37278A

GCP-30 Series
Genset Control

Configuration
Software version 4.3xxx

Manual 37278A
Manual 37278A GCP-30 Series - Genset Control

WARNING
Read this entire manual and all other publications pertaining to the work to be performed before install-
ing, operating, or servicing this equipment. Practice all plant and safety instructions and precautions.
Failure to follow instructions can cause personal injury and/or property damage.

The engine, turbine, or other type of prime mover should be equipped with an overspeed (overtempera-
ture, or overpressure, where applicable) shutdown unit(s), that operates totally independently of the
prime mover control unit(s) to protect against runaway or damage to the engine, turbine, or other type
of prime mover with possible personal injury or loss of life should the mechanical-hydraulic gover-
nor(s) or electric control(s), the actuator(s), fuel control(s), the driving mechanism(s), the linkage(s), or
the controlled unit(s) fail.

CAUTION
To prevent damage to a control system that uses an alternator or battery-charging unit, make sure the
charging unit is turned off before disconnecting the battery from the system.

Electronic controls contain static-sensitive parts. Observe the following precautions to prevent dam-
age to these parts.
• Discharge body static before handling the control (with power to the control turned off, contact a
grounded surface and maintain contact while handling the control).
• Avoid all plastic, vinyl, and Styrofoam (except antistatic versions) around printed circuit boards.
• Do not touch the components or conductors on a printed circuit board with your hands or with
conductive units.

Important Definitions

WARNING
Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.
Appropriate precautions have to be taken.

CAUTION
Indicates a potentially hazardous situation that, if not avoided, could result in damage to equipment.
This note should absolutely be observed when connecting the unit.

NOTE
References to other notes and supplements as well as tables and lists are identified by means of the
"i" symbol. Most of the referenced sections are included in the Annex.

Woodward Governor Company reserves the right to update any portion of this publication at any time. Information provided by Wood-
ward Governor Company is believed to be correct and reliable. However, Woodward Governor Company assumes no responsibility unless
otherwise expressly undertaken.

© Woodward Governor Company

All Rights Reserved.

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Revision History

Rev. Date Editor Changes

NEW 04-06-02 Tr Release
A 04-09-23 TP Parameter list added, extensive linguistic update and various minor corrections, functionality V4.3xxx

Contents

NOTE
All functions described in this manual are included in all controls (all versions) of the GCP-30 and
AMG 2 series. Any differences between the control units will be indicated by having the model number
for the applicable control unit at the beginning of the text. Please note that the AMG series controller is
not explicitly described in this manual.
[GCP-32] Functions marked and described like this are for applications with 2 power circuit breakers
(unit type GCP-32 and AMG 2/N2PB).
[GCP-31] Functions marked and described like this are for applications with 1 power circuit breaker
(unit type GCP-31 and AMG 2/N1PB).

CHAPTER 1. GENERAL INFORMATION ...........................................................................................7

Functional Overview................................................................................................................................ 8
CHAPTER 2. FUNCTION ................................................................................................................9
Considerations To Be Taken: ................................................................................................................. 9
Different Options ........................................................................................................................... 9
Systems With One Power Circuit Breaker .................................................................................... 9
Systems With Asynchronous/Induction Generators (Special Hardware!!) ................................. 10
Signals................................................................................................................................................... 10
Discrete Inputs ............................................................................................................................ 10
Control Outputs........................................................................................................................... 12
CHAPTER 3. PARAMETER .......................................................................................................... 14
Basic Data............................................................................................................................................. 15
Version Number (Software Version)........................................................................................... 15
Configuration Access.................................................................................................................. 15
Direct Configuration .................................................................................................................... 16
Generator Number...................................................................................................................... 17
Language Manager (Package XP, Option ZE) ........................................................................... 17
Service Display ........................................................................................................................... 17
Event Logger (Package XP, Option ZE) ............................................................................................... 18
Possible Event Logger Entries.................................................................................................... 18
Analog Inputs .............................................................................................................................. 20
Measuring ............................................................................................................................................. 21
Rated Values Of The Frequency ................................................................................................ 21
PTs (Voltage Transformers) ....................................................................................................... 22
Rated Voltage Values ................................................................................................................. 23
Generator Current....................................................................................................................... 25
Mains Current/Mains Power Measurement ................................................................................ 26
Password Configuration.............................................................................................................. 29

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Controller .............................................................................................................................................. 30
Table Of Set Point Values .......................................................................................................... 30
Analog Controller Outputs (Package Q, Option Q) .................................................................... 30
Real Power Controller, Set Point Values ................................................................................... 34
Frequency Controller.................................................................................................................. 35
Voltage Controller....................................................................................................................... 38
Power Factor cos ϕ Controller.................................................................................................... 42
Real Power Controller ................................................................................................................ 44
Load And/Or Var Sharing ........................................................................................................... 49
Automatic.............................................................................................................................................. 52
Load Management ..................................................................................................................... 52
Stop Of The Engine At Mains Failure [GCP-31] ........................................................................ 59
Interface...................................................................................................................................... 60
Breaker ................................................................................................................................................. 61
Functional Description................................................................................................................ 61
Breaker Logic ............................................................................................................................. 67
Start/Stop Ramp, Open GCB With F2 Alarm ............................................................................. 73
GCB Pulse/Continuous Pulse .................................................................................................... 74
Open/Close GCB........................................................................................................................ 75
Synchronization (With Synchronous Generators Only) ............................................................. 76
Synchronization Time Monitoring (With Synchronous Generators Only) .................................. 77
Dead Bus Start (With Synchronous Generators Only)............................................................... 78
Connection Functions (With Induction/Asynchronous Generators Only) .................................. 79
Connect Time Monitoring (With Induction/Asynchronous Generators Only) ............................. 80
Breaker Monitoring ..................................................................................................................... 81
Mains Decoupling....................................................................................................................... 82
Emergency Power (AMF) ..................................................................................................................... 84
Emergency Power With Breaker Logic "PARALLEL"................................................................. 85
Emergency Power With Breaker Logic "OPEN TRANSIT." ....................................................... 85
Emergency Power With Breaker Logic "CLOSED TRANSIT." .................................................. 86
Emergency Power With Breaker Logic "INTERCHANGE"......................................................... 86
Emergency Power With Breaker Logic "EXTERNAL"................................................................ 86
Emergency power With MCB Malfunction.................................................................................. 86
Emergency Power; Parameters ................................................................................................. 87
Protection.............................................................................................................................................. 88
Generator Power Monitoring ...................................................................................................... 89
Mains Power Monitoring............................................................................................................. 90
Generator Overload Monitoring.................................................................................................. 91
Generator Reverse/Reduced Power Monitoring ........................................................................ 92
Load Imbalance Monitoring ........................................................................................................ 93
Time-Overcurrent Monitoring ..................................................................................................... 94
Generator Frequency Monitoring ............................................................................................... 96
Engine Overspeed Monitoring.................................................................................................... 96
Generator Voltage Monitoring .................................................................................................... 97
Mains Frequency Monitoring ...................................................................................................... 98
Mains Voltage Monitoring........................................................................................................... 99
Phase/Vector Shift Monitoring dϕ/dt ........................................................................................ 100
Mains Settling Time.................................................................................................................. 101
Battery Voltage Monitoring ....................................................................................................... 102
Time Of Active Horn ................................................................................................................. 102
Discrete Inputs.................................................................................................................................... 103
Alarm Inputs ............................................................................................................................. 104
Configuring The Text For The Discrete Inputs......................................................................... 106
Control Inputs ........................................................................................................................... 106
Terminal 6................................................................................................................................. 109
Analog Inputs (Package XP, Option T701) ........................................................................................ 112
Setting The Analog Inputs ........................................................................................................ 112

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Outputs................................................................................................................................................120
Analog outputs (Package XP, Option A2) ................................................................................120
Relay Manager..........................................................................................................................121
Engine .................................................................................................................................................122
Start/Stop Sequence 'Gas Engine' ...........................................................................................123
Start/Stop Sequence 'Diesel Engine'........................................................................................126
Cool Down ................................................................................................................................128
Delayed Engine Monitoring And Firing Speed..........................................................................129
Pick-Up .....................................................................................................................................130
Counter / Real Time Clock..................................................................................................................131
Maintenance Call ......................................................................................................................131
Operating Hours Counter..........................................................................................................131
Start Counter.............................................................................................................................132
kWh Counter .............................................................................................................................132
Real Time Clock (Package XP, Option ZE)..............................................................................133
Current Slave Pointer ...............................................................................................................134
CHAPTER 4. COMMISSIONING.................................................................................................. 135
APPENDIX A. ANALOG OUTPUT MANAGER (PACKAGE XP, OPTION A2)................................... 137
APPENDIX B. RELAY MANAGER .............................................................................................. 140
APPENDIX C. INTERFACE PROTOCOL ...................................................................................... 144
Transmission Telegram.......................................................................................................................144
Receiving Telegram ............................................................................................................................153
Framework Conditions To The CAN Bus............................................................................................154
Transmission Telegram ............................................................................................................154
Coding Of The Current Direction ..............................................................................................154
Coding Of The Power Set Point Value .....................................................................................155
CAN IDs Guidance Bus ............................................................................................................155
APPENDIX D. LIST OF PARAMETERS........................................................................................ 156
APPENDIX E. SERVICE OPTIONS ............................................................................................. 164
Product Service Options .....................................................................................................................164
Returning Equipment For Repair ........................................................................................................164
Packing A Control .....................................................................................................................165
Return Authorization Number RAN ..........................................................................................165
Replacement Parts..............................................................................................................................165
How To Contact Woodward ................................................................................................................166
Engineering Services ..........................................................................................................................167
Technical Assistance ..........................................................................................................................168

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Illustrations And Tables

Illustrations
Figure 3-1: Control loop .......................................................................................................................................................... 30
Figure 3-2: Step response (Example)....................................................................................................................................... 31
Figure 3-3: Step responds - governor configuration ................................................................................................................ 33
Figure 3-4: CAN bus load/var sharing, wiring diagram........................................................................................................... 50
Figure 3-5: CAN bus load/var sharing, diagram ...................................................................................................................... 50
Figure 3-6: Breaker control logic 'Impulse'.............................................................................................................................. 74
Figure 3-7: Breaker control logic 'Continuous' ........................................................................................................................ 75
Figure 3-8: Characteristic of the time-overcurrent monitoring ................................................................................................ 94
Figure 3-9: NO/NC logic ....................................................................................................................................................... 104
Figure 3-12: Sprinkler operation............................................................................................................................................ 111
Figure 3-13: VDO transmitter 323.805/001/001 (slope)........................................................................................................ 117
Figure 3-14: Start-Stop sequence: Gas engine ....................................................................................................................... 123
Figure 3-15: Wiring diagram for opening gas valves with the GCP-30 from V4.1001 ......................................................... 124
Figure 3-16: Start-stop sequence: Diesel engine.................................................................................................................... 126
Figure 3-17: Delayed engine monitoring ............................................................................................................................... 129
Figure 4-1: Analog outputs - cosϕ scaling ............................................................................................................................. 139

Tables
Table 1-1: Manual - Overview................................................................................................................................................... 7
Table 1-2: Functional overview ................................................................................................................................................. 8
Table 3-1: Event recorder - Messages, part 1 .......................................................................................................................... 19
Table 3-2: Event recorder – Messages, part 2.......................................................................................................................... 20
Table 3-3: Set point value table ............................................................................................................................................... 30
Table 3-4: Limit values, permissible limits.............................................................................................................................. 61
Table 3-5: Limit values generator, dead bus start .................................................................................................................... 64
Table 3-6: Limit values mains, dead bus start.......................................................................................................................... 65
Table 3-7: Limit values, Emergency power............................................................................................................................. 84
Table 3-10: Discrete alarm inputs - delay stages ................................................................................................................... 105
Table 3-11: Function - external operation mode selection..................................................................................................... 107

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Chapter 1.
General Information

Type English German

GCP-31/32 series
GCP-31/32 - Installation GR37239 37239
GCP-31/32 - Configuration this manual Ö GR37278 37278
GCP-31/32 - Function/Operation GR37238 37238
GCP-31/32 - Application GR37240 37240
Option SB GR37200 37200
Option SC06 37182 GR37182
Option SC04 37236 GR37236
Option SC02 37302 GR37302
Option D08 37286 GR37286
Option T7 37261 GR37261
Option TZ 37241 GR37241
more options upon request

Additional manuals
IKD 1 - Manual 37135 GR37135
Discrete expansion board with 8 discrete inputs and 8 relay outputs that can be coupled via the CAN bus to the control unit. Evalua-
tion of the discrete inputs as well as control of the relay outputs is done via the control unit.
IKN 1 - Manual 37136 GR37136
20channel NiCrNi temperature scanner that monitors the temperature values for exceeding or falling below a threshold value, meas-
ured through senders on the IKN 1. A configured relay on the board of the IKN 1 will trip. The IKN 1 can be coupled with the con-
trol unit using the CAN bus to display measuring values as well as alarms.
LeoPC1 - Manual 37146 GR37146
PC program for visualization, for configuration, for remote control, for data logging, for language upload, for alarm and user man-
agement and for management of the event recorder. This manual describes the use of the program.
LeoPC1 - Manual 37164 GR37164
PC program for visualization, for configuration, for remote control, for data logging, for language upload, for alarm and user man-
agement and for management of the event recorder. This manual describes the programming of the program.
GW 4 - Manual 37133 GR37133
Gateway for transferring the CAN bus to any other interface or bus.
ST 3 - Manual 37112 GR37112
Control to govern the air fuel ratio of a gas engine. The ratio will be directly measured though a Lambda probe and controlled to a
configured value.
Table 1-1: Manual - Overview

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Functional Overview
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Function Package
GCP-31 GCP-32

XPQ+SC06

XPQ+SC06
XPQ+SB03

XPQ+SB03
Option

XPQ

XPQ
XPD

XPD
BPQ

BPQ
BPD

BPD
Common functions
1× readiness for operation relay Std. 9 9 9 9 9 9 9 9 9 9 9 9
4/6× control relay (form A, make contact) Std. 9 9 9 9 9 9 9 9 9 9 9 9
7× freely configurable relay outputs (form A, make contact) Std. 9 9 9 9 9 9 9 9 9 9 9 9
2× three-position controller for n/f/V/P, cosϕ Std. 9 -- 9 -- -- -- 9 -- 9 -- -- --
2× three position controller for n/f/V/P, cosϕ via relay manager Q ; 9 ; 9 9 9 ; 9 ; 9 9 9
2× analog controller outputs for n/f/V/P/Q and PWM output Q ; 9 ; 9 9 9 ; 9 ; 9 9 9
6× discrete control inputs Std. 9 9 9 9 9 9 9 9 9 9 9 9
16× discrete alarm inputs Std. 9 9 9 9 9 9 9 9 9 9 9 9
CAN bus interface 'Guidance level' Std. 9 9 9 9 9 9 9 9 9 9 9 9
CAN bus coupling to 2× IKD 1 and ST 3 SC06 ; ; ; ; -- 9 ; ; ; ; -- 9
CAN bus coupling to mtu MDEC and Scania EMS/S6 SC06 ; ; ; ; -- 9 ; ; ; ; -- 9
CAN bus coupling to SAE J1939 SC06 ; ; ; ; -- 9 ; ; ; ; -- 9
RS232 coupling via Caterpillar CCM to ECM & EMCP-II SB03 ; ; ; ; 9 -- ; ; ; ; 9 --
7× analog inputs T701 ; ; 9 9 9 9 ; ; 9 9 9 9
1× Pickup input Std. 9 9 9 9 9 9 9 9 9 9 9 9
2× analog outputs + external operation mode selection by term. 127/128 A2 ; ; 9 9 9 9 ; ; 9 9 9 9
Password system Std. 9 9 9 9 9 9 9 9 9 9 9 9
Configuration via DPC possible (direct configuration) Std. 9 9 9 9 9 9 9 9 9 9 9 9
Event recorder with real-time clock ZE ; ; 9 9 9 9 ; ; 9 9 9 9
Language manager for LCD texts Std. 9 9 9 9 9 9 9 9 9 9 9 9
Running hours counter, maintenance counter, start counter, kWh counter Std. 9 9 9 9 9 9 9 9 9 9 9 9
Control/synchronization
Synchronization of 1 breaker with V and f correction Std. 9 9 9 9 9 9 9 9 9 9 9 9
Synchronization of 2 breakers with V and f correction Std. -- -- -- -- -- -- 9 9 9 9 9 9
Closing to a dead/voltage free busbar (dead bus start) Std. 9 9 9 9 9 9 9 9 9 9 9 9
Voltage control Std. 9 9 9 9 9 9 9 9 9 9 9 9
cosϕ control Std. 9 9 9 9 9 9 9 9 9 9 9 9
Speed/frequency control Std. 9 9 9 9 9 9 9 9 9 9 9 9
Generator real power control & import/export real power control Std. 9 9 9 9 9 9 9 9 9 9 9 9
Real & var sharing Std. 9 9 9 9 9 9 9 9 9 9 9 9
Analog setpoint value for real power T701 ; ; 9 9 9 9 ; ; 9 9 9 9
Analog mains interchange (import/export) real power measuring T701 ; ; 9 9 9 9 ; ; 9 9 9 9
Breaker logic "open transition" & "closed transition" Std. -- -- -- -- -- -- 9 9 9 9 9 9
Breaker logic "soft loading" Std. -- -- -- -- -- -- 9 9 9 9 9 9
Breaker logic "parallel operation" Std. 9 9 9 9 9 9 9 9 9 9 9 9
Breaker logic "external" Std. 9 9 9 9 9 9 9 9 9 9 9 9
Remote control via interface Std. 9 9 9 9 9 9 9 9 9 9 9 9
Protective functions
Over-/undervoltage protection, generator Vgen>/< Std. 9 9 9 9 9 9 9 9 9 9 9 9
Over-/undervoltage protection, mains Vmains>/< Std. 9 9 9 9 9 9 9 9 9 9 9 9
Over-/underfrequency protection f>/< Std. 9 9 9 9 9 9 9 9 9 9 9 9
dϕ/dt vector/phase jump protection dϕ/dt Std. 9 9 9 9 9 9 9 9 9 9 9 9
Reverse/reduce power protection +/-Pgen< Std. 9 9 9 9 9 9 9 9 9 9 9 9
Overload protection Pgen> Std. 9 9 9 9 9 9 9 9 9 9 9 9
Load imbalance protection ∆Pgen> Std. 9 9 9 9 9 9 9 9 9 9 9 9
Time-overcurrent protection Itoc>/>> Std. 9 9 9 9 9 9 9 9 9 9 9 9
Battery voltage protection Vbat< Std. 9 9 9 9 9 9 9 9 9 9 9 9
Table 1-2: Functional overview

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Chapter 2.
Function

Considerations To Be Taken:
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡

Different Options
According to a control unit's configuration, different parameters may be displayed and not all parameters will be
available:
• Various inputs and outputs will be present or deleted, corresponding to the control configuration (depending
on your order). Please refer to the wiring diagram and the notes regarding the packages and options contained
in these. Refer to the data plate to see if the corresponding option is contained in the control. If the data plate
has been removed, the configuration screens may be called up in succession and the options may be deter-
mined with the assistance of this manual.
• Specific display screens correspond to specific types of interfaces.

Systems With One Power Circuit Breaker

If a control with a 2-power-circuit-breaker logic [GCP-32] or a 1-power-circuit-breaker logic [[GCP-31] is in-
stalled for use with one power circuit breaker, the following shall apply:
• If the control unit application is to be operated in an isolated operation or an isolated parallel operation (the
MCB is opened), the following signals must be applied:
- "Reply: MCB is open" / "Isolated operation" (terminal 54): HIGH signal (logical "1") and
- "Enable MCB" (terminal 53): LOW signal (logical "0").
- Condition: The Parameter 150 "Emergency power" must be set to "OFF".
• If the control unit application is to be operated in a mains parallel operation (the MCB always is closed if the
generator operates in mains parallel), the following signals have to be applied:
- "Reply: MCB is open" / "Isolated operation" (term. 54): LOW-Signal (log. "0") and
- "Enable MCB" (terminal 53): HIGH signal (logical "1").
• If the control unit application is to be operated in isolated(parallel) as well as in mains parallel operation (the
MCB can be opened or closed), the following signals have to be applied:
- Reply, that the GCB is closed (terminal 4) and
- Reply, that the MCB is closed (terminal 54) and
- "Enable MCB" (terminal 53)

Case A - The MCB must remain closed (except at an emergency power operation): The "Enable MCB" (ter-
minal 53) always has to be logical "1".

Case B - The MCB can be opened (also outside an emergency power operation): The "Enable MCB" (termi-
nal 53) must be set logical "1" if a mains parallel operation has to be established (a synchronization of the
MCB has to be performed). During the synchronization of the MCB (GCP-31: this function is performed ex-
ternally from the controller) the generator frequency is controlled with a slightly higher value than the mains
frequency (df max/2). Additionally a message is displayed on the controller. The "Enable MCB" (terminal
53) has to be logically "0", if the system has to be operated in isolated operation (control of set point fre-
quency and set point voltage).

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Systems With Asynchronous/Induction Generators (Special Hardware!!)

In the case of systems with asynchronous/induction generators, the following must be noted:
• Systems with asynchronous/induction generators are 1-power-circuit-breaker systems [GCP-31].
• Connect the remnant voltage to terminals 23/24. Terminals 23/24 are voltage sensitive and can detect volt-
ages from 0.5-480 volts. These terminals are utilized to determine the frequency (rotary speed) of the remnant
voltage with small amplitudes. If the GCB is not closed, only the remanence voltage, which is less than
10 volts, is measured instead of the generator voltage. The generator voltage and frequency is monitored only
once the GCB is closed. If the control is in mains parallel operation, the inputs from 23/24 are no longer taken
into account.

Signals
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡

Discrete Inputs

NOTE
All emergency power (Parameter 150 "Emergency power" has to be configured to ON) or Critical
(Sprinkler) mode operations (terminal 6 must be configured accordingly; Parameter 223) will be carried
out in the TEST and AUTOMATIC operation modes regardless of the discrete inputs "Automatic 1" and
"Automatic 2". If terminals 3 and 5 are enabled simultaneously, priority is given to terminal 3.

Automatic 1 (Start/Stop the engine) Terminals 3/7

Selection of the operation mode AUTOMATIC with "real power set point value 1" as well as start-
ing/stopping of the engine.
Set ................. If the control is in AUTOMATIC mode (selected using the mode selection switch on
the front panel) the "real power set point value 1" (Parameter 41) is controlled in mains
parallel mode. In the case of baseload (C), the engine is started immediately and mains
parallel operation is performed following the synchronization of the generator power
circuit breaker GCB. In the case of incoming/import (I) or outgoing/export power (E),
starting is performed by automatic start/stop operation. If no automatic start/stop
operation is enabled (Parameter 101), the engine is started immediately. The set point
value can be modified via both the configuration mode and via the "up/down" push
buttons in AUTOMATIC mode.
Reset ............. If the engine does not run either in Critical (Sprinkler) mode or emergency power
mode, the GCB is opened, a cool down is performed and the engine is stopped.

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Automatic 2 (Start/Stop the engine) Terminals 5/7

Selection of the operation mode AUTOMATIC with "real power set point value 2" as well as start-
ing/stopping of the engine.
Set.................. If the control is in AUTOMATIC mode (selected using the mode selection switch on
the front panel) the "real power set point value 2" (Parameter 42) is controlled in mains
parallel mode. In the case of a baseload (C), the engine is started immediately and
mains parallel operation is performed following the synchronization of the generator
power circuit breaker GCB. In the case of incoming/import (I) or outgoing/export
power (E), starting is performed by automatic start/stop operation. If no automatic
start/stop operation is enabled (Parameter 102), the engine is started immediately. The
set point value can be modified via both the configuration mode and via the "up/down"
push buttons in AUTOMATIC mode.
Reset..............If the engine does not run either in Critical (Sprinkler) mode or emergency power
mode, the GCB is opened, a cool down is performed and the engine is stopped.

If a set point value is specified externally (e. g. via an 0/4 to 20 mA analog input or a bi-directional in-
terface), the external set point value is adjusted with the discrete input (see Table 3-3: Set point value
table).

Multifunction Terminals 6/7

Discrete input terminal 6 may reveal different functions. Please note that, when used as a Critical
(Sprinkler) mode input, the discrete input reveals negative functional logic. The selection of the logic
is made using Parameter 223.

Reply: GCB is open Terminals 4/7

With this input (logical "1") the control is signaled that the GCB is open (the "GCB ON" LED is off).

[GCP-32] Reply: MCB is open Terminals 54/7

With this input (logical "1") the control is signaled that the MCB is open (the LED "MCB ON" is off).

[GCP-31] Isolated operating / reply external breaker Terminals 54/7

With this input (logical "1") the control is signaled that the genset is operated in isolated operation
(the LED "Mains parallel" is off). This discrete input is used to decide whether, after closing the
GCB, frequency control (terminal 54 = logical "1") or real power control (terminal 54 = logical "0") is
to be carried out.

Enable MCB Terminals 53/7

Set.................. A mains parallel operation is enabled and the MCB (GCP-31: this function is per-
formed externally from the controller) is operated.
Reset.............. The MCB is not operated. Depending on the reply of the MCB, an isolated operation
or a main parallel operation is performed.

Discrete inputs Terminals 34 to 36/33 and 61 to 73/60

Freely programmable alarm inputs with message text, alarm class, time delay, delayed engine moni-
toring and NO/NC function.

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Control Outputs

Readiness for operation Terminals 18/19

Setting this relay signals the readiness for operation of the control. If this relay is disabled, the proper
function of the control can no longer be guaranteed. Appropriate actions must be initiated once this
relay has been disabled (e.g. open GCB, shut-down engine).

Preheating (Diesel engine) pre-assigned to terminals 37/38

When this relay is enabled, the diesel engine's glow plugs are enabled (please note chapter "Diesel
Engine").

Ignition "ON" (Gas engine) pre-assigned to terminals 37/38

When this relay is enabled, the ignition of the gas engine is switched on (please note chapter "Gas
Engine").

Fuel relay / gas valve Terminals 43/44

a) Diesel engine: fuel relay (Parameter 282)
a.1) Operating solenoid
Enabling this relay will initiate the starting sequence of the diesel engine. If the engine is to be
shutdown the relay will immediately de-energize. If the speed of the engine drops below the ad-
justable ignition speed, the relay also de-energizes (note chapter "Diesel Engine").
a.2) Stopping solenoid
Enabling this relay will stop the engine.

b) Gas engine: gas valve

Enabling this relay will initiate the starting sequence of the gas engine. The gas valve will be
opened. If the engine is to be shut down the relay will immediately de-energize. If the speed of the
engine falls below the adjustable firing speed (Parameter 285), the relay also de-energizes (note
chapter "Gas Engine").

Starter Terminals 45/46

Enabling this relay will engage the starter. When the firing speed is reached (Parameter 285), at STOP
mode, or after expiration of the crank time (Parameter 272 or Parameter 278), the starter is disen-
gaged.

Centralized alarm pre-assigned to terminals 47/48

Enabling this relay will issue a centralized alarm. This permits a horn or buzzer to be operated by the
control unit during a fault condition. The operator can reset the relay by pressing the push-button
"RESET" for a short period. The relay will be set again in the event of another alarm. The centralized
alarm is set for alarms of alarm classes F1 through F3.

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Command: close GCB Terminals 14/15

Enabling this relay will close the GCB. If the GCB closing command is configured to continuous cur-
rent (Parameter 120), in response to a missing discrete input "Reply: GCB is open" the relay is main-
tained in its closed state; this also applies if the voltages of the generator and the busbar are equal. In
the event of a class F3 alarm this relay de-energizes immedately. In the event of a class F2 alarm or
for shutdown the relay does not de-energize immediately, it will de-energize if the power is less than
3.125 % of the rated generator power. If operation of the GCB is configured as a momentary pulse,
the relay de-energizes after the pulse is output. This function must be used in conjunction with an ex-
ternal holding coil for the GCB.

Command: open GCB Terminals 41/42

Enabling this relay will open the GCB. Following "Reply: GCB is open", the relay output is de-
energized.

[GCP-32] Command: close MCB Terminals 16/17

Enabling this relay will close the MCB. This output is always a momentary pulse. For the MCB to
remain closed an external holding coil must be used.

[GCP-32] Command: open MCB Terminals 39/40

By enabling this relay, the MCB will open. Following "Reply: MCB is open", the relay output is de-
energized.

Relay manager Terminals 74 to 83, 37/38, 47/48

The "Relay Manager" manages the relays listed here (Parameter 263).

Default values:
•·Relay 1 to 5 = relay number (e. g. relay 1 = alarm class 1, relay 2 = alarm class 2, etc.)
•·Relay 6 = Ignition / preheating
•·Relay 7 = Centralized alarm

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Chapter 3.
Parameter

Configuration can be performed using a PC and the PC program LeoPC1 via the serial interface or via the front
panel push-buttons and the front panel LC display. Additionally it is possible to configure the unit via CAN bus.
The following Baud rates are therefore usable:

• Configuration via direct configuration plug (RS-232) = 9,600 Baud (8 Bit, no parity, 1 Stop bit)
• CAN bus (CiA) (RS-485) = 125, 250 or 500 kBaud configurable via the serial interface.

CAUTION
For configuration of this control (firmware software version starting with 4.3xxx) a PC software with
the following version number or higher must be used:
LeoPC1 from 3.1

Because of functional enhancements within the controls of the GCP-30 Series it is necessary (beginning with
firmware version 4.3xxx of the GCP) to use a newer version of the configuration software LeoPC1. This version
at least must be 3.1 or higher. If the LeoPC1 software you currently use has an older version the latest version
can be ordered at our technical sales or can be downloaded on our homepage at
http://www.woodward.com/software.

After an updated version of LeoPC1 has been installed older project files may still be used. These can be trans-
ferred to the appropriate file locations within the new program.

WARNING
Please note that configuration only should be performed while the system is not operating.

NOTE
Before configuring a control unit, familiarize yourself with the parameters listed at the end of this man-
ual.

You can scroll through the parameters if you are in configuration mode (simultaneously pressing of "Digit↑" and
"Cursor→" push buttons permits access to the configuration mode) using "Select". If you press and hold the "Se-
lect" push button the scroll function will be activated, allowing for the parameter screens to be advanced through
more rapidly. The control unit will permit the operator to reverse up to four previous screens (exception: it is not
possible to reverse from the first parameter to the last parameter or to backup through the service screens). To
perform the reverse function through the parameter screens, the "Select" and "Cursor→" push buttons must be
pressed and released simultaneously. The control unit will revert to automatic mode, if an entry isn't performed, a
change made or any other action performed for 90 seconds.

NOTE
There are two different types of hardware, which are described in this manual: A 120 Vac version [1]
and a 480 Vac version [4]. The configuration screens and parameters differ in both versions, and the
setting limits also differ. The two types are identified by the preceding voltage values ([1] ... or [4] ...).

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Basic Data
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Version Number (Software Version)

Parameter 1
Software version
Software version
Vx.xxxx Display of the software version.

Configuration Access
The control is equipped with a three-level code and configuration hierarchy, which enables it to access various
configuration screens for different users. A distinction is made between:

Code level 0 (CS0) - User: Third party

This code level enables no access to the parameters. The configuration is blocked.

Code level 1 (CS1) - User: Customer

This code level entitles the user to change a few selected parameters. Changing passwords is not possible at
this level.

Code level 2 (CS2) - User: Commissioner

With code level 2 the user is granted full access rights, and therefore has direct access to all parameters (dis-
playing and changing). Additionally, the user may change the passwords for levels 1 and 2 in this level. In
this code level the password protection may be completely disabled (see below).

NOTE
Once a password has been set it will not change unless a person alters that parameter with access to it
regardless of how often the configuration mode is accessed. If an incorrect code number is entered,
the code level is set to CS0 and the control is therefore locked for external users (setting of password
on page 27). The control unit automatically reverts to code level CS0 two hours after the entry of a
password. By entering the correct password, the corresponding level may again be accessed.
The code level may also be accessed using the PC program LeoPC1.

Parameter 2
Enter code number 0000 to 9999
Enter code
0000 Upon accessing the configuration mode a four-digit password is requested which
identifies the level of access the user is to be granted. The displayed num-
ber XXXX is a randomly generated number that must be changed to the correct
password and confirmed with the "Select" push-button. If the random number has
been confirmed with "Select" without being changed, the control's access level re-
mains as it was. Two four-digit code numbers (0000-9999) exist for accessing the
parameters . Changing the code level and setting up new code words for the users
can only be accomplished on the CS2 level. No assignment is required for the
"third party" user level, as the user does not usually receive access to the configura-
tion level (protected via the code).

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Direct Configuration

NOTE
To carry out direct configuration, you require a direct configuration cable (Part #5417-557), the
LeoPC1 1 program (supplied with the cable) and the corresponding configuration files. Please consult
the online help installed when the program is installed for a description of the LeoPC1 1 PC program
and its setup.

Remote configuration: For remote configuration the level CS2 password must be entered via the parameter
"password", otherwise, the values can only be read but not written. Entering via the CAN bus has no influence on
the displayed parameters. If the control is in code level CS0, the same level of access will be granted as described
in the previous section. The configuration via the bus is enabled for 2 hours from that point in time from the time
that the last readout of configuration was performed. After two hours the password must be entered again to ac-
cess the parameters. The password must also be entered prior to loading languages. If the code for level CS2 is
entered via the front panel of the control, the access for configuration via the CAN bus is automatically enabled.

WARNING
If Parameter 3 "Direct para." is configured to "YES", communication via the interface with terminals X1-
X5 is blocked. If communication is to be re-established via interface X1-X5 after finishing the configura-
tion of the control (e.g. CAN bus connection via a Gateway GW 4), Parameter 3 must be configured to
"NO"!
The direct configuration port is diabled (Parameter 3 is automatically switched from YES to NO) once
the firing speed (Parameter 285) has been reached. This requires any further configuration of the con-
trol to be accomplished via the front display and push buttons or via the CAN bus interface. The de-
activation of direct configuration is performed as a safety precaution. If multiple systems starting si-
multaneously (e. g. emergency power situation) a simultaneous switching of the generator breakers to
the dead busbar is prevented.

Parameter 3
Direct configuration YES/NO
Direct para.
YES YES ..............Configuration via the lateral plug is enabled, and any CAN bus con-
nection that may be available via terminals X1-X5 is disabled. The
following conditions must be met in order to carry out configuration
via the lateral plug:
- A connection must be established via the direct configuration cable
between the control and the PC,
- The baud rate of the LeoPC1 program must be set to 9,600 Baud
and
- The corresponding configuration file must be used (file name:
"xxxx-xxxx-yyy-zz.asm").
NO ................Configuration via the lateral plug cannot is disabled, and any avail-
able CAN bus connection via the terminals X1-X5 is enabled.

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Generator Number
Parameter 4
Generator number (number of the control on the CAN bus) 1 to 14
Generator number
0 If several controls are available and these are coupled via a CAN bus, a different
number must be assigned to each control for differentiation purposes. The genera-
tor number 1 should be assigned even in the case of a single control. The control
number entered here corresponds to the control number in the program LeoPC1.

Language Manager (Package XP, Option ZE)

In order to load a different language into the control, follow the steps below:

1.) A communication link between your PC and the control unit must be established via the direct configura-
tion cable (DPC). To do this insert the serial cable into the COM port of your PC and the RJ45 plug into the
communication port of the control unit (a connection via CAN and GW 4 is also possible).
2.) Enter the password for code level CS2 into the control (Parameter 2).
3.) If the direct configuration cable (DPC) is to be utilized, the Parameter 3 "Direct para." must be configured
as "YES". If a GW 4 or the CAN bus is to be utilized for configuration, the Parameter 3 "Direct para." must
be configured as "NO".
4.) If the desired language is to be loaded via the CAN bus, enter the number (1 to 14) into the "Generator
number" screen (Parameter 4), so that LeoPC1 is able to communicate with the desired control unit.
5.) Scroll to the configuration screen "Language" (Parameter 5) and select the primary language for the control
unit by selecting "first".
6.) Start the program LeoPC1, and log into the program by selecting "System" from the tool bar and "User
login…" from the drop down menu. Enter the user name and password and click the "OK" button.
7.) Open the applicable *.cfg file for the application by selecting "File" from the tool bar and "open" from the
drop down menu. Select the proper *.cfg file from the window that appears.
8.) To start communication between the control unit and LeoPC1 select "Communication" from the tool bar
and "Connect" from the drop down menu.
9.) Select "Devices" from the tool bar and "Parameterize…" from the drop down menu. A window will appear
with all the tunable parameters in it. Move the cursor over the numbers for the password and double click.
10.) Enter the password for the code level CS 2 (Parameter 2).
11.) Close the parameterization window.
12.) Select "Devices" from the tool bar and "Load language…" from the drop down menu.
13.) Load the desired language file using the button "Load LNG file ..."
14.) Select the desired language and click the "Transfer language" button.
15.) If an additional language is to be loaded into the control unit, return to step 5 and select "second" (not pos-
sible via LeoPC1). Repeat all steps in order as when programming the first language.
Parameter 5
Language first/second
Language
----- first .............. All texts are displayed in the first language.
second .......... All texts are displayed in the second language.

Service Display
Please note the description of these screens in manual 37238.

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Manual 37278A GCP-30 Series - Genset Control

Event Logger (Package XP, Option ZE)

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NOTE
Displaying and clearing of events depends on access authorization:
# #
• Displaying of events...................... Access authorization CS 1 und CS 2
#
• Clearing of events ......................... Access authorization CS 2
#
CS = Code level (see chapter "Configuration" on page 15.

When an event (see following table) occurs it is stored in the event logger. The following information is re-
corded:

• Event
• Date of occurrence
• Time of occurrence

Up to 50 events can be stored in the event logger (beginning with the most current one). For more than 50 en-
tries, the oldest event will be deleted. By pressing the "RESET" push-button, the event that is displayed is
cleared. The events are displayed on two lines. The top line indicates the date and time of the event that has oc-
curred; the lower line shows the type of event.
Parameter 6
Event logging YES/NO
check event list
YES YES ..............The events can be viewed and acknowledged.
NO ................The events cannot be viewed and acknowledged.

NOTE
Starting from version 4.3010, the event logger can also be read via CAN. This enables to read the event
logger via GW4/modem for example.
If the event logger is to be read via CAN, the respective connection, e.g. GW4, has to be selected in
LeoPc1. Reading the event logger is then performed like for direct configuration.

Possible Event Logger Entries

Parameter 7
50 × alarm log
YY-MM-DD ss:mm
xxxxxxxxxxxxxxxx YY-MM-DD ss:mm........ Display of day and time of the event.
xxxxxxxxxxxxxxxx ... See bottom table.

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Event type xxxxxxxxxxxxxxxx

German English
Internal events
Engine overspeed (Pickup) Überdrehzahl Over speed
Generator overfrequency Überfrequenz Overfrequency
Generator underfrequency Unterfrequenz Underfrequency
Generator overvoltage Gen.-Überspg. Gen.overvolt.
Generator undervoltage Gen.-Unterspg. Gen.undervolt.
Generator overcurrent, level 1 Gen.-Überstrom 1 Gen.overcurr. 1
Generator overcurrent, level 2 Gen.-Überstrom 2 Gen.overcurr. 2
Reverse/reduced load Rück/Minderleist Revers/min.power
Overload Gen.-Überlast Gen.overload
Load imbalance Schieflast Load unbalance
Mains overvoltage Netz-Überspg. Mains-overvolt.
Mains undervoltage Netz-Unterspg. Mains-undervolt.
Mains overfrequency Netz-Überfreq. Mains-underfreq.
Mains underfrequency Netz-Unterfreq. Mains-overfreq.
Mains phase/vector jump Phasensprung Phase shift
Mains df/dt (optional) df/dt-Fehler df/dt error
Battery undervoltage Batt.-Unterspg. Batt.undervolt.
GCB synchronization time monitoring Synch.Zeit GLS GCB syn.failure
MCB synchronization time monitoring Synch.Zeit NLS MCB syn.failure
Switching to dead busbar time monitoring Stör. df/dU-max. Failure df/dVmax
Fault P-control: GCB will be opened after time boost/settle R-Rampe:GLS auf P-ramp:open GCB
GCB malfunction on closing Störung GLS ZU GCBclose failure
MCB malfunction on closing Störung NLS ZU MCBclose failure
GCB malfunction on opening Störung GLS AUF GCB open failure
MCB malfunction on opening Störung NLS AUF mCB open failure
Faulty reference power zero control with interchange synchronization on GCB Bezugsleist. <>0 Power not zero
Maintenance call Wartung Service
Interface monitoring X1-X5 Fehl.Schnit.X1X5 Interf.err. X1X5
Interface monitoring Y1-Y5 Fehl.Schnit.Y1Y5 Interf.err. Y1Y5
Pickup/generator frequency mismatch Pickup/Gen.Freq. Pickup/Gen.freq.
Plausibilty control power (optional) L.-Plausibilität Plausibility ch.
Shutdown malfunction Abstellstörung Stop failure
Start failure Fehlstart Start failure
Unintentional stop ungewollter Stop unintended stop
Discrete Inputs in the GCP/AMG
Discrete input [D01]
Discrete input [D02]
Discrete input [D03]
Discrete input [D04]
Discrete input [D05]
Discrete input [D06]
Discrete input [D07]
Discrete input [D08]
frei parametrierbar freely configurable
Discrete input [D09]
Discrete input [D10]
Discrete input [D11]
Discrete input [D12]
Discrete input [D13]
Discrete input [D14]
Discrete input [D15]
Discrete input [D16]
Table 3-1: Event recorder - Messages, part 1

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External expansions
Discrete input [D1.01] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.02] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.03] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.04] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.05] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.06] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.07] of IKD1.1 Option SC06 + IKD1
Discrete input [D1.08] of IKD1.1 Option SC06 + IKD1
frei parametrierbar freely configurable
Discrete input [D2.01] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.02] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.03] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.04] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.05] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.06] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.07] of IKD1.2 Option SC06 + IKD1
Discrete input [D2.08] of IKD1.2 Option SC06 + IKD1
Air-fuel-ratio sender alarm from ST 3 Option SC06 + ST3 Lambdasonde Lambda probe
Other Events
Switched into operation mode MANUAL BAW Hand Manual mode
Switched into operation mode AUTOMATIC BAW Automatik Automatic mode
Switched into operation mode STOP BAW Stop Stop mode
Switched into operation mode TEST BAW Probe Test mode
Switched into operation mode Load TEST BAW Lastprobe Loadtest mode
"MCB OFF" push-button pressed (in MANUAL MODE) Taste NLS AUS Button MCB OFF
"GCB OFF" push-button pressed (in MANUAL MODE) Taste GLS AUS Button GCB OFF
"GCB ON" push-button pressed (in MANUAL MODE) Taste GLS EIN Button GCB ON
"MCB ON" push-button pressed (in MANUAL MODE) Taste NLS EIN Button MCB ON
"START" push-button pressed (in MANUAL MODE) Taste Hand START Button START
"STOP" push-button pressed (in MANUAL MODE) Taste Hand STOP Button STOP
Remote start Fernstart Remote start
Remote stop Fernstop Remote stop
Remote acknowledgment via interface Fernquittierung Remote acknowl.
Remote acknowledgment via terminal 6 Quittierung Kl.6 Acknowledg-ter 6
Acknowledgment via "RESET" button Quittierg. Taste Ackn.button QUIT
Mains failure (AMF) Netzausfall Mains failure
Return of the mains (this entry occurs once the mains settling time expired) Netzwiederkehr Mains o.k.
Emergency power (AMF) started Notstrom Anfang Emerg. run start
Emergency power (AMF) ended Notstrom Ende Emerg. run stop
Engine successfully started (engine enabled, firing speed exceeded) Aggr. gestartet Start of engine
Engine stopped (engine not enabled, firing speed was undershot) Aggregatestop Stop of engine
Table 3-2: Event recorder – Messages, part 2

Analog Inputs
The control unit is not able to display the entire text for the analog alarms. The 6 digits on the left side of the
screen are reserved for the analog values to be monitored. If the text for these alarms is expanded, the monitored
values will be overwritten and not displayed. The text below is the message that is displayed for each of the fault
conditions.

WIRE__........Wire break
ALARM_........Limit value 1
STOP__........Limit value 2
Parameter 8
Example
YY-MM-DD ss:mm
STOP Analog inpu Limit value 2 (STOP) of the analog input 1 was exceeded. The text of the analog
alarm input will be moved 6 letters to the right. In this case the measured value dis-
appears. Please note this text displacing already during the configuration of the
analog input!

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Measuring
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WARNING
The following values must be entered correctly for the generator to be monitored. Failure to do so may
lead to incorrect measuring resulting in damage to or destruction of the generator and/or personal in-
jury or death.

Parameter 9
Configuration of the measuring YES/NO
Configure
measuring YES Various parameters are grouped together in blocks to allow navigation through the
large number of configuration screens more rapidly. Selecting "YES" or "NO" has
no effect on whether or not control or monitoring is carried out. The input merely
has the following effect:
YES.............. The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modifications can be made
to the parameters ("Cursor→", "Digit↑" or "Select" push-buttons).
NO................ The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Rated Values Of The Frequency

Parameter 10
Generator set point frequency 40.0 to 70.0 Hz
Generator freq.
f set 00.0Hz The generator set point frequency is configured here. This is required for the fre-
quency controller in isolated and no-load operation. In most cases, the values en-
tered into this screen will be 50 Hz or 60 Hz. It is possible to configure other values
into this parameter.
Parameter 11
Rated system frequency 50/60 Hz
Rated system
frequency 00.0Hz The rated system frequency is the value that the generator is going to connect to.
This parameter is dependent on the individual country or individual system.

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PTs (Voltage Transformers)

WARNING
If the value of the following parameter is changed, the values of the following parameters have to be
checked:
• Generator rated voltage (Parameter 18)
• Voltage controller insensitivity (Parameter 64)
• Synchronizing dVmax (Parameter 124)
• Dead bus start GCB dVmax (Parameter 133)
• Threshold generator overvoltage (Parameter 188)
• Threshold generator undervoltage (Parameter 190)

Parameter 12
Secondary gen. voltage transformer [1] 50 to 125 V; [4] 50 to 480 V
Gen.volt.transf.
secondary 000V L This value corresponds to the secondary voltages of the PTs, which are di-
rectly connected to the control.

The secondary voltage is set here in V. This parameter is used to display the secon-
dary voltages on the control unit screen.
Parameter 13
Primary gen. voltage transformer 0.050 to 65.000 kV
Gen.volt.transf.
primary 00.000kV L This value corresponds to the primary voltages of the PTs.

The primary voltage is set her in kV. This parameter is used to display the primary
voltages on the control unit screen. In the case of measured voltages of 100 V
without a measurement transducer, 00.100 kV must be set here; for 400 V =
00.400 kV.
Parameter 14
Secondary busbar voltage transformer [1] 50 to 125 V; [4] 50 to 480 V
Bus.volt.transf.
secondary 000V L This value corresponds to the secondary voltages of the PTs, which are di-
rectly connected to the control.

The secondary voltage is set here in V. This parameter is used to display the secon-
dary voltages on the control unit screen.
Parameter 15
Primary busbar voltage transformer 0.050 to 65.000 kV
Bus.volt.transf.
primary 00.000kV L This value corresponds to the primary voltages of the PTs.

The primary voltage is set here in kV. This parameter is used to display the primary
voltages on the control unit screen. In the case of measured voltages of 100 V
without a measurement transducer, 00.100 kV must be set here; for 400 V =
00.400 kV.

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WARNING
If the value of the following parameter is changed, the values of the following parameters have to be
checked:
• Threshold mains overvoltage (Parameter 198)
• Threshold mains undervoltage (Parameter 200)

Parameter 16
Secondary mains voltage transformer [1] 50 to 125 V; [4] 50 to 480 V
mains volt.trans
secondary 000V L This value corresponds to the secondary voltages of the PTs, which are di-
rectly connected to the control.

The secondary voltage is set here in V. This parameter is used to display the secon-
dary voltages on the control unit screen.
Parameter 17
Primary mains voltage transformer 0.050 to 65.000 kV
mains volt.trans
primary 00.000kV L This value corresponds to the primary voltages of the PTs.

The primary voltage is set here in kV. This parameter is used to display the primary
voltages on the control unit screen. In the case of measured voltages of 100 V
without a measurement transducer 00.100 kV must be set here, for 400 V =
00.400 kV.

Rated Voltage Values

Parameter 18
Generator setpoint voltage [1] 50 to 125 V; [4] 50- to 530 V
Gen.voltage
U set 000V L This value corresponds to the secondary voltages of the PTs, which are di-
rectly connected to the control.

This value of the voltage specifies the set point of the generator voltage for no-load
and isolated operation. The proportional entry of the parameter "Start voltage V
controller" (Parameter 61) refers to this value.
Parameter 19
Rated voltage [1] 50 to 125 V; [4] 50 to 480 V
Rated voltage in
system 000V The rated voltage (VL-L) is preset with this value.
The proportional entries of the following parameters refer to this value:
- Generator voltage monitoring
- Mains voltage monitoring
- Dead band voltage controller
- Synchronization dV max
- Dead bus GCB dV max

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Manual 37278A GCP-30 Series - Genset Control
Parameter 20
Voltage measuring/voltage monitoring Ph-neut./Ph-Ph
Volt.meas./mon.
---------------- Ph-neut/Ph-neutThe electrical system(generator, busbar, and mains) consists of
This parameter the three phase conductors and a neutral conductor. Thus the N
affects the display. lug (terminal 0) must be connected.
The phase-phase conductor voltages and the phase-neutral volt-
ages are shown in the display.
The voltage monitoring entries are referred to the phase-neutral
voltages (VL-N).

Ph-neut/Ph-Ph The electrical system(generator, busbar, and mains) consists of

the three phase conductors and a neutral conductor. Thus the N
lug (terminal 0) must be connected.
The phase-phase conductor voltages and the phase-neutral volt-
ages are shown in the display.
The voltage monitoring entries are referred to the phase-phase
voltages (VL-L).

Ph-Ph/Ph-Ph The electrical system(generator, busbar, and mains) consists only

of the three phase conductors (without neutral conductor). Thus
the N lug (terminal 0) cannot be connected.
Only the phase conductor voltages are shown in the display.
The voltage monitoring entries are referred to the phase-phase
voltages (VL-L).

NOTE
Terminal 0 must be isolated for the setting 'Ph-Ph/Ph-Ph' (voltage measuring Ph-Ph, voltage monitoring
Ph-Ph) since a contact voltage in inadmissible range may occur at terminal 0.

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Generator Current
Parameter 21
Generator CT's 10 to 7,000/{X} A
Current transf.
generator 0000/x The input of the CT ratio is necessary in order to display and control the actual val-
ues. The CT ratio must be selected so that, at maximum power, at least 60 % of the
CT nominal current flows. A lower percentage may lead to malfunctions. Addi-
tional inaccuracies in the control and monitoring functions also occur.

{x} = 1 A ...... Secondary current = 1 A at primary rated current = {X} A;

{x} = 5 A ...... Secondary rated current = 5 A at primary rated current = {X} A;
{X} ............... e.g. from the main series 10, 15, 20, 30, 50 or 75 A and the decimal
fractions and multiples of these or the corresponding secondary se-
ries with 25, 40 or 60 A.
Parameter 22
Generator power measurement singlephase / threephase
Power measuring
gen.------------ With regard to the measurement of generator power, single-phase or three-phase
measurement may be selected. If "single-phase power measurement" is set, the cur-
rent and the voltage in phase L1 are used for power measurement. If "three-phase
power measurement" is set, all three phase currents and the relevant voltages are
used for power measurement.
• single-phase power measurement: P = √3 × VL12 × IL1 × cosϕ.
• threephase power measurement:
P = VL1N × IL1 × cosϕ + VL2N × IL2 × cosϕ + VL3N × IL3 × cosϕ.

NOTE
With a positive real power, a positive real current flows in the "k-l" direction in the CT. Positive reactive
power means that with a positive effective direction, inductive reactive (lagging) current flows in the ef-
fective direction. If the control is connected to the terminals of a generator and if the outgoing circuits
of the CT facing the generator are connected to "k", the unit shows a positive real power when the
generator supplies real power. In this regard, note the explanations in manual 37238.

Parameter 23
Generator rated power 5 to 9,999 kW
Rated power
generator 0000kW Here the generator rated power is configured. The exact value of the generator
rated power is absolutely vital. Many measurement, control and monitoring func-
tions refer to this value (e.g. the percentage input for the power protection).
Parameter 24
Generator rated current 10 to 7,000 A
Rated current
generator 0000A Here the generator rated current is configured (only the percentage inputs for cur-
rent protection refer to this parameter).

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Manual 37278A GCP-30 Series - Genset Control

Mains Current/Mains Power Measurement

Mains power actual value measurement via analog input (Package XP, Option T701)

Measurement of the mains power actual value via an analog input T{x} [x = 1-7] is possible if at least one of the
analog inputs T{x} [x = 1-7] is a 0/4-20 input. Selection of the analog input is performed with the following pa-
rameters.
Parameter 25
Analog input P-mains: Selection OFF / T{x}
Analog in Pmains
OFF OFF ..............The mains interchange (import/export) real power actual value is
Package XP, Option T701 only calculated out of the measured mains current and the measured mains
voltage. The analog inputs can either be used as real power set point
values or as freely configurable alarm inputs. The following screens
of this function are not displayed.
T{x} ..............The mains interchange (import/export) real power actual value can
be transmitted to the control by a measuring transducer and can be
measured via the configured free scalable 0/4-20 mA input T{x}
({x} = 1-7) (other types of analog inputs cannot be used). The fol-
lowing screens of this function are displayed.

Note
Please note that the selected analog input T{x}
• Must be configured to OFF (Parameter 227) in chapter "Analog inputs" and that
this analog input
• Must not be configured as generator real power set point value (Parameter 84)
• T{x}: Dependent on the control model these analog inputs are included and pos-
sibly built as 0/4-20 mA type. If the controller being configured is an analog in-
put model, only 0/4-20 mA inputs may be used (only these inputs are displayed
for selection at this parameter).
• LeoPC1 is not a dynamic program and must be restarted after reconfiguration of a
control unit has been started so the changes are reflected in the graphical display
of the PC program.

Priority of the functions of the analog inputs

The following priorities are valid if more than one function has been assigned to a
analog input:
• Highest priority: Mains interchange (import/export) real power actual value
• Middle priority: Generator real power set point value
• Lowest priority: Measuring input as common analog value

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Parameter 26
Analog input P mains: Range 0 to 20 mA / 4 to 20 mA
Analog in Pmains
0-00mA The measuring range 0 to 20 mA or 4 to 20 mA is selected with this parameter. If
Package XP, Option T701 only
the range selected is 4 to 20 mA and the current is lower than 2 mA, a broken wire
alarm is issued.

Note
It is possible to adjust the display range of the mains interchange (import/export)
real power actual value. Thereto the wanted value must be entered and saved using
the Parameter 228 "name and unit" of the selected analog input (see chapter
"Analog inputs").

NOTE
For an import/export real power control application, ensure that the set point value selected is in the
middle of the measuring range. This will allow the controller dynamic to be used to its fullest capacity.

Parameter 27
Mains real power 0/4 mA [1] -9,990 to 9,990 kW; [4] -6,900 to 6,900 kW
Analog in Pmains
0% 0000kW The scaleable analog input is assigned a numerical value, which corresponds to the
Package XP, Option T701 only lowest input value Æ (0 % corresponds to -500 kW; 0 or 4 mA).

Parameter 28
Mains real power 20 mA [1] -9,990 to 9,990 kW; [4] -6,900 to 6,900 kW
Analog in Pmains
100% 0000kW The scaleable analog input is assigned a numerical value, which corresponds to the
Package XP, Option T701 only
highest input value Æ (100 % corresponds to 500 kW; 20 mA).

Mains current measurement via mains CT

Parameter 29
Mains current transformer 5 to 7,000/{X} A
Current transf.
mains 0000/x The input of the CT ratio is necessary in order to display and control the actual val-
ues. The CT ratio must be selected so that at maximum power the CT is at 60 % of
the converter's nominal current flow. A lower percentage may lead to malfunctions
due to loss of resolution. Additional inaccuracies in the control and monitoring
functions also occur.

{x} = 1 A ...... Secondary rated current = 1 A at primary rated current = {X} A;

{x} = 5 A ...... Secondary rated current = 5 A at primary rated current = {X} A;
{X} ............... e. g. from the main series 10, 15, 20, 30, 50 or 75 A and the decimal
fractions and multiples of these or the corresponding secondary se-
ries with 12.5, 25, 40 or 60 A.

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Manual 37278A GCP-30 Series - Genset Control

Parameter 30
LS 4 mode ON/OFF
LS 4 mode
ON ON ................The GCP is operating in LS 4 mode. The GCP controller expects
GPC-31/XP, CAN bus messages from an LS 4 and reacts accordingly. Addition-
Option L4 only ally the GCP controller transmits messages to the LS 4.
OFF ..............The control GCP operates as a normal genset control without LS 4
functionality.
Parameter 31
Rated power in the system 0 to 16,000 kW
Rated power in
system 00000kW The LS 4 transmits the current mains interchange real power in percent related to
GPC-31/XP, the rated power in the system to the GCP controller.
Option L4 only
Note
This configuration is valid only if parameter "LS 4 mode" is configured to ON.

ATTENTION
Since the LS 4 is only able to transmit a percentage value related to the rated
power, it is absolutely necessary to configure the rated power in all units (LS 4 and
GCP Parameter 23) to the same value.

Measurement Units

NOTE
LeoPC1 is not a dynamic program and must be restarted after reconfiguration of a control unit has
been started so the changes are reflected in the graphical display of the PC program.

Parameter 32
Analog inputs; temperature measurement in ... Celsius / Fahrenheit
Temperature in
---------------- The analog input for temperature measurement may be configured to display in °C
or °F. The configured engineering unit is displayed in the LC display or transmitted
via the CAN bus to other HMIs within the control system.

°C Ö °F °F Ö °C
( )
1 °F = [ value] °C × 1,8 °F °C + 32 °F 1 °C =
([value] °F − 32 °F)
1,8 °F °C

Parameter 33
Analog inputs; pressure measurement in ... bar / psi
Pressure in
---------------- The analog input for temperature measurement may be configured to display in bar
or phi. The configured engineering unit is displayed in the LC display or transmit-
ted via the CAN bus to other His within the control system.

bar Ö psi psi Ö bar

[ value] psi
1 psi = [ value] bar × 14,501 1 bar =
14,501

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Manual 37278A GCP-30 Series - Genset Control

Password Configuration

NOTE
Once a password has been set, it will not change unless a person alters that parameter with access to,
it regardless of how often the configuration mode is accessed. If an incorrect code number is entered,
the code level is set to CS0 and the control is therefore locked for external users.
The control unit automatically reverts to code level CS0 two hours after the entry of a password or if
the power supply is disconnected from the control unit. By entering the correct password, the corre-
sponding level may again be accessed.

Parameter 34
Code level 1 (Customer) 0000 to 9999
Define level 1
code 0000 This parameter is only accessible with code level 2 rights. After the password has
been set for this parameter, only the personnel who are assigned this password will
have access rights to this code level. When the CS1 (Customer) password is en-
tered, only select parameters may be accessed.
The default setting for this code level (CS) is CS1 = 0 0 0 1
Parameter 35
Code level 2 (Commissioner) 0000 to 9999
Define level 2
code 0000 This parameter is only accessible with code level 2 rights. After the password has
been set for this parameter, only the personnel who are assigned this password will
have access rights to this code level. When the CS1 (Customer) password is en-
tered, only select parameters may be accessed.
The default setting for this code level (CS) is CS2 = 0 0 0 2

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Manual 37278A GCP-30 Series - Genset Control

Controller
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
WARNING
Incorrect settings may lead to the errors in measurements and failures within the control unit resulting
in destruction of equipment or injury to personnel.

Parameter 36
Configuration of the controller YES/NO
Configure
controller YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Table Of Set Point Values

Automatic 1 Automatic 2 Control via External Specification

interface set point value of the set point value through
energized insignificant insignificant insignificant Set point 1 (Parameter 41)
de-energized energized OFF OFF Set point 2 (Parameter 42)
de-energized energized insignificant ON Externally via 0/4-20 mA input
(Package XP, Option T701; Para-
meter 84)
de-energized energized ON OFF Externally via interface
de-energized de-energized OFF OFF Standby only: Emergency power
(AMF)
Table 3-3: Set point value table

Analog Controller Outputs (Package Q, Option Q)

As an alternative to a three-position controller output, the control may also be equipped with an analog controller
output. If this option is selected, additional screens are displayed in the configuration mode. The analog PID con-
troller forms a closed-loop control loop with the controlled system (usually a first-order lag element). The pa-
rameters of the PID controller (proportional-action coefficient KPR, derivative-action time TV, and reset time Tn)
can be modified individually. The additional configuration screens are used for this purpose.
Influenciny
Kpr Tn Tv Tt Kp T1
quantity

PID controller Lag element (Tt) Controlled system (PT1)

Figure 3-1: Control loop

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Manual 37278A GCP-30 Series - Genset Control

If an abrupt disturbance variable is applied to the control loop, the reaction of the controlled system can be re-
corded at the output as a function of time (step response).

x
xm
Tolerance band

xd

disturbance variable

T rise Rise time

T sett Settling time
xm Overshoot
xd System deviation

0 Trise Tsett t/s

Figure 3-2: Step response (Example)

Various values can be obtained from the step response; these are required for adjusting the controller to its opti-
mum setting:

Rise time Trise: Period starting when the value of the control variable leaves a predefined tolerance range for the
control variable following a step in the disturbance variable or reference input variable and ending the first time
the value re-enters this range.

Settling time Tsett: Period starting when the value of the control variable leaves a predefined tolerance range for
the control variable following a step in the disturbance variable or reference input variable and ending when the
value re-enters this range permanently.

Overshoot xm: Highest transient set point value deviation during the transition from one steady-state condition to
a new steady-state condition following modification of the disturbance variable or reference input variable (xm Op-
timal ≤ 10 %).

System deviation xd: Permanent deviation from the final value (PID controller: xd = 0).

The values for KPR, Tn, and TV may be determined through various calculations from the values in the table
above. Through these calculations (calculating compensation, adjustment of the time constants, T-sum rule,
symmetric optimum, and/or Bode-diagram) it is possible to determine the optimal controller settings. Other set-
ting procedures and information may be obtained from current literature.

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CAUTION
The following must be observed regarding the controller setting:
• Ensure that the emergency shutdown system is operational.
• While determining the critical frequency, pay attention to the amplitude and frequency.
• If the two values change uncontrollably:

Î EMERGENCY SHUTDOWN Í

Initial state: The start position of the controller is determined using the initial state of the controller. If the con-
troller is switched off, the basic setting can be used to output a fixed controller position. If operation mode
MANUAL has been selected, the initial state signal is output only with the "START" push button. Even when
the analog controller is switched off, the initial state can be freely adjusted (e.g. the speed controller can be con-
trolled in a linear manner). On setting the "STOP" push button, the analog controller is switched off again.
Parameter 37
Initial frequency controller state 0 to 100 %
Initial state
Frequency = 000% The value input in this parameter represents analog controller output setting with
controller switched off. This value is also used as the initial state value.

General settings: The setting rule described below only serves as an example. It cannot be assumed that this is
the proper method of control for your system since every system behaves uniquely.

There are various methods of setting a controller. The setting rules of Ziegler and Nichols are explained below
(determination for abrupt disturbances on the system input); this setting method assumes a pure lag element con-
nected in series with a first-order lag system.

1. Controller operated as a P-only controller

(where Tn = ∞ [screen setting: Tn =0], TV = 0).
2. Increase gain KPR (P-gain) until KP = KPkrit when the control loop starts to oscillates continuously.

ATTENTION
If the engine starts to oscillate uncontrollably, carry out an emergency shutdown and alter the screen set-
ting accordingly.

3. At the same time, measure the critical cycle duration Tcrit

4. Set the parameters:

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Manual 37278A GCP-30 Series - Genset Control

PID-controller PI-controller
KPR = 0.6 × KPcrit KPR = 0.45 × KPcrit
Tn = 0.5 × Tcrit Tn = 0.83 × Tcrit
TV = 0.125 × Tcrit

Step response
Controller setting Controller setting Controller setting
Optimal (xm ≤ 10 %) Tcrit Incorrect
x x x

1 1 1

0 0 0
0 t/s 0 t/s 0 t/s

Figure 3-3: Step responds - governor configuration

Parameter 38
P-gain (KPR) Proportional-action coefficient 1 to 240
P-gain
Kpr = 000 The proportional-action coefficient KPR indicates the closed-loop control system
gain. By increasing the gain, the response is increased to permit larger corrections
to the variable to be controlled. The farther out of tolerance the process is the larger
the response action is to return the process to the tolerance band. If the gain is con-
figured too high, the result is excessive overshoot/undershoot of the desired value.
Parameter 39
Reset time (Tn) 0.2 to 60.0 s
Reset time
Tn = 00.0s The reset time Tn represents the I-component of the PID controller. The reset time
corrects for any offset (between set point and process variable) automatically over
time by shifting the proportioning band. Reset automatically changes the output re-
quirements until the process variable and the set point are the same. This parameter
permits the user to adjust how quickly the reset attempts to correct for any offset.
The reset time constant must be greater than the derivative time constant. If the re-
set time constant is too small, the engine will continually oscillate. If the reset time
constant is too large, the engine will take to long to settle at a steady state.
Parameter 40
Derivative-action time (TV) 0.00 to 6.00 s
Derivative time
Tv=0.00s The derivative-action time TV represents the D-component of the PID controller.
By increasing this parameter, the stability of the system is increased. The controller
will attempt to slow down the action of the actuator in an attempt to prevent exces-
sive overshoot or undershoot. Essentially this is the brake for the process. This por-
tion of the PID loop operates anywhere within the range of the process unlike reset.

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Real Power Controller, Set Point Values

These screens appear only if the generator real power controller has been configured to "ON" (Parameter 80).

NOTE
The fixed-value power control does not take into account the mains interchange point. If excess power
is generated, it will be exported to the mains. If there isn’t enough power generated, the deficit in
power will be imported from the mains.
Engine starting depends on whether an automatic start/stop operation has been enabled or disabled
(Parameter 101 or Parameter 102). If it has been disabled, the engine will always start.

Parameter 41
P controller: set point 1 C/I/E 0 to 6,900 kW
Power controller
Pset1 I0000kW Set point 1 is active when Automatic 1 (voltage applied to terminal 3) is enabled.
The mains interchange (import/export) real power is then controlled to the config-
ured value.
Real generator power is controlled to the entered value.
C ...................The letter C stands for fixed set point control (= base load). The gen-
erator will supply a constant level of power. The engine is always
started on activation of fixed set point power.
Real mains interch. (import/export) real power is controlled to the entered value.
I ....................The letter I stands for import power (power supplied by the mains).
The mains always supply the power set here as long as the minimum
and maximum generator real power are not exceeded (generator
power swings).
E ...................The letter E stands for export power (power supplied to the mains).
The power set here is always supplied to the mains as long as the
minimum and maximum generator real power are not exceeded (gen-
erator power swings).
Parameter 42
P controller: set point 2 C/I/E 0 to 6,900 kW
Power controller
Pset2 L0000kW Set point 2 is active when Automatic 2 (voltage applied to terminal 5) is enabled
and no external set point value (0/4 to 20 mA or interface) has been enabled. The
mains interchange (import/export) real power is controlled to the configured value.
Real generator power is controlled to the entered value.
C ...................The letter C stands for fixed set point control (= base load). The gen-
erator will supply a constant level of power. The engine is always
started on activation of fixed set point power.
Real mains interch. (import/export) real power is controlled to the entered value.
I ....................The letter I stands for import power (power supplied by the mains).
The mains always supply the power set here as long as the minimum
and maximum generator real power are not exceeded (generator
power swings).
E ...................The letter E stands for export power (power supplied to the mains).
The power set here is always supplied to the mains as long as the
minimum and maximum generator real power are not exceeded (gen-
erator power swings).

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Frequency Controller
Parameter 43
f controller: initial frequency 0 to 100 %
Initial state
Frequency 000% Analog controller output setting with disabled controller. This value is used as an
Package Q, Option Q only
initial state value when changing from a real power controller to a frequency con-
troller.
Parameter 44
f controller: activation ON/OFF
Freq.controller
ON ON................ The generator frequency is controlled. The generator frequency is
controlled through various methods depending on the task (isolated
operation / synchronization). The subsequent screens of this function
are displayed.
OFF.............. Control is not carried out, and the subsequent screens of this function
are not displayed.
Parameter 45
f controller: starting frequency 0.0 to 70.0 Hz
f-contr. active
at: 00.0Hz The frequency controller is activated when the generator frequency has exceeded
the value configured here. The undesired adjustment of the set point value of a
lower-level controller can therefore be overridden when starting the engine.
Parameter 46
f controller: delayed start 0 to 999 s
Delay time for
f-contr. 000s The time set in this parameter must expire before the frequency controller is en-
abled.
Parameter 47
f controller: set point ramp 1 to 50 Hz/s
Freq.controller
ramp 00Hz/s The different set point values are supplied to the controller via this ramp. The slope
of the ramp is used to alter the rate at which the controller modifies the set point
value. The faster the change in the set point is to be carried out, the greater the
value entered here must be.

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NOTE
The parameters for the speed/frequency controller influence the generator real power controller.

Parameter 48
f controller: type THREESTEP / ANALOG / PWM
F/P contr.type
---------------- THREESTEP The signal to control the speed/frequency/real power is output via
Package Q, Option Q only the relay manager to any configured relay. You can use the following
functions of the relay manager:
• function 114 = n+ / f+ / P+
• function 115 = n- / f- / P-
Please note to wire an external RC protection (manual 37239).
ANALOG.....A control is done via the analog controller outputs to terminals
8/9/10. Selection of the type of the signal (mA or V) to be utilized is
determined in Parameter 52. If a voltage output is desired, and
jumper must be installed between terminals 8/9 (see manual 37239).
PWM ............A control of speed/frequency/real power is carried out via a PWM
signal. The settings in the Parameter 53 "Level PWM" are to be used.
If a PWM output is desired, and jumper must be installed between
terminals 8/9 (see manual 37239).

Three-position controller (standard; Package Q, Option Q: setting 'THREESTEP')

Parameter 49
f controller: insensitivity 0.02 to 1.00 Hz
Freq.controller
deadband 0.00Hz Isolated operation The generator set point frequency is controlled in such a man-
ner that, in its adjusted state, the current value deviates from the gen-
erator set point frequency by this configured insensitivity at most.
Synchronization The generator frequency is controlled in such a manner that, in
its adjusted state, the differential frequency reaches the insensitivity
at most. The mains or busbar frequency are used as the set point
value.
Parameter 50
f controller: minimum frequency 10 to 250 ms
Freq.controller
time pulse>000ms This parameter is the minimum ON time for the relays to be able to respond in a re-
liable manner to the raise/lower signals. The shortest possible time must be set here
to ensure optimum control behavior.
Parameter 51
f controller: gain 0.1 to 99.9
Freq.controller
gain Kp 00.0 The gain factor Kp influences the operating time of the relays. By increasing the
number in this parameter, the operating time can be increased in the event of a cer-
tain control deviation.

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Analog controller output (Package Q, Option Q: setting 'ANALOG/PWM')

Parameter 52
f controller: output range see below
F/P contr.output
---------------- If Parameter 48 has been configured to "ANALOG" this parameter must be config-
Package Q, Option Q only ured to the appropriate type of analog controller. The range of the analog output is
configured here. To switch from a current to a voltage or PWM output a jumper
must be added to terminals 8/9. The ranges are listed below

Type Setting in above Jumper Range

configuration between Lower Upper
screen term. 8/9 level level
Current +/-20mA (+/-10V) no +/-20mA -20 mA +20 mA
+/-10mA (+/-5V) +/-10mA -10 mA +20 mA
0 to 10mA (0 to 5V) 0-10mA 0 mA 10 mA
0 to 20mA (0 to 10V) 0-20mA 0 mA 20 mA
4 to 20mA 4-20mA 4 mA 20 mA
10 to 0mA (5 to 0V) 10-0mA 10 mA 0 mA
20 to 0mA (10 to 0V) 20-0mA 20 mA 0 mA
20 to 4mA 20-4mA 20 mA 4 mA
Voltage +/-20mA (+/-10V) yes +/-10V -10 Vdc +10 Vdc
+/-10mA (+/-5V) +/-5V -5 Vdc +5 Vdc
+/-3V +/-3V -3 Vdc +3 Vdc
+/-2.5V +/-2.5V -2.5Vdc +2.5 Vdc
+/-1V +/-1V -1 Vdc +1 Vdc
0 to 10mA (0 to 5V) 0 to 5V 0 Vdc 5 Vdc
0.5V to 4.5V 0.5 to 4,5V 0.5 Vdc 4.5 Vdc
0 to 20mA (0 to 10V) 0 to 10V 0 Vdc 10 Vdc
10 to 0mA (5 to 0V) 5 to 0V 5 Vdc 0 Vdc
4.5V to 0.5V 4.5 to 0,5V 4.5 Vdc 0.5 Vdc
20 to 0mA (10 to 0V) 10 to 0V 10 Vdc 0 Vdc

NOTE
The control logic of the PWM signal can be inverted by following steps:
- Select "F/P contr.type" (Parameter 48) = ANALOG.
- Select with Parameter 52 "F/P contr.output" any of above inverted control outputs
(e.g. "10 to 0mA (5 to 0V)", "4.5V to 0.5V", "20 to 0mA (10 to 0V)" or "20 to 4mA").
- Back up one screen (Parameter 48; by pressing "Select" and "Cursor→" simultaneously).
- Select "F/P contr.type" (Parameter 48) = PWM.
Now the PWM signal is inverted.

Parameter 53
f controller: PWM level 3.0 to 10.0 V
Level PWM
---------------- If PWM has been selected in Parameter 52 the level of the PWM signal can be ad-
Package Q, Option Q only justed here.

Parameter 54
f controller: minimum value 0 to 100%
Stepper sign.frq
(min.) 000% This parameter permits the operator to clamp or limit the lower analog output
Package Q, Option Q only value.

Example: A 1 to 4V analog output is needed for the voltage controller to operate

properly. A jumper is installed on the terminals as described above and the analog
output of 0 to 5V is selected. The number to be configured in this parameter is de-
termined by dividing the desired lower limit by the range (1/5=0.20 or 20%). 20%
is the value to be configured in this parameter.

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Manual 37278A GCP-30 Series - Genset Control
Parameter 55
f controller: maximum value 0 to 100%
Stepper sign.frq
(max.) 000% This parameter permits the operator to clamp or limit the upper analog output
PackageQ, Option Q only value.

Example: A 1 to 4V analog output is needed for the voltage controller to operate

properly. A jumper is installed on the terminals as described above and the analog
output of 0 to 5V is selected. The number to be configured in this parameter is de-
termined by dividing the desired upper limit by the range (4/5=0.80 or 80%). 80%
is the value to be configured in this parameter.
Parameter 56
f controller:P gain 1 to 240
Freq.controller
gain Kpr 000 The proportional coefficient specifies the gain. By increasing the gain, the response
Package Q, Option Q only is increased to permit larger corrections to the variable to be controlled. The farther
out of tolerance the process is the larger the response action is to return the process
to the tolerance band. If the gain is configured too high, the result is excessive
overshoot/undershoot of the desired value.
Parameter 57
f controller: Reset time 0.0 to 60.0 s
Freq.controller
reset Tn 00.0s The reset time Tn identifies the I part of the PID controller. The reset time corrects
Package Q, Option Q only for any offset (between set point and process variable) automatically over time by
shifting the proportioning band. Reset automatically changes the output require-
ments until the process variable and the set point are the same. This parameter per-
mits the user to adjust how quickly the reset attempts to correct for any offset. The
reset time constant must be greater than the derivative time constant. If the reset
time constant is too small, the engine will continually oscillate. If the reset time
constant is too large, the engine will take to long to settle at a steady state.
Parameter 58
f controller: Derivative-action time 0.00 to 6.00 s
Freq.controller
derivat.Tv 0.00s The derivative-action time TV identifies the D part of the PID controller. By in-
Package Q, Option Q only creasing this parameter, the stability of the system is increased. The controller will
attempt to slow down the action of the actuator in an attempt to prevent excessive
overshoot or undershoot. Essentially this is the brake for the process. This portion
of the PID loop operates anywhere within the range of the process unlike reset.

Voltage Controller
Parameter 59
V controller: initial state 0 to 100 %
Starting point
voltage 000% Analog controller output setting with disabled controller. This value is used as an
Package Q, Option Q only initial value (e.g. when changing from a power factor controller to a voltage con-
troller).
Parameter 60
V controller: activation ON/OFF
Volt.controller
ON ON ................Generator voltage control is carried out. The subsequent screens of
this function are displayed.
OFF ..............Generator voltage control is not carried out, and the subsequent
screens of this function are not displayed.

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Parameter 61
V controller: start voltage 12.0 to 100.0 %
Start voltage
U control. 000V L This value refers to the generator set point voltage (Parameter 18).

The voltage controller will be enabled, once the generator voltage has exceeded
this value. This prevents an unintentional change of the set point of the voltage
regulator when starting the engine.
Parameter 62
V controller: delayed start 0 to 999 s
Delayed. Start
U contr. 000s The start voltage of the voltage controller must exceed the threshold value for at
least this period of time.

NOTE
The following parameters for the voltage controller influence the power factor cos ϕ controller.

Parameter 63
V controller: type THREESTEP / ANALOG
V/Q contr.type
---------------- THREESTEP The signal to control the voltage/power factor is output via the relay
Package Q, Option Q only manager to any configured relay. You can use the following func-
tions of the relay manager:
• function 116 = U+/Q+
• function 117 = U-/Q-
Please note to wire an external RC protection (manual 37239).
ANALOG .... Control is performed via the analog controller outputs to terminals
11/12/13. The type of signal (mA or V) to be utilized may be selected
in Parameter 67 and along with the instructions on the installation of
an external jumper between terminals.

Three-position controller (standard; Package Q, Option Q: setting 'THREESTEP')

Parameter 64
V controller: insensitivity 00.1 to 15.0 %
Volt.controller
dead band 00.0% L This value refers to the parameter "rated voltage in system" (Parameter 19).

Isolated operation The generator set point voltage is controlled in such a manner
that the current value will deviate from the generator set point volt-
age by no more than the configured insensitivity (dead band).
Synchronization The generator voltage is controlled in such a manner that the dif-
ferential voltage will not exceed the configured insensitivity (dead
band). The mains or busbar voltage are used as the set point value.
Parameter 65
V controller: minimum voltage 20 to 250 ms
Volt.controller
time pulse>000ms This parameter is the minimum ON time for the relays to be able to respond in a re-
liable manner to the raise/lower signals. The shortest possible time must be set here
to ensure optimum control behavior.

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Parameter 66
V controller: gain 0.1 to 99.9
Volt.controller
gain Kp 00.0 The gain factor Kp influences the operating time of the relays. By increasing the
gain, the response is increased to permit larger corrections to the variable to be con-
trolled. The farther out of tolerance the process is the larger the response action is
to return the process to the tolerance band. If the gain is configured too high, the
result is excessive overshoot/undershoot of the desired value.

Analog controller (Package Q, Option Q: setting 'ANALOG')

Parameter 67
V controller: range see below
V/Q contr.output
---------------- If the Parameter 63 has been configured to "ANALOG" this parameter must be
Package Q, Option Q only configured to the appropriate type of analog controller. The range of the analog
output is configured here. If a current analog output is to be utilized do not install a
jumper between terminals 11/12. If a voltage analog output is to be utilized, a
jumper must be installed between terminals 11/12. The following analog output
ranges may be used with this controller.

Type Setting in above Jumper Range

configuration between Lower Upper
screen term. 11/12 level level
Current +/-20mA (+/-10V) no +/-20mA -20 mA +20 mA
+/-10mA (+/-5V) +/-10mA -10 mA +20 mA
0 to 10mA (0 to 5V) 0-10mA 0 mA 10 mA
0 to 20mA (0 to 10V) 0-20mA 0 mA 20 mA
4 to 20mA 4-20mA 4 mA 20 mA
10 to 0mA (5 to 0V) 10-0mA 10 mA 0 mA
20 to 0mA (10 to 0V) 20-0mA 20 mA 0 mA
20 to 4mA 20-4mA 20 mA 4 mA
Voltage +/-20mA (+/-10V) yes +/-10V -10 Vdc +10 Vdc
+/-10mA (+/-5V) +/-5V -5 Vdc +5 Vdc
+/-3V +/-3V -3 Vdc +3 Vdc
+/-2.5V +/-2.5V -2.5Vdc +2.5 Vdc
+/-1V +/-1V -1 Vdc +1 Vdc
0 to 10mA (0 to 5V) 0 to 5V 0 Vdc 5 Vdc
0.5V to 4.5V 0.5 to 4.5V 0.5 Vdc 4.5 Vdc
0 to 20mA (0 to 10V) 0 to 10V 0 Vdc 10 Vdc
10 to 0mA (5 to 0V) 5 to 0V 5 Vdc 0 Vdc
4.5V to 0.5V 4.5 to 0.5V 4.5 Vdc 0.5 Vdc
20 to 0mA (10 to 0V) 10 to 0V 10 Vdc 0 Vdc

Parameter 68
V controller: minimum value 0 to 100%
Stepper sign.vol
(min.) 000% This parameter permits the operator to clamp or limit the lower analog output
Package Q, Option Q only value.

Example: A 1 to 4V analog output is needed for the voltage controller to operate

properly. A jumper is installed on the terminals as described above and the analog
output of 0 to 5V is selected. The number to be configured in this parameter is de-
termined by dividing the desired lower limit by the range (1/5=0.20 or 20%). 20%
is the value to be configured in this parameter.

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Parameter 69
V controller: maximum value 0 to 100%
Stepper sign.vol
(max.) 000% This parameter permits the operator to clamp or limit the upper analog output
Package Q, Option Q only
value.

Example: A 1 to 4V analog output is needed for the voltage controller to operate

properly. A jumper is installed on the terminals as described above and the analog
output of 0 to 5V is selected. The number to be configured in this parameter is de-
termined by dividing the desired upper limit by the range (4/5=0.80 or 80%). 80%
is the value to be configured in this parameter.
Parameter 70
V controller: P-gain 1 to 240
Volt.controller
gain Kpr 000 The proportional coefficient specifies the gain. By increasing the gain, the response
Package Q, Option Q only is increased to permit larger corrections to the variable to be controlled. The farther
out of tolerance the process is the larger the response action is to return the process
to the tolerance band. If the gain is configured too high, the result is excessive
overshoot/undershoot of the desired value.
Parameter 71
V controller: reset time 0.0 to 60.0 s
Volt.controller
reset Tn 00.0s The reset time Tn identifies the I portion of the PID loop. By increasing this pa-
Package Q, Option Q only rameter, the stability of the system is increased. The controller will attempt to slow
down the action of the actuator in an attempt to prevent excessive overshoot or un-
dershoot. Essentially this is the brake for the process. This portion of the PID loop
operates anywhere within the range of the process unlike reset.
Parameter 72
V controller: derivative-action time 0.00 to 6.00 s
Volt.controller
derivat.Tv 0.00s The derivative-action time TV identifies the D part of the PID controller. By in-
Package Q, Option Q only creasing this parameter, the stability of the system is increased. The controller will
attempt to slow down the action of the actuator in an attempt to prevent excessive
overshoot or undershoot. Essentially this is the brake for the process. This portion
of the PID loop operates anywhere within the range of the process unlike reset.

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Power Factor cos ϕ Controller

Parameter 73
cos ϕ controller: activation ON/OFF
Pow.fact.contr.
ON ON ................In a mains parallel operation automatic control of the power factor is
carried out. If there are excessively low currents (secondary current
less than 5 % Irated) the power factor cannot be accurately measured.
In order to prevent power swings, the controller automatically locks
the power factor at a set value. The subsequent screens of this func-
tion are displayed.
OFF ..............Power factor control is not performed, and the subsequent screens of
this function are not displayed.
Parameter 74
cos ϕ controller: set point i0.70 to 1.00 to c0.70
Pow.fact.contr.
setpoint 0.00 The desired power factor may be configured here so that the reactive power is
regulated in the system. The designations "i" and "c" stand for inductive/lagging
(generator overexcited) and capacitive/leading (generator underexcited) reactive
power. This set point is active only in mains parallel operation.

NOTE
Please note the settings for the voltage controller in chapter "Voltage Controller" at page 38. The set-
tings there for the voltage controller also influence the cos ϕ controller.

Three-position controller (standard; Package Q, Option Q: setting 'THREESTEP')

Parameter 75
cos ϕ controller: insensitivity 0.5 to 25.0 %
Pow.fact.contr.
dead band 00.0% The control automatically calculates the amount of reactive power which belongs to
the power factor ϕsetpoint. In a mains parallel operation, the reactive power is con-
trolled in such a manner in its regulated state that the actual value does not deviate
from the generator power factor cos ϕ set point value by more than the percentage
value of the sensitivity setting. In this case, the percentage value refers to the gen-
erator rated power (Parameter 23).
Parameter 76
cos ϕ controller: gain 0.1 to 99.9
Pow.fact.contr.
gain Kp 00.0 The gain factor Kp influences the operating time of the relays. By increasing the
gain, the response is increased to permit larger corrections to the variable to be con-
trolled. The farther out of tolerance the process is the larger the response action is
to return the process to the tolerance band. If the gain is configured too high, the
result is excessive overshoot/undershoot of the desired value.

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Analog controller (Package Q, Option Q: setting 'ANALOG')

Parameter 77
cos ϕ controller:P-gain 1 to 240
Pow.fact.contr.
gain Kpr 000 The proportional coefficient specifies the gain. By increasing the gain, the response
Package Q, Option Q only is increased to permit larger corrections to the variable to be controlled. The farther
out of tolerance the process is the larger the response action is to return the process
to the tolerance band. If the gain is configured too high, the result is excessive
overshoot/undershoot of the desired value.
Parameter 78
cos ϕ controller:reset time 0.0 to 60.0 s
Pow.fact.contr.
reset Tn 00.0s The reset time Tn identifies the I portion of the PID loop. The reset time corrects for
Package Q, Option Q only any offset (between set point and process variable) automatically over time by
shifting the proportioning band. Reset automatically changes the output require-
ments until the process variable and the set point are the same. This parameter per-
mits the user to adjust how quickly the reset attempts to correct for any offset. The
reset time constant must be greater than the derivative time constant. If the reset
time constant is too small, the engine will continually oscillate. If the reset time
constant is too large, the engine will take to long to settle at a steady state.
Parameter 79
cos ϕ controller:derivative-action time 0.00 to 6.00 s
Pow.fact.contr.
derivat.Tv 0.00s The derivative-action time TV identifies the D part of the PID controller. By in-
Package Q, Option Q only creasing this parameter, the stability of the system is increased. The controller will
attempt to slow down the action of the actuator in an attempt to prevent excessive
overshoot or undershoot. Essentially this is the brake for the process. This portion
of the PID loop operates anywhere within the range of the process unlike reset.

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Real Power Controller

Parameter 80
P controller: activation ON/OFF
Power controller
ON ON ................In mains parallel operation the real power is automatically adjusted
to the pre-selected set point (Parameter 41 or Parameter 42) when the
real power controller is configured ON. The subsequent screens of
this function are displayed.
OFF ..............Real power control is not performed, and the subsequent screens of
this function are not displayed.
Parameter 81
P controller: set point ramp %/s 0 to 100 %/s
power controller
ramp 000%/s Different set point values are supplied to the controller through this ramp in a per-
cent per second reference to the generator rated power (Parameter 23). The slope of
the ramp is used to determine the rate at which the controller modifies the set point
value. The more rapidly the change in the set point is to be carried out, the greater
this value has to be.

Power Limitation
Parameter 82
P controller: maximum power limitation 10 to 120 %
Power limit
P max. 000% If the maximum real generator load is to be limited, a percentage based on the rated
generator power (Parameter 23) must entered here. The controller adjusts the gen-
erator in such a manner that this value is not exceeded. This parameter limits the set
point of the real power controller when the generator is in a mains parallel opera-
tion.
Parameter 83
P controller: minimum power limitation 0 to 50 %
Power limit
P min. 00% If the minimum real generator load is to be limited, a percentage based on the rated
generator power (Parameter 23) must entered here, in accordance with the specified
setting limits. The controller adjusts the generator so that the real power generated
does not fall below this limit. This parameter is ignored in the case of fixed-set
point control or isolated operation.

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External setpoint value (Package XP, Option T701)

The generator real power set point value may be monitored via an analog input T{x} [x = 1 to 7] if one of the
analog inputs T{x} [x = 1 to 7] is utilized as a 0/4 to 20 mA input. The selection of the analog input is done using
the following parameters.
Parameter 84
P set point value: external set point value OFF / T{x}
Power setpoint
external OFF OFF.............. If this parameter is configured to "OFF" a generator real power set
Package XP, Option T701 only point value is not monitored via the 0/4 to 20 mA input to the con-
trol. The analog inputs can be used either as a mains interchange (im-
port/export) real power actual value or as freely configurable alarm
inputs. If terminal 5 is utilized, the internal set point value 2 "Pset2"
(Parameter 42) is used as set point value. The subsequent screens of
this function are not displayed.
T{x} .............. The generator real power set point value is monitored by the control
via an external signal using the 0/4 to 20 mA inputs (T{x}, {x) = 1 to
7). If terminal 5 is utilized, the internal set point value 2 "Pset2" (Para-
meter 42) is used as set point value. The subsequent screens of this
function are displayed.

Note
Please note the following if analog input T{x} has been selected:
• Parameter 227 in chapter "Analog inputs" must be configured as OFF
• Parameter 25) in chapter "Measuring" must not be configured as mains inter-
change real power actual value.
• T{x}: Depending on the configuration of the control it is possible that various
analog inputs other than the 0/4 to 20mA type may be used. For this function,
only 0/4 to 20mA may be used.
• LeoPC1 is not a dynamic program and must be restarted after reconfiguration of a
control unit has been started so the changes are reflected in the graphical display
of the PC program.

Priority of the functions of the analog inputs

The following priority is valid if more than one function has been assigned to a
analog input:
• Highest priority: Mains interchange real power actual value measurement
• Middle priority: Real power set point value
• Lowest priority: Measuring input as common analog value

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Parameter 85
P set point value: range 0 to 20 / 4 to 20 mA
Analog input
0-00mA The analog input of the real power controller can be switched here between
Package XP, Option T701 only
0 to 20 mA and 4 to 20 mA depending on the set point source.
0 to 20 mA ....Minimum value of the set point at 0 mA; maximum value at 20 mA.
4 to 20 mA ....Minimum value of the set point at 4 mA; maximum value at 20 mA.

CAUTION
The interchange real power set point may also be scaled. When controlling the interchange power, it is
vital to ensure that C power is not entered simultaneously with I or E power when scaling the external
analog input.
External setpoint 0/4 mA C I E I E
External setpoint 20 mA C I E E I

Parameter 86
P set point value: scaling minimum value C /I/E 0 to 9,999 kW
Ext.setpoint
0mA 0000kW The minimum value of the generator real power is defined here (e. g. 0 kW).
Package XP, Option T701 only

Parameter 87
P set point value: scaling maximum value C/I/E 0 to 9,999 kW
Ext.setpoint
20mA 0000kW The maximum value of the generator real power is defined here (e. g. 100 kW).
Package XP, Option T701 only

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Three-position controller (standard; Package Q, Option Q: setting 'THREESTEP')

Parameter 88
P controller: insensitivity 0.1-25.0 %
Power controller
dead band 00.0% In a mains parallel operation, the real power is controlled in such a manner in its
regulated state that the actual value does not deviate from the generator real power
set point value by more than the percentage value of the sensitivity setting. In this
case, the percentage value refers to the generator rated power (Parameter 23).
Parameter 89
P controller: gain factor 0.1-99.9
Power controller
gain Kp 00.0 The gain factor Kp influences the operating time of the relays. By increasing the
gain, the response is increased to permit larger corrections to the variable to be con-
trolled. The farther out of tolerance the process is the larger the response action is
to return the process to the tolerance band. If the gain is configured too high, the
result is excessive overshoot/undershoot of the desired value.
Parameter 90
P controller: reduce sensitivity 1.0-9.9
Powercontr. dead
band ratio *0.0 If no adjusting pulses have been output for at least 5 seconds after the last adjust-
ment of the controller, the insensitivity is reduced by this factor.
For example: In the case of an insensitivity of 2.5 % and a factor of 2.0 the insensitivity is increased after
5 s to 5.0 %. If the control deviation subsequently exceeds 5.0 %, again, the controller's original sensitiv-
ity is automatically reset (2.5 %). This input can be used, in the event of small control deviations, to
avoid unnecessarily frequent actuation processes, thereby protecting the voltage regulator.

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Analog controller (Package Q, Option Q: setting 'ANALOG')

Parameter 91
P controller: P gain 1-240
Power controller
gain Kpr 000 The proportional coefficient specifies the gain. By increasing the gain, the response
Package Q, Option Q only is increased to permit larger corrections to the variable to be controlled. The farther
out of tolerance the process is the larger the response action is to return the process
to the tolerance band. If the gain is configured too high, the result is excessive
overshoot/undershoot of the desired value.
Parameter 92
P controller: reset time 0.0-60.0 s
Power controller
reset Tn 00.0s The reset time Tn identifies the I portion of the PID loop. The reset time corrects for
Package Q, Option Q only any offset (between set point and process variable) automatically over time by
shifting the proportioning band. Reset automatically changes the output require-
ments until the process variable and the set point are the same. This parameter per-
mits the user to adjust how quickly the reset attempts to correct for any offset. The
reset time constant must be greater than the derivative time constant. If the reset
time constant is too small, the engine will continually oscillate. If the reset time
constant is too large, the engine will take to long to settle at a steady state.
Parameter 93
P controller: derivative-action time 0.00-6.00 s
Power controller
derivat.Tv 0.00s The derivative action time TV identifies the D part of the PID controller. By in-
Package Q, Option Q only creasing this parameter, the stability of the system is increased. The controller will
attempt to slow down the action of the actuator in an attempt to prevent excessive
overshoot or undershoot. Essentially this is the brake for the process. This portion
of the PID loop operates anywhere within the range of the process unlike reset.

Partial load lead

Parameter 94
P controller: part-load lead limit 5-110 %
Warm up load
limit value 000% If the engine requires a warm-up period, a lower fixed load value power may be en-
tered for the engine warm-up period. The setting for the generator load that is to be
utilized during this warm-up phase is made with this parameter. The fixed load is a
percentage of the generator rated power (Parameter 23).
Parameter 95
P controller: part-load lead time 0-600 s
Warm up load
time 000s The length of the warm-up period with part-load following the initial closure of the
GCB in mains parallel operation is configured here. If an engine warm-up period is
not desired, this parameter must be set to zero.

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Load And/Or Var Sharing

Control ensures that under every operating condition (mains parallel operation, isolated operation in parallel with
other gensets, or reverse synchronization of the busbar to the mains) the real power (in reference to the relevant
rated load) is evenly shared between the generators operating in parallel to the busbar. Those controls that are in
the TEST or AUTOMATIC operation mode are load and/or var sharing as long as a start command has been is-
sued and no alarms are present that will result in a system shutdown.

Operating in mains parallel with mains interchange (import/export) real power control: Each controller
participating in load/var sharing controls the generator to which it is assigned so that the real power set point at
the mains interchange (import/export) real power remains constant. All controls are interlinked via a CAN bus so
that any deviation in real power (generator power) may be determined for each generator. This control variable is
taken into consideration when controlling the interchange load. The priority that the primary and the secondary
control variables are processed may be set via the active load-sharing factor. In a controlled state the configured
real power flows at the mains interchange point, and the total real power is divided equally among the generators
that are connected to the same CAN bus and are producing the power. If a generator has been configured to pro-
duce constant power (C=baseload), the generator is removed from the distribution control process.

Isolated operation in parallel: Each controller involved in load/var sharing influences the generator to which it
is assigned in such a manner that the rated frequency that has been configured remains constant. All controls are
connected to a CAN bus through which each generator is monitored for any deviation in generator real power.
This control variable is taken into consideration on controlling the frequency. The priority that the primary and
secondary variable are processed, can be set via the active load-sharing factor. The isolated system has the con-
figured rated frequency and the total real power (in reference to the relevant rated power) is divided equally
among the generators that are connected to the same CAN bus and are producing the power.

Reverse synchronization of the busbar to the mains: Distribution is carried out according to the type of iso-
lated operation. However, the set point value for the bus frequency is determined by the mains frequency (+/-
0.1 Hz). The relay issues "Command: close GCB" to all controls so they may be paralleled.

Prerequisites: The rated system frequencies, the start/stop parameters, and the breaker logics must all be set to
the same values for all controls participating in the distribution control.

Description of the interface for distribution control: Distribution control is based on a multi-master-capable
bus between the controls. This structure enables the parallel operation of up to 14 gensets.

The following must be noted to ensure proper operation:

• The maximum bus length must not exceed 250 meters (820 feet).
• The bus must be terminated at each end with terminating resistors that correspond to the wave impedance of
the bus cable (approx. 80-120 Ω).
• The bus must be of a linear structure. Dead-end feeders are not permissible.
• Shielded "Twister-Pairs" are recommended for use as the bus cable (e.g.: Lappkabel Unitronic LIYCY (TP)
2×2×0.25, UNITRONIC-Bus LD 2×2×0.22).
• The bus cable must not be routed in the vicinity of heavy current power lines.

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Wiring diagram

Termination Termination
resistor resistor
CAN-H

GND

CAN-H

GND
CAN-H

CAN-H

GND
CAN-L

CAN-L

CAN-L

CAN-L
Termination

Termination
Note:
The termination has to be
performed with a resisitance,
which corresponds to the
impedance of the used cable
(e.g 120 Ohms)

CAN bus CAN bus CAN bus

Figure 3-4: CAN bus load/var sharing, wiring diagram

Diagram of load/var sharing via the CAN bus: The parameter "Active load sharing factor" determines if and
how a generator carries out real power or frequency control when paralleled with other generators in an isolated
operation. This parameter is defined as a percentage. In figure below 10 % means increased real power control
and 99 % increased frequency control. This parameter must be configured individually for each generator.

In the illustrated control system, it must be noted that each control calculates the mean utilization factor of all
controls from the data transmitted via the CAN bus and then compares this with its own utilization factor. The
utilization factor is compared with the reference variable and results in a new reference variable. Frequency and
real power control are carried out simultaneously in these controls (corresponding to the reference variable).

Frequency control is carried out via the measured voltage/frequency of the voltage system. The Pickup is used
merely for monitoring functions, or is available as a current control value to the secondary controller.

f actual [Hz]

P actual [kW]
f set

n actual [min-1]
Leading value 10..99 [%]

10 % = only P control
99 % = only f control
Σ P nominal (via CAN)

P diff [%]
Calculation

P actual [kW]
P Utilization factor of this engine [%]
Σ P actual (via CAN)
Calculation
P nominal [kW] 2001-08-06 Leistungsverteilung Blockschaltbild.skf

Figure 3-5: CAN bus load/var sharing, diagram

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Parameter 96
kW/kvar sharing: load sharing ON/OFF
Active power
load-share ON ON................ Real power is shared between multiple generators operating in paral-
lel. The generator outputs are distributed depending on the config-
ured value. The subsequent screens of this function are displayed.
OFF.............. No real power sharing is carried out, and the subsequent screens of
this function are not displayed.
Parameter 97
kW/kvar sharing: reference variable kW 10 to 99 %
Act. load share
factor 00% Increasing the load share factor increases the priority of the primary control vari-
able to the control. The lower the factor is configured, the greater the priority of the
secondary control variable.

Definition "Primary control variable"

• Isolated operation = frequency
• Mains parallel operation = real power (at the mains interchange point)

Definition "Secondary control variable"

• Isolated operation = real power related to the other generators
• Mains parallel operation = real power related to the other generators

The smaller this factor the higher the priority to equally share the load to all genera-
tors.
Parameter 98
kW/kvar sharing: var sharing ON/OFF
Reactive power
load share ON ON................ Reactive power is shared between multiple generators operating in
parallel. The generator outputs are distributed depending on the con-
figured value. The subsequent screens of this function are displayed.
OFF.............. No reactive load sharing is carried out, and the subsequent screens of
this function are not displayed.
Parameter 99
kW/kvar sharing: reference variable kvar 10 to 99 %
React.load share
factor 00% Increasing the load share factor increases the priority of the primary control vari-
able (the voltage) to the control. The lower the factor is configured, the greater the
priority of the secondary control variable (generator reactive power). Var sharing is
activated during isolated parallel operating only.

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Automatic
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 100
Configuration of automatic YES/NO
Configure
automatic YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Load Management

NOTE
To enable the automatic start/stop function, Parameter 96 “Active power load-share” must be config-
ured to “ON”, regardless if additional generators are available for load sharing.

NOTE
To carry out an automatic start/stop of the engine, all participating controls must be configured with
the identical rated power (Parameter 23).

Load-dependent start/stop in mains parallel operation

Parameter 101
Load dependent start/stop: enable via terminal 3 ON/OFF
Loadd.start/stop
at ter.3 ON ON ................If the control input "Automatic 1" (terminal 3) is enabled, an auto-
matic start/stop is performed on the basis of the generator set point
real power 1 (Parameter 41). If terminal 5 is enabled simultaneously,
terminal 3 has priority. The subsequent screens of this function are
displayed.
OFF ..............No automatic start/stop is performed. The adjustment of the pre-
specified set point value is always carried out. The subsequent
screens of this function are not displayed.
Parameter 102
Load dependent start/stop: enable via terminal 5 ON/OFF
Loadd.start/stop
at ter.5 ON ON ................If the control input "Automatic 2" (terminal 5) is enabled, an auto-
matic start/stop is performed on the basis of the generator set point
real power 2 (Parameter 42). If terminal 3 is enabled simultaneously,
terminal 3 has priority. The subsequent screens of this function are
displayed.
OFF ..............No automatic start/stop is performed. The adjustment of the pre-
specified set point value is always carried out. The subsequent
screens of this function are not displayed.

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Single generator in mains parallel operation

The load-dependent start/stop function is activated when all of the following conditions have been met:
• the operation mode AUTOMATIC has been selected
• interchange power control (import/export power) has been activated by one of the two discrete inputs ("Auto-
matic 1" or "Automatic 2") (" I " or " E " power)
• one or both parameters "Load-dependent start/stop on terminal 3/5" (Parameter 101 or Parameter 102) has
been configured to "ON".
Parameter 103
Load dependent start/stop: generator minimum set point power 0 to 6,900 kW
Minimum load
generator 0000kW For the mains interchange (import/export) real power control to function, a genera-
tor power set point value is required. In many cases, starting of the engine should
only performed once a specific generator power set point value has been reached in
order to operate the generator with a reasonable degree of efficiency. For example:
At least 40 kW of real power has to be supplied by 80 kW generator before the en-
gine is to be started.
Parameter 104
Load dependent start/stop: start delay 0 to 999 s
Add-on delay
mains oper. 000s Starting may be delayed even if the generator start power limit has been reached. In
order to avoid starting the engine in the event of short-term load swings, a start de-
lay may be entered here in seconds. The start power (Parameter 103) must therefore
be present without interruption during this period of time, in order to ensure that
the engine is started. If the load drops below the set start power limit before the
time configured here expires, the counter is reset to 0.
Parameter 105
Load dependent start/stop: stop delay 0 to 999 s
Shed-off delay
mains oper. 000s Stopping can be delayed even if the generator stop power limit has been reached. In
order to avoid shutting the engine down in the event of short-term load swings, a
stop delay may be entered here in seconds. The stop power (Parameter 106) must
therefore be present without interruption during this period of time, in order to en-
sure that the engine is stopped. If the load rises above the set stop power limit be-
fore the time configured here expires, the counter is reset to 0.

Stopping hysteresis

NOTE
The following Parameter 106 is used to determine stopping hysteresis for single gensets in mains par-
allel operation, for generators connected to other generators in mains parallel operation, and in iso-
lated operation in parallel with other gensets. However, the parameter appears only once in this text.

Parameter 106
Load dependent start/stop: hysteresis 0 to 9,999 kW
Hysteresis add-.
on/off op.0000kW The stop power value of the generator is determined via a hysteresis. The hysteresis
is used to prevent the engine continuously starting and shutting down again.

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Mains parallel operation (mains interchange (import/export) real power control with one generator)
General

Case 1: Start of the engine

If [PNT.Setpoint - PNT.actual > Pstart] the engine starts. (a)

Case 2: Stop of the engine

If [PNT.setpoint - PNT.actual + PGN.actual.tot < Pstart - PHyst] the engine stops. (b)

Example

The power supplied by the mains, which is to be adjusted, is 50 kW. This value is entered into the set point value
screen (see chapter "Controller") as "I0050kW". The generator should be operated with at least 30 kW.

PNT.setpoint = -50 kW Incoming/import power has to be entered negative, output/export power positive.
Pstar = 30 kW The minimum power requested by the generator.
PHyst = 10 kW The power hysteresis for stopping.

When inserted into the above-mentioned formula, this means:

Case 1: The engine starts with the following import mains power: If formula (a) is inverted, this results in

[PNT.actual < PNT.setpoint - Pstart] ⇒ PNT.actual< - 50 kW - 30 kW = -80 kW ⇒ "I0080 kW"

The power supplied by the mains must be at least 80 kW in order for the engine to start. This is then oper-
ated with a minimum power of 30 kW.

Case 2: The engine stops if it has to supply less than the minimum power minus hysteresis. This is the case with
the following generator power: If formula (b) is inverted, this results in

[PGN.actual = stop power engine < - PNT.setpoint+ PNT.actual + Pstart - Physt].

[PGN.actual < - 50 kW + 50 kW + 30 kW - 10 kW = 20 kW.

If the generator falls below its minimum power minus hysteresis, the engine is stopped. The power im-
ported from the mains therefore remains at the value that is to be controlled until just prior to stopping.
Following stopping, the power supplied by the mains increases to 70 kW.

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Load sharing with other generators in mains parallel operation

The load-dependent start/stop function is activated for every control when the following criteria has been met:
• the operation mode AUTOMATIC has been selected
• interchange power control (import/export power) has been activated by one of the two discrete inputs ("Auto-
matic 1" or "Automatic 2") (" E " or " I " power)
• all parameters, such as start/stop power, start/stop delays, and selected set point values are identical for all
generators involved
• one or both parameters "Load-dependent stop/start on terminal 3/5" has been configured to "ON"
• the parameter "Load sharing" or "var sharing" have been configured to "O N"
• the same rated power is available from all generators.

NOTE
The following Parameter 107 only applies if more than one generator is to be started in mains parallel
operation. The first engine is started as described under single generator in mains parallel operation
on the basis of the minimum generator power.

Parameter 107
Load dependent start/stop: reserve power 0 to 9,999 kW
Reserve power
mains op. 0000kW Starting of an additional engine is determined via the reserve power. The reserve
power results from the currently available total generator rated real power (genera-
tor rated real power × number of closed GCB's) and the currently available total
generator actual real power. If the currently available total generator actual real
power is subtracted from the currently available total generator rated real power,
this results in the system's reserve power. If negative deviation from this reserve
power occurs, the next engine is started.

Currently available total generator rated real power

- Currently available total generator actual real power
= Reserve power
Parameter 108
Load dependent start/stop: priority of generators 0 to 14
Priority of
generators 0 This priority specifies the sequence in which the individual engines are started. The
control with the lowest configured number has the highest priority. This engine is
the first to be started and the last to be stopped. In the event of identical priorities,
the starting sequence is determined by the operating hours. In this case, the engine
with the lowest operating hours takes priority. In the event of the same number of
operating hours, the engine with the lowest control number (generator number,
Parameter 4) is started.

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Mains parallel operation(mains interchange (import/export) real power control with several generators)
General

Case 3: Start of the first engine

All GCBs are open.
If [PNT.setpoint - PNT.actual > Pstart] the first engine is started. (c)

Case 4: Starting of additional engines

At least one GCB in the group is closed.
If [PGN.actual.tot + Preserve.parallel > Prated.tot] the next engine is started. (d)

Case 5: Stopping
At least two GCB's in the group are closed.
If [PGN.act.tot + Preserve.parallel + Physt + Prated < Prated.tot] a engine is stopped. (e)

Case 6: Stopping of the last engine

Only one GCB in the group is closed.
If [PNT.setpoint - PNT.actual + PGN.actual.tot < Pstart - Physt] the last engine is stopped. (f)

Example

The real power supplied by the mains, which is to be adjusted, is 0 kW. This value is entered as the set point
value (see chapter "Controllers") as "I0000kW" (corresponds to "E0000kW"). The reserve power in the system
should be 40 kW. The power hysteresis should be 20 kW. Three generators are to be operated within the group.
The rated power of a generator is 200 kW. The minimum power of a generator should be 30 kW.

PRated = 200 kW Rated power of a generator.

PRated.tot Total of the rated power values of the gensets with closed GCB's.
PStart.tot = 30 kW Minimum power of a generator.
PNT.actual Current mains power.
PNT.setpoint = B0000 kW Set point mains power
PReserve.Parallel = 40 kW Reserve power in mains parallel operation
PHyst = 20 kW Power hysteresis
No. GCB Number of closed GCB's

Case 3: Power supplied by the mains, with which the first engine is started:

PNT.actual < PNT.setpoint - Pstart.gen.

PNT.actual < 0 kW - 30 kW = -30 kW ⇒ I0030 kW.

The power supplied by the mains must be at least 30 kW in order for the first engine to start. This is then
operated with a minimum power of 30 kW.

Case 4: Generator real power, at which the second engine is started:

PGN.actual > Prated.tot - (PReserve.Parallel / No. GCB).

PGN.actual > 200 kW – (40 kW / 1) = 160 kW.

If the generator real power exceeds 160 kW, negative deviation from the pre-specified reserve power has
occurred. As a result of this, the next engine is started.

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Manual 37278A GCP-30 Series - Genset Control

Case 4: Generator real power of each individual generator, at which the third engine is started:

PGN.actual > Prated.tot - (Preserve.parallel / No. GCB) - Prated.

PGN.actual. > 400 kW – (40 kW / 2) - 200 kW = 180 kW.

If the generator real power of both generators exceeds 360 kW (each generator supplies more than
180 kW), negative deviation from the pre-specified reserve power has occurred. As a result of this, the
next engine is started.

Case 5: Generator real power of each individual generators, at which one engine is stopped:

PGN.actual.tot < Prated.tot - Preserve.parallel - Prated - Physt.

PGN.actual.tot < 600 kW - 40 kW - 200 kW - 20 kW = 340 kW.
(PGN.actual < PGN.actual.tot ) / No. GCB = 340 kW / 3 = 113.3 kW.

If the generator real power of the three generators falls below 340 kW (each individual generator below
113.3 kW), one engine is stopped. After one engine has been stopped, the reserve power is still available.

Case 5: Generator real power of each individual generator, at which one of the two engines is stopped:

PGN.actual.tot < Prated.tot - Preserve.parallel - Prated - Physt.

PGN.actual.tot < 400 kW - 40 kW - 200 kW - 20 kW = 140 kW.
(PGN.actual < PGN.actual.tot) / No. GCB = 140 kW / 2 = 70 kW.

If the generator real power of the two generators falls below 140 kW (each individual generator below
70 kW), one engine is stopped. After the engine has been stopped, the reserve power is still available.

Case 6: Generator real power, at which the last engine is stopped:

PGN.actual < - PNT.setpoint + PNT.actual + Pstart.gen - Physt.

PGN.actual. < - 0 kW + 0 kW + 30 kW - 20 kW = 10 kW.

If the generator falls below its minimum real power minus hysteresis, the engine is stopped. The power
imported from the mains therefore remains at the value that is to be controlled until just prior to stopping.
Following stopping, the power supplied by the mains increases to 10 kW.

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Isolated operation in parallel with other generators

The load-dependent start/stop function is activated for every control when the following criteria has been met:
• the operation mode AUTOMATIC has been selected
• all parameters, such as start power (Parameter 103), stop power (Parameter 106), start delay (Parameter 104),
stop delay (Parameter 105) and the frequency set point values (Parameter 10) are identical for all controls in-
volved
• one or both parameters "Load-dependent stop/start on terminal 3/5" (Parameter 101 or Parameter 102)
has/have been configured to "ON"
• the parameters "Load sharing" (Parameter 96) or "var sharing" (Parameter 98) have been configured as "ON"
• All generators are configured to the same rated power (Parameter 23)

NOTE
The reserve power (Parameter 109) should be selected in such a manner that expected load swings will
not overload the generator.

Parameter 109
Load dependent start/stop: reserve power (isolated operation) 0 to 9,999 kW
Reserve power
sloop. 0000kW Starting of an additional engine is determined via the reserve power. The reserve
power results from the currently available total generator rated real power (genera-
tor rated real power × number of closed GCB's) and the currently available total
generator actual real power. If the currently available total generator actual real
power is subtracted from the currently available total generator rated real power,
this results in the system's reserve power. If negative deviation from this reserve
power occurs, the next engine is started.

Currently available total generator rated real power

- Currently available total generator actual real power
= Reserve power
Parameter 110
Load dependent start/stop: start delay (isolated operation) 0 to 999 s
Add-on delay
isol.op. 000s Starting may be delayed even if the engine's start power (Parameter 103) has been
reached. In order to avoid starting the engine in the event of short-term load
swings, a start delay may be entered in seconds. The start power (Parameter 103)
must therefore be present without interruption during this period of time, in order
to ensure that the engine is started. If the load drops below the set start power limit
before the time configured here expires, the counter is reset to 0.
Parameter 111
Load dependent start/stop: stop delay (isolated operation) 0 to 999 s
Shed-off delay
isol.op. 000s Stopping can be delayed even if the engine's stop power (Parameter 106) has been
reached. In order to avoid shutting the engine down in the event of short-term load
swings, a stop delay may be entered in seconds. The stop power (Parameter 106)
must therefore be present without interruption during this period of time, in order
to ensure that the engine is stopped. If the load rises above the set stop power limit
before the time configured here expires, the counter is reset to 0.

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Manual 37278A GCP-30 Series - Genset Control

General

Case 7: Start of the engine

If [PGN.actual.tot + Preserve.isolated + > Prated.tot] the engine is started. (f)

Case 8: Stop of the engine

If [PGN.actual.tot + Preserve.isolated + Physt + Prated + < Prated.tot] the engine is stopped. (g)

Example

Two generators in an isolated operation are used in parallel with other generators. One generator should always
be in operation.

Prated = 200 kW Rated real power of a genset.

PReserve.isolated = 60 kW
Physt = 30 kW

Case 8: Generator real power, at which the second engine is started:

PGN.actual > Prated.tot - Preserve.isolated.

PGN.actual > 200 kW - 60 kW = 140 kW.

If the generator real power exceeds 140 kW negative deviation from the pre-specified minimum reserve
power occurs. As a result of this, the next engine is started.

Case 9: Generator real power, at which the second engine is stopped:

PGN.actual.tot < Prated.tot - Preserve.isolated - Prated - Physt.

PGN.actual.tot < 400 kW - 60 kW - 200 kW - 30 kW = 110 kW.
PGN.actual < PGN.actual.tot / No. GCB = 110 kW / 2 = 55 kW.

If, in the case of outgoing isolated load, the total actual generator real power is reduced to such an extent
that one generator is enough to ensure the reserve power, the second engine is stopped.

Stop Of The Engine At Mains Failure [GCP-31]

Parameter 112
Engine stop at mains failure ON/OFF
Mains error -
stop eng. ON ON................ If the mains fail for at least the time of the mains settling time (Para-
meter 151) and the discrete input "Enable MCB" (terminal 53) is en-
abled (the mains parallel operation is enabled), the engine is stopped.
When the mains returns and the mains settling time (Parameter 206)
has expired, the engine is started and the GCB is synchronized.
OFF.............. If the mains fail for at least the time of the emergency power start de-
lay (Parameter 151) and the discrete input "Enable MCB" (termi-
nal 53) is enabled (the mains parallel operation is enabled), the GCB
is opened. The engine will continue running in idle mode. When the
mains returns and the mains settling time (Parameter 206) has ex-
pired, the GCB is synchronized.

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Interface

NOTE
For remote acknowledgement of alarms, a remote stop while in idle mode must be performed. If the
control is in an isolated operation, an acknowledgement combined with a remote start must be per-
formed.

Parameter 113
Control via interface COM X1-X5 ON/OFF
Control via
COM X1X5 ON ON ................Control via the interface is enabled if the direct configuration (Para-
meter 3) has been configured as "OFF", the control via X1X5 (Para-
meter 113) has been configured to "ON", the operation mode is set to
AUTOMATIC and the discrete input "Automatic 2" (terminal 5) has
been enabled. The engine can be started and stopped and the breakers
can be opened via a remote signal. The generator real power and the
generator power factor ϕ set point value may also be transmitted.
OFF ..............The control via the X1X5 interface is disabled. The internally gen-
erator real power setpoint value 2 (Parameter 42) is selected with the
discrete input "Automatic 2" and the internal power factor cos ϕ
(Parameter 74) set point value is used. Interface monitoring is dis-
abled.
Parameter 114
Remote monitoring of the interface ON/OFF
Supervision
COMX1X5 ON ON ................Monitoring of the interface is enabled. If control signals are not re-
if COMX1X5 = ON only ceived (ID 503) every 90 seconds, a warning alarm of class 1 is trig-
gered.
OFF ..............Monitoring of the interface is disabled.
Parameter 115
Remote acknowledgment of F2/F3 alarms via the interface ON/OFF
Ackn. F2,F3 via
COM interf ON ON ................Alarm acknowledgement of alarms of the alarm classes F2/F3 via the
if COMX1X5 = ON only interface is enabled.
OFF ..............Alarm acknowledgement of alarms of the alarm classes F2/F3 via the
interface is disabled. Acknowledgment can be performed via the dis-
crete input "Acknowledgment" (terminal 6) or via the push button
"RESET".

NOTE
For the description of the second interface (Option SB and Option SC) refer to the following manuals:
• Option SB (e.g. Option SB03) = manual 37200
• Option SC (e.g. Option SC06) = manual 37182

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Breaker
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 116
Configuration of the breakers YES/NO
Configure
breaker YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES .............. The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO................ The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Functional Description

Permissible Limits

If the generator or mains monitoring for over-/undervoltage (Parameter 187) or over-/underfrequency (Para-
meter 181) is disabled, the CB logic (Parameter 117) and the control system are controlled by internally defined
limit values.

For the busbar, always the internally defined limit values are used.

Voltage Frequency
Generator VGen: 75 to 115 % VRatedSystem fGen: 80 to 110 % fRatedSystem
Busbar VBusbar: 85 to 112.5 % VRatedSystem fBusbar: 90 to 110 % fRatedSystem
Mains VMains: 85 to 112,5 % URatedSystem fMains: 90 to 110 % fRatedSystem
Table 3-4: Limit values, permissible limits

The permissible limits refer to the respective rated values in the system, i.e. the rated system voltage, configured
in Parameter 19, and the rated system frequency, configured in Parameter 11.

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Synchronization

Synchronization of the GCB

The GCB will be synchronized with frequency and voltage correction if the following conditions are met simul-
taneously.

Automatic mode
• The operation mode AUTOMATIC is selected
• One of the circuit breaker logics (Parameter 117) "PARALLEL" (mains parallel operation), "INTER-
CHANGE" (mains interchange (import/export) real power control) or "CLOSED TRANSIT." (make-before-
break/overlap synchronization) has been selected
• No class F2 or F3 alarms are present
• An "Automatic 1" (terminal 3) or "Automatic 2" (terminal 5) input has been enabled, a remote starting signal
has be activated via the interface, or an additional engine will be started in an emergency power operation and
will be synchronized to the busbar
• The busbar has been energized (the control measures a voltage)
• The engine is running and the generator voltage and frequency are within the permissible limits
• The delayed engine monitoring (Parameter 284) has expired (this does not apply in the case of emergency
power)
• The rotating field of the generator and the mains voltages are identical and no alarms are displayed

Manual mode
• The operation mode MANUAL has been selected
• One of the circuit breaker logics (Parameter 117) "PARALLEL" (mains parallel operation), "INTER-
CHANGE" (mains interchange (import/export) real power control) or "CLOSED TRANSIT." (make-before-
break/overlap synchronization) has been selected
• No class F2 or F3 alarms are present;
• The busbar has been energized (the control measures a voltage)
• The engine is running and the generator voltage and frequency are within the permissible limits
• The push-button "GCB ON" has been pressed
• The rotating field of the generator and the mains voltages are identical and no alarms are displayed

Load test mode

• The operation mode TEST has been selected
• One of the circuit breaker logics (Parameter 117) "PARALLEL" (mains parallel operation), "INTER-
CHANGE" (mains interchange (import/export) real power control) or "CLOSED TRANSIT." (make-before-
break/overlap synchronization) has been selected;
• No class F2 or F3 alarms are present;
• The busbar has been energized (the control measures a voltage)
• The engine is running and the generator voltage and frequency are within the permissible limits
• The push-button "GCB ON" has been pressed
• The rotating field of the generator and the mains voltages are identical and no alarms are displayed

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Synchronization of the MCB [GCP-32]

The MCB will be synchronized with frequency and voltage correction if the following conditions are met simul-
taneously:

Automatic mode
• The operation mode AUTOMATIC has been selected
• One of the circuit breaker logics (Parameter 117) "PARALLEL" (mains parallel operation), "INTER-
CHANGE" (mains interchange (import/export) real power control) or "CLOSED TRANSIT." (make-before-
break/overlap synchronization) has been selected
• No class F2 or F3 alarms are present
• The busbar has been energized (the control measures a voltage)
• The mains voltage is present and within the permissible limits
• The engine is running and the generator voltage and frequency are within the permissible limits
• The discrete input "Reply: GCB is open" has not been enabled (the GCB is closed)
• The discrete input "Enable MCB" has been enabled;
• The rotating field of the generator and the mains voltages are identical and no alarms are displayed

Manual operation
• The operation mode MANUAL has been selected;
• One of the circuit breaker logics (Parameter 117) "PARALLEL" (mains parallel operation), "INTER-
CHANGE" (mains interchange (import/export) real power control) or "CLOSED TRANSIT." (make-before-
break/overlap synchronization) has been selected;
• No class F2 or F3 alarms are present;
• The busbar has been energized (the control measures a voltage);
• The mains voltage is present and within the permissible limits;
• The engine is running and the generator voltage and frequency are within the permissible limits;
• The discrete input "Reply: GCB is open" has not been enabled (the GCB is closed);
• The discrete input "Enable MCB" has been enabled;
• The push-button "MCB ON" has been pressed;
• Load test: On termination of the load test (circuit breaker logics (Parameter 117) "INTERCHANGE" (mains
interchange (import/export) real power control) or "CLOSED TRANSIT." (make-before-break/overlap syn-
chronization), the GCB is opened;
• The rotating field of the generator and the mains voltages are identical (and no alarms are displayed);

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Dead Bus Start

Dead bus start of the GCB

The GCB will be closed without synchronization if the following conditions are met simultaneously:

Automatic mode
• The operation mode AUTOMATIC has been selected
• No class F2 or F3 alarms are present
• The Parameter 131 "GCB dead bus start" has been configured to "ON"
• The busbar has not been energized (the control measures no voltage)
• The engine is running, and the generator voltage and frequency are within the permissible limits
• The discrete input "Reply: MCB is open" has been enabled (the MCB is open)
• If load is shared via the CAN bus
- No GCB may be closed if the configured system is isolated operation in parallel with other generators
- The generator with the lowest control/generator number (Parameter 4) will be the first to close its GCB

Manual mode
• The operation mode MANUAL has been selected
• No class F2 or F3 alarms are present
• The busbar has not been energized (the control measures no voltage)
• The engine is running, and the generator voltage and frequency are within the permissible limits
• The discrete input "Reply: MCB is open" has been enabled (the MCB is open)
• If load is shared via the CAN bus
- No GCB may be closed if the configured system is isolated operation in parallel with other generators
- The generator with the lowest control/generator number (Parameter 4) will be the first to close its GCB)
• The push-button "GCB ON" has been pressed

Disabled generator monitoring:

If the generator monitoring for over-/undervoltage (Parameter 187) or over-/underfrequency (Parameter 181) is
disabled, the internally defined limit values are used.

Generator monitors Voltage Frequency

ON Monitor values Monitor values
OFF VGen < 75 % VRatedSystem fGen < 80 % fRatedSystem
VGen > 115 % VRatedSystem fGen > 110 % fRatedSystem
Table 3-5: Limit values generator, dead bus start

The permissible limits refer to the respective rated values in the system, i.e. the rated system voltage, configured
in Parameter 19, and the rated system frequency, configured in Parameter 11.

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Dead bus start of the MCB [GCP-32]

The MCB will close without synchronization if the following conditions are met simultaneously:

Automatic mode
• The operation mode AUTOMATIC has been selected
• The Parameter 135 "MCB dead bus start" has been configured to "ON"
• The busbar is not been energized (the control measures no voltage)
• The mains voltage is present and within the permissible limits
• The discrete input "Reply: GCB is open" has been enabled (the GCB is open)
• The discrete input "Enable MCB" has been enabled
• If load is shared via the CAN bus
- No MCB may be closed if the configured system is isolated operation in parallel with other generators
- The generator with the lowest control/generator number (Parameter 4) will be the first to close its MCB

Manual mode
• The operation mode MANUAL has been selected
• The busbar is not been energized (the control measures no voltage)
• The mains voltage is present and within the permissible limits
• The discrete input "Reply: GCB is open" has been enabled (the GCB is open)
• The discrete input "Enable MCB" has been enabled
• The push button "MCB ON" has been pressed
• If load is shared via the CAN bus
- No MCB may be closed if the configured system is isolated operation in parallel with other generators
- The generator with the lowest control/generator number (Parameter 4) will be the first to close its MCB

Operation mode STOP

• If "Enable MCB" (terminal 53) has been enabled and "Switch MCB in stop mode" (Parameter 148) is config-
ured "YES", the MCB will close when all generators are in STOP mode

Disabled mains monitoring:

If the mains monitoring for over-/undervoltage (Parameter 187) or over-/underfrequency (Parameter 181) is dis-
abled, the internally defined limit values are used.

Mains monitors Voltage Frequency

ON Monitor values Monitor values
OFF VMains < 85 % VRatedSystem fMains < 90 % fRatedSystem
VMains > 12.5 % VRatedSystem fMains > 110 % fRatedSystem
Table 3-6: Limit values mains, dead bus start

The permissible limits refer to the respective rated values in the system, i.e. the rated system voltage, configured
in Parameter 19, and the rated system frequency, configured in Parameter 11.

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Open Breaker

Open GCB
The GCB will be opened both when the relay "Command: GCB close" de-energizes (only if "continuous pulse"
has been configured; Parameter 121), and relay "Command: GCB open" is energized. The GCB will be opened
under the following circumstances:

• If a mains failure is detected and the mains decoupling is configured to the GCB (Parameter 145 or Para-
meter 146 depending on control unit)
• In the operation mode STOP
• If a class F2 or F3 alarm is present
• Upon pressing the push-button "GCB OFF" or [GCP-32] "MCB ON" (depending on the breaker logic which
has been configured) in operation mode MANUAL
• Upon pressing the push-button "STOP" in operation mode MANUAL
• Upon pressing the push-button "GCB OFF" or [GCP-32] "MCB ON" (depending on the breaker logic which
has been configured) in operation mode LOAD TEST
• In the event of an automatic stopping in the operation mode AUTOMATIC
• [GCP-32] following the "CLOSED TRANSIT." (make-before-break/overlap synchronization) of the MCB
• [GCP-32] before the MCB is closed to the dead busbar in the case of the breaker logic "OPEN TRANSIT."
(ATS/break-before-make/changeover)
• In critical mode/sprinkler operation, provided that no emergency power operation is present
• [GCP-32] following the "INTERCHANGE" (mains interchange (import/export) real power control) of the
MCB

Open MCB [GCP-32]

The MCB will be opened via closing the relay "Command: MCB open" (configuration of "continuous pulse" is
not possible for the MCB). The MCB will be opened under the following circumstances:

• If a mains monitoring triggers and the mains decoupling is configured to EXT (Parameter 146)
• If emergency power (AMF) is enabled (mains failure)
• following the "CLOSED TRANSIT." (make-before-break/overlap synchronization) of the GCB
• Before the GCB is closed to the dead busbar in the case of the breaker logic "OPEN TRANSIT." (ATS/break-
before-make/changeover)
• Upon pressing the push-button "MCB OFF" or "GCB ON" (depending on the breaker logic which has been
configured) in operation mode MANUAL
• Upon pressing the push-button "MCB OFF" or "GCB ON" (depending on the breaker logic which has been
configured) in operation mode LOAD TEST
• Following the soft loading (interchange synchronization) of the MCB

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Breaker Logic

NOTE
Using the discrete input "Change breaker logic via terminal 64" (Parameter 219), the breaker logic may
be switched between two different breaker logics (description on page 107). The desired standard
breaker logic is configured via the following parameter (Parameter 117). If Parameter 218 is configured
to "ON", the discrete input terminal 64 is used as a Control input. When a signal to terminal 64 is de-
tected, the breaker logic configured in Parameter 219 is used. If the signal is terminated, the breaker
logic configured in Parameter 117 is used again. Therefore it is possible during operation to change
between the breaker logic "PARALLEL" (automatic synchronizing) and "EXTERNAL" (manual synchro-
nizing).

Parameter 117
Breaker logic see below
Breaker logic:
---------------- The control automatically controls the two breakers (MCB and GCB). Up to five
(5) breaker logic modes may be selected. These are:

GCP-31 GCP-32
EXTERNAL EXTERNAL
PARALLEL PARALLEL
--- OPEN TRANSIT.
--- CLOSED TRANSIT.
--- INTERCHANGE

A detailed explanation for each mode may be found in the following text.

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Breaker Logic "PARALLEL"

Parallel operation is enabled via configuration of the parameter (Parameter 117) to "PARALLEL".

NOTE
Parallel breaker logic must be selected for the following operation modes:
• Isolated operation
• Isolated operation in parallel with other generators
• Mains parallel operation

In the event of an add-on request the following occurs:

• The GCB is synchronized and closed
• The necessary generator assumes load and real power or reactive power is controlled

Following the shed-off request the following occurs:

• The generator sheds load and the generator power factor ϕ is controlled to "1.00" (unity)
• The GCB is opened
• The engine is shut down following the configured cool down period

[GCP-32] The MCB is synchronized and closed if

• Terminal 53 "Enable MCB" has been enabled
• The GCB is closed

[GCP-32] The MCB is closed onto the dead busbar if

• The GCB is open
• The MCB is open
• The busbar is dead (de-energized)
• Terminal 53 "Enable MCB" has been enabled

NOTE
When a stop command is issued to the engine, with the exception of a class F3 alarm, soft loading
(power reduction) is carried out before opening the GCB.

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Breaker Logic "INTERCHANGE" [GCP-32]

Mains interchange (import/export) real power control is enabled via configuration of the parameter (Para-
meter 117) to "INTERCHANGE".

NOTE
For this breaker logic to function correctly, the mains power measurement must be connected prop-
erly. The power measurement must also be assigned the properly process identifier (C, I, or E).

In the event of an add-on request, a change is made from mains to generator supply. The following occurs:
• The GCB is synchronized and closed
• The generator assumes load until the mains interchange (import/export) real power is "zero"
• The MCB is opened

When a shed-off request has been issued, a change is made from generator to mains supply. The following oc-
curs:
• The MCB is synchronized and closed
• The generator sheds load until real power is "zero"
• The GCB is opened

Breaker Logic "CLOSED TRANSIT." [GCP-32]

Closed transition (make-before-break/overlap synchronization) is enabled via configuration of the parameter

(Parameter 117) to "CLOSED TRANSIT.".

In the event of an engine request, a change is made from mains to generator supply. The following occurs:
• The GCB is synchronized and closed
• The MCB is opened and the generator assumes all loads

After the engine shed-off request has been issued, a change is made from generator to mains supply. The follow-
ing occurs:
• The MCB is synchronized and closed
• The GCB is opened and the generator assumes all loads

NOTE
The breakers are opened without a soft loading or soft unloading during a closed transition.

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Breaker Logic "OPEN TRANSIT." [GCP-32]

Open transition (break-before-make/change over logic) is enabled via configuration of Parameter 117 to "OPEN
TRANSIT.".

In the event of an engine add-on request, a change is made from mains to generator supply. The following oc-
curs:
• The MCB is opened
• The GCB is closed

After the engine shed-off request has been issued, a change is made from generator to mains supply. The follow-
ing occurs:
• The GCB is opened
• The MCB is closed

Breaker Logic "EXTERNAL"

External breaker logic is enabled via configuration of Parameter 117 to "EXTERNAL".

All breaker control must be carried out via master controller (e.g. a PLC). The GCP controller will only issue
opening and closing pulses to the MCB and GCB when in the MANUAL operating mode. The GCP controller
always issues the breaker open command under fault conditions.

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Overview GCP-32

STOP TEST MANUAL AUTOMATIC

EXTERNAL: Breaker logic "External"

The MCB and the GCB are operated in MANUAL operation mode only in this breaker logic mode. In a mains parallel opera-
tion, uncoupling from the mains is carried out via the MCB or the GCB in the event of a mains failure. The breakers will not
automatically close in emergency power operation. Emergency power operation in accordance with European Community
Specification DIN VDE 0108 is not possible in this power circuit breaker logic.
The GCB is ope- The GCB and the MCB are not The MCB and the GCB may be The GCB is opened if the genset
ned. operated. , manually opened and closed is stopped or if decoupling from
without synchronization. The cir- the mains, but will not close if
Exception: The breakers are cuit breakers are opened for de- the engine is started. The MCB is
opened for decoupling from the coupling from the mains. opened only if decoupling from
mains. the mains, and is never closed.

PARALLEL: Breaker logic "Mains parallel operation"

The MCB and GCB are synchronized to permit continuous mains parallel operation in this breaker logic mode.
The GCB is ope- The GCB and the MCB are not Mains parallel operation can be The GCB is synchronized via an
ned; the MCB is operated. initiated by pressing the "GCB add-on request and a mains paral-
not operated. ON" or "MCB ON" push-button. lel operation is performed. When
Exception: Load test by actuating a shed-off request is issued, the
the "GCB ON" push-button. generator sheds load and opens
Termination of the load test with the GCB and the engine is shut
the "GCB OFF" push-button. down following the configured
cool down period.
Emergency power: Automatic
closing of the GCB. If there is a Emergency power: The emer-
dead busbar and terminal 53 "En- gency power operation is termi-
able MCB" is energized, the nated following the expiration of
MCB will be closed. the mains settling time. The
MCB is synchronized and closed,
putting the system back into a
mains parallel operation.

OPEN TRANSIT.: Breaker logic "Open transition / ATS / change-over / brake-before-make"

The MCB and GCB are never synchronized in this breaker logic mode.
The GCB is ope- The GCB and the MCB are not A change can be made to either A change is made to generator
ned; the MCB is operated. generator or mains operation by operation through an add-on re-
not operated. pressing either the "GCB ON" or quest. Once the add-on request is
Exception: Load test by actuating "MCB ON" push-button. The terminated, the system changes
the "GCB ON" push-button. "STOP" push-button opens the back to mains operation. The
Termination of the load test via GCB and simultaneously stops MCB is closed when the busbar
the "GCB OFF" or "MCB ON" the engine. is dead, even if there has not been
push-button(s). an add-on request. Emergency
power operations are terminated
Emergency power: Automatic following the expiration of the
closing of the GCB. If there is a mains settling timer. The GCB
dead busbar and terminal 53 "En- opens and the MCB closes, trans-
able MCB" is energized, the ferring all loads to the mains.
MCB will be closed.

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STOP TEST MANUAL AUTOMATIC

CLOSED TRANSIT.: Breaker logic "Closed transition / make-before-brake / overlap synchronization"

The MCB and the GCB are synchronized, in order to avoid a dead busbar in this breaker logic mode. Immediately after the
synchronization of one breaker, the other is opened. Continuous mains parallel operation is not possible.
The GCB is ope- The GCB and the MCB are not Synchronization of either the The GCB is synchronized via an
ned; the MCB is operated. generator or the mains can be ini- add-on request. After the GCB
not operated. tiated by pressing the "GCB ON" closes the MCB is opened.
Exception: Load test by actuating or "MCB ON" push-button. Following the shed-off request
the "GCB ON" push-button. being issued, the MCB is
Termination of the load test via synchronized and closed. After
the "GCB OFF" or "MCB ON" the MCB has closed the GCB is
push-button(s). opened.
Emergency power: The emer-
Emergency power: Automatic gency power operation is termi-
closing of the GCB. If there is a nated following the expiration of
dead busbar and terminal 53 "En- the mains settling time and the
able MCB" is energized, the MCB synchronizing to the gen-
MCB will be closed. erator. The MCB closes and the
GCB opens immediately after-
wards.

INTERCHANGE: Breaker logic "Soft loading / interchange synchronization"

The MCB and the GCB are synchronized, in order to avoid a dead busbar in this breaker logic mode. The operation of a
breaker under load is avoided by utilizing the ability to soft load. Continuous mains parallel operation is not possible with this
breaker logic. Following the shed-off request, the MCB synchronizes and closes, the generator soft unloads to the mains and
the GCB opens. After the GCB is open the engine is stopped following the expiration of the configured cool down period.
The GCB is ope- The GCB and the MCB are not Synchronization of either the Via an engine request, the GCB
ned; the MCB is operated. generator or the mains can be is synchronized and the generator
not operated. initiated by pressing the "GCB power is reduced. The MCB is
Exception: Load test by actuating ON" or "MCB ON" push-button. then opened. Following the dis-
the "GCB ON" push-button. abling of the engine request, the
Termination of the load test via MCB is reverse synchronized and
the "GCB OFF" or "MCB ON" the GCB is then opened.
push-button.
Emergency power: The emer-
Emergency power: Automatic gency power operation is termi-
closing of the GCB. If there is a nated following the expiration of
dead busbar and terminal 53 "En- the mains settling time. The
able MCB" is energized, the MCB closes, the load is trans-
MCB will be closed. ferred, and the GCB opens.

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Overview GCP-31

STOP TEST MANUAL AUTOMATIC

EXTERNAL: Breaker logic "External"

The GCB is never synchronized in this operation mode. Decoupling from the mains when in a mains parallel operation is car-
ried out via the GCB in the event of mains faults. The breaker will not automatically close in emergency power operations.
The GCB is ope- The GCB is not operated. The GCB can be manually The GCB is opened for stopping
ned. opened and closed without syn- or for decoupling from the mains,
Exception: The breaker is opened chronization. The breaker is but is not closed in the event of
for decoupling from the mains. opened for decoupling from the an add-on request.
mains.

PARALLEL: Breaker logic "Mains parallel"

This operation mode may be used both in the case of an isolated system, an isolated parallel system, and a system that is op-
erated in mains parallel.
The GCB is The GCB is not operated. Mains parallel operation can be The GCB is synchronized via an
opened. performed via the "GCB ON" add-on request and mains parallel
Exception: Load test by actuating push-button. operation is performed. When a
the "GCB ON" push-button. shed-off request is issued, the
Termination of the load test with generator sheds load, the GCB is
the "GCB OFF" push-button. opened, and the engine is shut
down following the configured
Emergency power: The GCB is cool down period.
opened for decoupling from the
mains.

Start/Stop Ramp, Open GCB With F2 Alarm

Parameter 118
Start/stop ramp 0 to 999 s
Add-on/off ramp
max.time 000s This time can be used to influence two functions:

Stop: The maximum amount of time generator will shed load is set here. If the gen-
erator load does not drop below 3 % of the generator rated power (Parameter 23)
within this time, the GCB is opened.

Start with soft loading: If the mains interchange (import/export) real power value
does not reach 0 kW in breaker logic "INTERCHANGE" within the time configured
here; a class F1 alarm and an alarm message are issued. At the same time, the relay
manager relay, which is programmed with relay manager function 78 (Appendix B)
is enabled and the MCB is prevented from opening.
Parameter 119
Max. perm. time with F2 alarms for starting a further engine 0 to 999 s
Open GCB with F2
max.time 000s Prerequisite: Load sharing (Parameter 96) and automatic start/stop (Parameter 101
or Parameter 102) are configured to "ON". The generator is in isolated operation and
at least one additional generator is connected to a busbar.

If a class F2 alarm occurs the engine shutdown may be delayed by the time config-
ured here. This permits another engine to attempt to start in order to assume the load.
After the configured time expires the engine with the F2 alarm condition will shut-
down regardless if another engine was able to start and assume the load.

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GCB Pulse/Continuous Pulse

Closing and opening of the GCB and the MCB are described in the following figures (Figure 3-6 and
Figure 3-7). Changing of the breaker control logic is configured using Parameter 120 and has the described effect
on the signal sequence (the operation of the MCB cannot be carried out by means of the continuous pulse). If the
"Automatic breaker deblocking" (Parameter 128) is configured to "ON", an open pulse is issued prior to each
close pulse. The discrete input "Enable MCB" (terminal 54) enables/disables closing the MCB. A closed MCB is
not opened.

• Breaker logic: 'Impulse'

Connection time
1 2 3 8
'Enable
MCB'

Time/s

4 7
'Command: close
MCB' (16/17)

Time/s

'Command: open .. 9 13
.. GCB' (41/42)
.. MCB' (39/40) 2/0,8 s
12

Time/s

'Reply: .. 5 6 11
.. GCB is open' (4/7)
.. MCB is open' (54/7)
10

Time/s

Figure 3-6: Breaker control logic 'Impulse'

'Impulse' logic (GCB and MCB): 1 Enable MCB; 2 Synchronization; 3 Connect time reached:
• close GCB/MCB: 4 Closing pulse for GCB/MCB enabled; 5 Inherent delay; 6 Reply GCB/MCB; 7 Closing
pulse disabled;
• open GCB/MCB: 9 Opening pulse GCB/MCB enabled; 10 Inherent delay; 11 Reply GCB/MCB; 12 Time
delay (GCB: 2 s; MCB: 0.8 s); 13 Opening pulse disabled.

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• Beaker logic: 'Continuous'

4 9
'Command: close
GCB' (14/15)

Time/s

4 7
'Command: close
GCB' (14/15)

Time/s

Figure 3-7: Breaker control logic 'Continuous'

'Continuous' logic (GCB only): 1 Enable; 2 Synchronization; 3 Connect time reached:

• close GCB: 4 GCB close continuous pulse enabled; 5 Inherent delay; 6 Reply GCB;
• open GCB: 9 Continuous pulse disabled and GCB open pulse enabled; 10 Switcher time element; 11 Reply
GCB; 12 Opening pulse disabled.

Parameter 120
Signal logic for the GCB Impulse/Constant
GCB close.relay
---------------- Constant ...... The relay "Command: close GCB" can be looped directly into the
self-holding circuit of the breaker. Following the connect impulse has
been issued and the reply of the breaker has been received, the relay
"Command: close GCB" remains energized. If the breaker must be
opened, the relay de-energizes.
Impulse ........ The relay "Command: close GCB" outputs a connect impulse. The
GCB self-holding function must be performed by an external holding
circuit. The reply of the GCB is used to detect the closed breaker.

In both cases, the relay "Command: open GCB" (terminal 41/42) is energized to
open the GCB.

Open/Close GCB
Parameter 121
Opening the GCB (terminal 41/42) NO-contact/NC-contact
GCB open relay
---------------- NC-contact .. If the GCB is to be opened, the relay "Command: open GCB" (termi-
nal 41/42) remains energized. Following the "Reply: GCB is open"
the relay de-energizes.
NO-contact . If the GCB is to be opened, the relay "Command: open GCB" (termi-
nal 41/42) de-energizes. Following the "Reply: GCB is open" the re-
lay energizes again.

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Synchronization (With Synchronous Generators Only)

Parameter 122
Max. perm. differential frequency for synchronization (pos. slip) 0.02 to 0.49 Hz
Synchronize
df max 0.00Hz The prerequisite for a connect command being issued is that the differential fre-
quency is below the configured differential frequency. This value specifies the up-
per frequency (positive value corresponds to positive slip Æ generator frequency is
higher than the busbar frequency in the case of GCB synchronization; busbar fre-
quency is higher than the mains frequency in the case of MCB synchronization).
Parameter 123
Max. perm. differential frequency for synchronization (neg. slip) 0.00 to -0.49 Hz
Synchronize
df min -0.00Hz The prerequisite for a connect command being issued is that the differential fre-
quency is above the configured differential frequency. This value specifies the
lower frequency limit (negative value corresponds to negative slip Æ generator
frequency is less than the busbar frequency in the case of GCB synchronization;
busbar frequency is lower than the mains frequency for MCB synchronization).
Parameter 124
Max. perm. differential voltage for synchronization 01.0 to 20.0 %
Synchronize
dV max 00.0% L This value refers to the parameter "Rated volt. in system" (Parameter 19).

A connect command will only be issued when the measured voltage falls below the
configured differential voltage.
Parameter 125
Min. pulse duration of connect relay for synchronization 0.02 to 0.26 s
Synchronize
time pulse>0.00s The duration of the close pulse can be adjusted to the breaker (valid for synchroni-
zation and dead bus start).
Parameter 126
Inherent delay of GCB for synchronization 40 to 300 ms
Closing time
GCB 000ms The inherent closing time of the GCB corresponds to the lead-time of the close
command. The close command will be issued independently of the differential fre-
quency at the entered time before the synchronous point.
Parameter 127
Inherent delay of MCB for synchronization 40 to 300 ms
Closing time
MCB 000ms The inherent closing time of the MCB corresponds to the lead-time of the close
command. The close command will be issued independently of the differential fre-
quency at the entered time before the synchronous point.
Parameter 128
Automatic circuit breaker deblocking ON/OFF
Automat.breaker
deblocking ON ON ................Prior to each close pulse, a "Command: open GCB", or "Command:
open MCB" is issued for 1 second. A close signal is then enabled un-
til the breaker is closed.
OFF ..............Initialization of the circuit breaker initialization on closing is per-
formed only by the close pulse. No close pulse is issued prior to the
close pulse.

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Synchronization Time Monitoring (With Synchronous Generators Only)

If the following parameter (Parameter 129) is configured to "ON", synchronization time monitoring is per-
formed: If the synchronization of the GCB or [GCP-32] MCB is initiated, the timer is started following the ter-
mination of the delayed engine monitoring. If the breaker has not closed following the expiration of the config-
ured time, an F1 alarm message is issued.

NOTE
If during an enabled "MCB monitoring" (Parameter 144) an alarm is detected while closing the MCB, a
emergency power operation is performed (if this has been configured to ON; Parameter 150).

Parameter 129
Monitoring of synchronization time ON/OFF
Sync.time contr.
ON ON................ Synchronization time will be monitored. The subsequent screens of
this function are displayed.
OFF.............. Synchronization time will not be monitored. Synchronization will be
attempted until it can be accomplished. The subsequent screens of
this function are not displayed.
Parameter 130
Final value for synchronization time monitoring 10 to 999 s
Sync.time contr.
delay 000s If the synchronization of the GCB or MCB is initiated, the timer is started follow-
ing the termination of the delayed engine monitoring. If the breaker cannot be
closed and this time has expired, an alarm message is issued and the control contin-
ues to attempt to close the breaker. The relay assigned relay manager func-
tion 16 (GCB) and/or 70 (MCB) is energized.
Issuing of class F1 alarm

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Dead Bus Start (With Synchronous Generators Only)

If the busbar is de-energized, a dead bus start of the GCB or the MCB is performed. If closing commands for the
MCB and the GCB are issued simultaneously, priority is given to the MCB provided the discrete input "Enable
MCB" (terminal 54) has been enabled.
Parameter 131
Dead bus start of the GCB ON/OFF
GCB dead bus op.
ON ON ................A dead bus start is performed in the event of a de-energized busbar
and an open MCB. The subsequent screens of this function are dis-
played.
OFF ..............A dead bus start is not performed. The subsequent screens of this
function are not displayed.
Parameter 132
Maximum differential frequency for GCB dead bus start 0.05 to 5.00 Hz
GCB dead bus op.
df max 0.00Hz The prerequisite to issuing a close command is that the monitored generator fre-
quency may deviate from the generator rated frequency by no more than this value.
Parameter 133
Maximum differential voltage for GCB dead bus start 01,0 to 15,0 %
GCB dead bus op.
dV max. 00,0% L This value refers to the parameter "rated voltage in system" (Parameter 19).

The prerequisite to issuing a close command is that the monitored generator voltage
may deviate from the generator rated frequency by no more than this value.
Parameter 134
Maximum time for closing the GCB 0 to 999 s
GCB dead bus op
max.time 000s If the GCB is to be closed onto a dead busbar, this timer is initiated at the start of
the breaker closing sequence. If the breaker fails to close before the configured
time expires, a class 1 alarm is issued.
Issuing of class F1 alarm

Parameter 135
Dead bus closing of the MCB ON/OFF
MCB dead bus op.
ON ON ................A dead bus closing of the MCB is performed in the event of a de-
energized busbar and an open GCB. The subsequent screens of this
function are displayed.
OFF ..............A dead bus closing of the MCB is not performed. The subsequent
screens of this function are not displayed.

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Connection Functions (With Induction/Asynchronous Generators Only)

Parameter 136
Connection of the GCB ON/OFF
Switching-on GCB
ON ON................ Generator frequency control is performed with the set point of the
mains frequency. The GCB is closed after meeting all connection cri-
teria listed below. The subsequent screens of this function are dis-
played.
OFF.............. The GCB is not closed. The subsequent screens of this function are
not displayed.
Parameter 137
Max. perm. diff. frequency for GCB connection (pos. slip) 0.05 to 9.99 Hz
Switching-on GCB
df max 0.00Hz The prerequisite for issuing a close command is the monitored generator frequency
may deviate from the generator rated frequency by no more than this value. This
value specifies the upper frequency limit (positive value corresponds to positive
slip Æ generator frequency is higher than the busbar frequency in the case of GCB
synchronization).
Parameter 138
Min. perm. diff. frequency for GCB connection (neg. slip) 0.0 to -9.99 Hz
Switching-on GCB
df min -0,00Hz The prerequisite for issuing a close command is the monitored generator frequency
may deviate from the generator rated frequency by no more than this value. This
value specifies the lower frequency limit (negative value corresponds to negative
slip Æ generator frequency is less than the busbar frequency in the case of GCB
synchronization).
Parameter 139
Time pulse for the GCB 0.02 to 0.26 s
Switching-on GCB
T.impuls >0.00s The duration of the close pulse can be adjusted to the breaker.

Parameter 140
Automatic circuit breaker deblocking ON/OFF
Automat.breaker
deblocking ON ON................ Prior to each close pulse, a "Command: open GCB", or "Command:
open MCB" is issued for 1 second. A close signal is then enabled un-
til the breaker is closed.
OFF.............. Initialization of the circuit breaker closing is performed only by the
close pulse. No open pulse is issued prior to the close pulse.

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Connect Time Monitoring (With Induction/Asynchronous Generators Only)

If Parameter 140 is configured to "ON", closing time monitoring is performed: A timer is started when the clos-
ing of the GCB is initiated following the termination of the delayed engine monitoring. If the breaker has not
closed following the expiration of the configured time, an F1 alarm message is issued.
Parameter 141
Breaker close time monitoring ON/OFF
Switch.time cntr
ON ON ................Connect time monitoring is carried out. The subsequent screen of this
function is displayed.
OFF ..............Unsuccessful connection is not monitored. The subsequent screen of
this function is not displayed.
Parameter 142
Delay of breaker close time monitoring 2 to 999 s
Switch.time cntr
delay 000s When the closing of the GCB is initiated, a timer is started. If the GCB has not
closed before the expiration of the timer, a warning message "Connect time GCB"
is issued. A further attempt is made to connect the power circuit breaker. The relay
assigned relay manager function 16 (GCB) and/or 70 (MCB) is energized.
Issuing of class F1 alarm

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Breaker Monitoring

Upon CLOSING - If "GCB monitoring" (Parameter 143) and/or "MCB monitoring" (Parameter 144) have been
configured "ON", GCB and/or MCB monitoring is performed (exception: the breaker logic is configured "EX-
TERNAL" (Parameter 117). If the breaker cannot be closed after five attempts, a class F1 alarm is issued. If a re-
lay has been assigned relay manager functions 74 or 75, it will be energized.

Upon OPENING - When opening a circuit breaker an open pulse is issued immediately after a close pulse. If a
reply is detected 2 seconds after the close pulse was issued that the MCB or GCB has not opened, an class F1
alarm message is issued. If a relay has been assigned relay manager functions 76 or 77, it will be energized:
Parameter 143
GCB monitoring ON/OFF
Supervision GCB
ON ON................ Monitoring of the GCB is performed except when the breaker logic
is configured as "EXTERNAL". If the breaker cannot be closed after
five attempts, an alarm message is issued. The relay assigned relay
manager function 75 is energized. Following the issuing of the alarm
message, further attempts are made to close the GCB. If load sharing
has been enabled (Parameter 96), the closing command to the breaker
is cancelled if an alarm is issued so that another control may close its
breaker. If a "Reply: GCB is open" message is not detected 2 seconds
after a "Command: open GCB" pulse is issued, an alarm message is
issued. The relay assigned relay manager function 77 is energized.
Issuing of class F1 alarm
OFF.............. No GCB monitoring is performed.
Parameter 144
MCB monitoring ON/OFF
Supervision MCB
ON ON................ Monitoring of the MCB is performed except when the breaker logic
is configured as "EXTERNAL". If the breaker cannot be closed after
five attempts, an alarm message is issued. The relay assigned relay
manager function 74 is energized. Following the issuing of the alarm
message, further attempts are made to close the MCB. If load sharing
has been enabled (Parameter 96) the closing command to the breaker
is cancelled if an alarm is issued so that another control may close its
breaker. If a "Reply: MCB is open" message is not detected
2 seconds after a "Command: open MCB" pulse is issued, an alarm
message is issued. The relay assigned relay manager function 76 is
energized.
Issuing of class F1 alarm
OFF.............. No MCB monitoring is performed.

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Mains Decoupling

NOTE
If the mains monitoring (frequency and voltage) is disabled, no mains decoupling is performed.

Parameter 145
Decoupling from the mains via ... GCB; GCB->EXT; EXT; EXT->GCB
Mains decoupling
via ------ GCB .............If a mains failure (Parameter 192 to Parameter 205) occurs the GCB
at GCP-31 only will be opened. (The mains failure is detected by means of the mains
voltage [terminals 50/51/52]).

GCB->EXT..If a mains failure (Parameter 192 to Parameter 205) occurs the GCB
will be opened. (The mains failure is detected by means of the mains
voltage [terminals 50/51/52]). An alarm message will be issued with
the end of the delay time (Parameter 147) if terminal 4 does not de-
tect a reply that the GCB has opened. The relay assigned relay man-
ager function 76 will be energized as well. The "Command: open
GCB" relay (terminal 41/42) will be de-energized and the "Com-
mand: MCB open" relay (terminals 39/40) is energized.
Issuing of class F1 alarm
EXT ..............If a mains failure (Parameter 192 to Parameter 205) occurs the relay
with the "Command: MCB open" relay (terminals 39/40) will be en-
ergized. (The mains failure is detected by means of the mains voltage
[terminals 50/51/52]).

EXT->GCB..If a mains failure (Parameter 192 to Parameter 205) occurs the relay
with the "Command: MCB open" relay (terminals 39/40) will be en-
ergized. (The mains failure is detected by means of the mains voltage
[terminals 50/51/52]). An alarm message will be issued with the end
of the delay time (Parameter 147) if terminal 54 does not detect a re-
ply that the breaker has opened. The relay assigned relay manager
function 77 will be energized as well. The "Command: MCB open"
relay (terminals 39/40) will be de-energized and the "Command:
open GCB" relay (terminals 41/42) is energized.
Issuing of class F1 alarm

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NOTE
If the mains monitoring (frequency and voltage) is disabled, no mains decoupling is performed.

Parameter 146
Decoupling from the mains via ... GCB; GCB->MCB; MCB; MCB->GCB
Mains decoupling
via ------ GCB ............. If a mains failure (Parameter 192 to Parameter 205) occurs the GCB
at GCP-32 only will be opened. (The mains failure is detected by means of the mains
voltage [terminals 50/51/52]).

GCB->MCB If a mains failure (Parameter 192 to Parameter 205) occurs the GCB
will be opened. (The mains failure is detected by means of the mains
voltage [terminals 50/51/52]). An alarm message will be issued with
the end of the delay time (Parameter 147) if terminal 4 does not de-
tect a reply that the GCB has opened. The relay assigned relay man-
ager function 76 will be energized as well. The "Command: open
GCB" relay (terminal 41/42) will de-energize and the "Command:
open MCB" relay (terminals 39/40) is energized.
Issuing of class F1 alarm
MCB ............ If a mains failure (Parameter 192 to Parameter 205) occurs the MCB
will be opened. (The mains failure is detected by means of the mains
voltage [terminals 50/51/52]).

MCB->GCB If a mains failure (Parameter 192 to Parameter 205) occurs the MCB
will be opened. (The mains failure is detected by means of the mains
voltage [terminals 50/51/52]). An alarm message will be issued with
the end of the delay time (Parameter 147) if terminal 54 does not de-
tect a reply that the MCB has opened. The relay assigned relay man-
ager function 77 will be energized as well. The "Command: open
MCB" relay (terminals 39/40) will de-energize and the "Command:
open GCB" relay (terminals 41/42) is energized.
Issuing of class F1 alarm

Parameter 147
Mains decoupling after 0.10 to 5.00 s
Mains decoupling
-> after 0.00s The maximum amount of time that the mains decoupling should be completed in.

WARNING
During maintenance of the busbar be aware that an open MCB will be closed by the GCP when the
mains settling time (Parameter 206; starts when voltage is detected on the mains) expires if Para-
meter 148 is configured as "YES". Configuring Parameter 148 as "NO" or take other measures to pre-
vent the busbar from being energized.

Parameter 148
Operate MCB in operation mode STOP YES/NO
Switch MCB in
STOP mode NO YES .............. The MCB will be operated by the GCP in STOP mode (the busbar
will be closed onto the mains if the controller is changed into this
STOP mode). It is necessary that "Enable MCB" (terminal 54) be en-
ergized as well.
NO................ The MCB will not be operated by the GCP in STOP mod (the busbar
will not be connected or remains unconnected if the control unit is
changed into STOP mode).

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Emergency Power (AMF)

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 149
Configuration of the emergency power (AMF) YES/NO
Configure
emergency YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

NOTE
Emergency power is only possible with synchronous generators utilizing 2 circuit breakers (i.e. GCP-
32 or GCP-31 with LS 4 coupling).

Prerequisite: The emergency power (AMF) function may only be enabled with synchronous generators using
Parameter 149 ("Emergency power"). Emergency power operations are only performed in AUTOMATIC or
TEST mode regardless of the status of the discrete inputs "Automatic 1" and "Automatic 2".

NOTE
If the "Engine enable" or "Engine block" function is assigned to terminal 6 (Parameter 224), emergency
power can be prevented or interrupted from an external source through a discrete input. Refer to
"Terminal 6" on page 109.
If Parameter 221 is configured ON and discrete input 11 at terminal 68 is energized, emergency power
operation will also be prevented or interrupted (see Enable 'Emergency OFF' via terminal 68 on
page 108).

Activation of emergency power: If a mains voltage fault (over-/undervoltage, -frequency or phase/vector jump)
is detected on any single phase of terminals 50/51/52 without interruption for the duration of the emergency
power start delay time (Parameter 151), emergency power is activated. A mains voltage fault is defined as fol-
lows: If the mains watchdogs (Parameter 192 and/or Parameter 197) are configured to ON and the applicable
limit values set there are surpassed; otherwise, the limits are internally defined as follows:

Mains watchdogs Voltage Frequency

ON Monitoring values (see Parameter 192ff) Monitoring values (see Parameter 197ff)
OFF Vmains < 85 % Vrated fmains < 90 % frated
Vmains > 112 % Vrated fmains > 110 % frated
Table 3-7: Limit values, Emergency power

Emergency power (AMF) is also initiated through the detection of a breaker alarm when the MCB is closed. In
order to enable this, Parameter 150 ("Emergency power) and Parameter 144 ("MCB monitoring") must be con-
figured to "ON".

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The following actions occur in an emergency power operation:

• If emergency power is triggered, the engine is started unless the sequence is interrupted by an alarm or the
change of the operation mode.
• If the mains return during the start cycle, the MCB is not opened. The engine starts and continues running un-
til the mains settling time (Parameter 206) expires. If another mains fault occurs during this time, the MCB is
opened and the GCB is closed to the dead busbar. The engine shuts down following the expiration of the
mains settling time (Parameter 206) if no additional mains faults occur.
• The GCB will be closed regardless of the engine delay time once the dead bus limits have been reached.
• If the mains returns during emergency power operation while the GCB is closed, the MCB will be synchro-
nized after the mains settling time (Parameter 206) has expired.

Emergency power: In the event of an active emergency power operation, the message "Emergency power" is
displayed.

Emergency Power With Breaker Logic "PARALLEL"

Emergency power: Following a mains fault the "emergency power start delay" (Parameter 151) must expire be-
fore the engine is started. Once the voltage and frequency limit values are reached, the MCB is opened and the
GCB is closed to the dead busbar. The generator supplies the load.

Return of the mains: Following the return of the mains the control remains in the emergency power operation
until the mains settling time has expired (Parameter 206) before synchronization of the MCB is initiated. After
closing the MCB, the control returns to its original operation mode. If the engine is to be shut down after the
emergency power operation is over, a power reduction (soft unloading) is carried out if the real power controller
(Parameter 80) is configured to ON.

If the mains return during the start cycle, the MCB is not opened. The engine remains in idle mode during the
mains settling time (Parameter 206) in order to enable the immediate closing of the GCB in the event of further
mains faults.

Emergency Power With Breaker Logic "OPEN TRANSIT."

Emergency power: Following a mains fault the "emergency power start delay" (Parameter 151) must expire be-
fore the engine is started. Once the voltage and frequency limit values are reached, the MCB is opened and the
GCB is closed to the dead busbar. The generator supplies the load.

Return of the mains: Following the return of the mains the control remains in the emergency power operation
until the mains settling time has expired (Parameter 206) before transitioning back (via an open transition/over a
dead busbar) to mains supply. If an engine request is present following the expiration of the mains settling time
(Parameter 206), the generator will remain in isolated operation.

If the mains return during the start cycle, the MCB is not opened. The engine remains in idle mode during the
mains settling time (Parameter 206) in order to enable the immediate closing of the GCB in the event of further
mains faults.

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Emergency Power With Breaker Logic "CLOSED TRANSIT."

Emergency power: Following a mains fault the "emergency power start delay" (Parameter 151) must expire be-
fore the engine is started. Once the voltage and frequency limit values are reached, the MCB is opened and the
GCB is closed to the dead busbar. The generator supplies the load.

Return of the mains: Following the return of the mains the control remains in the emergency power operation
until the mains settling time has expired (Parameter 206). Synchronization of the MCB (via a closed transi-
tion/over a live busbar) to mains supply is initiated if no engine request is present. Following the closure of the
MCB, the GCB is opened immediately and without any power reduction (soft unloading). If an engine request is
present following the expiration of the mains settling time (Parameter 206), the generator will remain in isolated
operation.

If the mains return during the start cycle, the MCB is not opened. The engine operates in idle mode during the
mains settling time (Parameter 206) in order to enable the immediate closing of the GCB in the event of further
mains faults.

Emergency Power With Breaker Logic "INTERCHANGE"

Emergency power: Following a mains fault the "emergency power start delay" (Parameter 151) must expire be-
fore the engine is started. Once the voltage and frequency limit values are reached, the MCB is opened and the
GCB is closed to the dead busbar. The generator supplies the load.

Return of the mains: Following the return of the mains the control remains in the emergency power operation
until the mains settling time has expired (Parameter 206). Synchronization of the MCB (via a closed transi-
tion/over a live busbar) to mains supply is initiated if no engine request is present. Following the closure of the
MCB, the GCB is opened after a power reduction (soft unloading) is performed if the real power controller
(Parameter 80) is configured to "ON". If an engine request is present following the expiration of the mains set-
tling time (Parameter 206), the generator will remain in isolated operation.

If the mains return during the start cycle, the MCB is not opened. The engine operates in idle mode during the
mains settling time (Parameter 206) in order to enable the immediate closing of the GCB in the event of further
mains faults.

Emergency Power With Breaker Logic "EXTERNAL"

ATTENTION
This breaker logic will not permit emergency power in accordance with DIN VDE 0108!

Emergency power: Following a mains fault the "emergency power start delay" (Parameter 151) must expire be-
fore the engine is started. Once the voltage and frequency limit values are reached, the MCB is opened and the
GCB is closed to the dead busbar. The generator supplies the load. No further operation of the GCB and the
MCB are performed, regardless if the mains return.

Emergency power With MCB Malfunction

MCB malfunction: In the operation mode AUTOMATIC without a starting request, the control is in emergency
power standby. If the MCB opens without initiation, the control attempts to reclose the breaker. If the MCB can-
not be reclosed due to an MCB failure, the engine is started and the alarm message "MCB malfunction" is dis-
played, if Parameter 149 ("Emergency power") and Parameter 144 ("Supervision MCB") are configured to "ON".
The GCB is closed and emergency power subsequently supplies the busbar. Following acknowledgement of the
"MCB malfunction" alarm, the MCB synchronized from generator supply to mains supply and the engine shut
down after the expiration of the mains settling time (Parameter 206).

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Emergency Power; Parameters

Parameter 150
Emergency power ON/OFF
Emergency power
ON ON................ If the control is in AUTOMATIC or TEST mode and a mains failure
occurs, the engine is started and an automatic emergency power op-
eration is performed. The subsequent parameters of this function are
displayed. Emergency power is also initiated by the detection of a
breaker failure when the MCB is to be closed. In order to enable this,
the Parameter 144 ("Supervision MCB") must be configured to
"ON".
OFF.............. Emergency power operation is not enabled and the subsequent pa-
rameters of this function are not displayed.
Parameter 151
Start delay for emergency power 0.5 to 99.9 s
Emergency power
start del. 00.0s In order to start the engine and to carry out an emergency power operation, the
mains must fail for at least this delay time.

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Protection
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 152
Configuration of the protection YES/NO
Configure
monitoring YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

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Generator Power Monitoring

It is possible to monitor two independently configurable generator power limit values. It is possible to output the
tripping to one of these freely configurable relays by means of the relay manager (relay manager function 56
and 80). This function makes it possible to initiate external load shedding.

NOTE
With this function no centralized alarm is issued and no message is displayed. A relay output is en-
abled which must be externally evaluated.

WARNING
This function does not operate as generator protection.
If generator protection is necessary, either the generator protection of this control (Parameter 164 and
Parameter 169) or an external protection device should be used.

Parameter 153
Generator power monitoring ON/OFF
Gen.power monit.
ON ON................ The generator power is monitored (relay manager function 56 and 80
must each be assigned to one relay). The subsequent screens of this
function are displayed.
OFF.............. Monitoring is not carried out, and the subsequent screens of this
function are not displayed.
Parameter 154
Power monitoring threshold value, level 1 0 to 9,999 kW
Gen.power monit.
resp.val1 0000kW If this threshold value has been exceeded for at least the delay time (Para-
meter 156), the relay assigned relay manager function 56 energizes.
Parameter 155
Power monitoring hysteresis, level 1 0 to 999 kW
Gen.power monit.
hyst.lv1 000kW If the monitored generator power level drops below the threshold value configured
in Parameter 154 by value configured here, hysteresis occurs and the relay de-
energizes.
Parameter 156
Power monitoring delay, level 1 0 to 650 s
Gen.power monit.
delay lv1 000s For the control unit to recognize a power monitoring fault condition, the threshold
value configured in Parameter 154 must be exceeded without interruption for this
period of time.
Parameter 157
Power monitoring threshold value, level 2 0 to 9,999 kW
Gen.power monit.
resp.val2 0000kW If this threshold value has been exceeded for at least the delay time (Para-
meter 159), the relay assigned relay manager function 80 energizes.
Parameter 158
Power monitoring hysteresis, level 2 0 to 999 kW
Gen.power monit.
hyst.lv2 000kW If the monitored generator power level drops below the threshold value configured
in Parameter 157 by value configured here, hysteresis occurs and the relay de-
energizes.
Parameter 159
Power monitoring delay, level 2 0 to 650 s
Gen.power monit.
delay lv2 000s For the control unit to recognize a power monitoring fault condition, the threshold
value configured in Parameter 157 must be exceeded without interruption for this
period of time.

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Mains Power Monitoring

It is possible to monitor two independently configurable generator power limit values. It is possible to output the
tripping to one of the freely configurable relays by means of the relay manager (relay manager function 67). This
function makes it possible to initiate external load shedding.

NOTE
With this function no centralized alarm is issued and no message is displayed. A relay output is en-
abled which must be externally evaluated.

WARNING
This function does not operate as generator protection.
If generator protection is necessary, either the generator protection of this control (Parameter 164 and
Parameter 169) or an external protection device should be used.

Parameter 160
Mains power monitoring ON/OFF
Mains power mon.
ON ON ................The generator power is monitored (relay manager function 67 must
be assigned to one relay). The subsequent screens of this function are
displayed.
OFF ..............Monitoring is not carried out, and the subsequent screens of this
function are not displayed.
Parameter 161
Power monitoring threshold value I/E 0 to 9,999 kW
Mains power mon.
res.val. I0000kW If this threshold value has been exceeded for at least the delay time (Para-
meter 163), the relay assigned relay manager function 57 energizes. Imported
power is entered with a " - " before the value, exported power is entered with a
" + " before the value. If the value is confirmed, the " - " becomes an " I " and the
" + " becomes an " E ".
Parameter 162
Power monitoring hysteresis 0 to 999 kW
Mains power mon.
hysteresis 000kW If the monitored generator power level drops below the threshold value configured
in Parameter 161 by value configured here, hysteresis occurs and the relay de-
energizes.
Parameter 163
Power monitoring delay 0 to 650 s
Mains power mon.
delay 000s For the control unit to recognize a power monitoring fault condition, the threshold
value configured in Parameter 161 must be exceeded without interruption for this
period of time.

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Generator Overload Monitoring

NOTE
All percentage values refer to a percentage of the generator rated power (Parameter 23; page 25).

Function: "Positive real power not within the permissible range" - The single-phase or three-phase measured
generator real power is above the configured limit value of the real power.
Parameter 164
Generator overload monitoring ON/OFF
Overload monit.
ON ON................ Monitoring of the generator real power will be performed. The sub-
sequent parameters of this function are displayed.
OFF.............. Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 165
Generator overload monitoring threshold value MOP 80 to 150 %
Gen.overload MOP
resp.value 000% If this threshold value has been exceeded for at least the delay time (Para-
meter 166), the following alarm class is initiated (MOP ..Mains Parallel Operation).
Issuing of class F2 alarm
without power reduction

Parameter 166
Generator overload monitoring delay 0 to 99 s
Gen.overload MOP
delay 00s For the control unit to recognize a generator overload monitoring fault condition,
the threshold value configured in Parameter 165 must be exceeded without inter-
ruption for this period of time (MOP ..Mains Parallel Operation).
Parameter 167
Generator overload monitoring threshold value IOP 80 to 150 %
Gen.overload IOP
resp.value 000% If this threshold value has been exceeded for at least the delay time (Para-
meter 168), the following alarm class is initiated (IOP ..Isolated Parallel Operation).
Issuing of class F2 alarm
without power reduction

Parameter 168
Generator overload monitoring delay 0 to 99 s
Gen.overload IOP
delay 00s For the control unit to recognize a generator overload monitoring fault condition,
the threshold value configured in Parameter 167 must be exceeded without inter-
ruption for this period of time (IOP ..Isolated Parallel Operation).

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Generator Reverse/Reduced Power Monitoring

NOTE
All percentage values refer to a percentage of the generator rated power (Parameter 23; page 25).

Function: "Real power not within the permissible range" - The real power measured in a single-phase or in a
three-phase system is below the configured limit value for the minimum load or below the configured value for
reverse power. By setting positive threshold values (minimum load monitoring), a shutdown can be performed
before the generator ends up in reverse power.
Parameter 169
Reverse/reduced power monitoring ON/OFF
Rev./red.power
monitoring ON ON ................Monitoring of the generator reverse/reduced power will be per-
formed. The subsequent parameters of this function are displayed.
OFF ..............Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 170
Reverse/reduced power monitoring threshold value -99 to 99 %
Rev./red.power
resp.value -00% Reverse power monitoring: If the current value falls below the negative threshold
value for at least the delay time (Parameter 171), the following alarm
class is initiated.
Reduced power monitoring: If the current value falls below the positive threshold
value for at least the delay time (Parameter 171), the following alarm
class is initiated.
Issuing of class F3 alarm

Parameter 171
Reverse power monitoring delay 0.0 to 9.9 s
Rev./red.power
delay 0.0s For the control unit to recognize a reverse/reduced power monitoring fault condi-
tion, the threshold value configured in Parameter 170 must be exceeded without in-
terruption for this period of time.

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Load Imbalance Monitoring

NOTE
All percentage values refer to a percentage of the generator rated power (Parameter 24; page 25).

Function: "Generator load imbalance not within the permissible range" - The percentage threshold value speci-
fies the permissible deviation of one phase current to the arithmetic mean value of all three phase currents.
Parameter 172
Load imbalance monitoring ON/OFF
Load unbalanced
monitoring ON ON................ Monitoring for load imbalance of the generator real power will be
performed. The subsequent parameters of this function are displayed.
OFF.............. Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 173
Maximum permissible load imbalance 0 to 100 %
Load unbalanced
max. 000% If the threshold value has been exceeded for at least the delay time (Parameter 174;
e.g. because of an asymmetric load), the following alarm class is initiated.
Issuing of class F3 alarm

Parameter 174
Load imbalance monitoring delay 0.02 to 9.98 s
Load unbalanced
delay 00.00s For the control unit to recognize a load imbalance monitoring fault condition, the
threshold value configured in Parameter 173 must be exceeded without interruption
for this period of time.

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Time-Overcurrent Monitoring

NOTE
All percentage values refer to a percentage of the generator rated power (Parameter 24; page 25).

Function: The GCP-30 utilizes a two tier time-overcurrent monitoring with separate adjustable time delays. The
threshold values and delays can be selected so that the monitored current level is independent from the tripping
time. The level 2 overcurrent is used as a fast-triggering high-current stage for protection against short circuits.
The level 1 overcurrent reacts overcurrents below level 2 but above permissible limits that are present over a
longer period of time.

I [%]

I >>
(I2)

I>
(I1)

t2 t1 t [s]
Figure 3-8: Characteristic of the time-overcurrent monitoring

Parameter 175
Overcurrent monitoring ON/OFF
Gen.overcurrent
monitoring ON ON ................Monitoring of the generator current will be performed for overcur-
rent. The subsequent parameters of this function are displayed.
OFF ..............Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 176
Threshold value overcurrent limit 1 0 to 300 %
Gen.overcurrent
limit 1 000% If the threshold value has been exceeded for at least the delay time (Parameter 177),
the following alarm class is initiated.
Issuing of class F3 alarm

Parameter 177
Independent time overcurrent, delay, limit 1 0.02 to 9.98 s
Gen.overcurrent
delay 1 00.00s For the control unit to recognize a time-overcurrent fault condition, the threshold
value configured in Parameter 176 must be exceeded without interruption for this
period of time.

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Parameter 178
Independent time overcurrent, threshold value, limit 2 0 to 300 %
Gen.overcurrent
limit 2 000% If this threshold value has been exceeded for at least the delay time (Para-
meter 179), the following alarm class is initiated.
Issuing of class F3 alarm

Parameter 179
Independent time overcurrent, delay, limit 2 0.02 to 9.98 s
Gen.overcurrent
delay 2 00.00s For the control unit to recognize a time-overcurrent fault condition, the threshold
value configured in Parameter 178) must be exceeded without interruption for this
period of time.
Parameter 180
Open GCB with coasting due to overcurrent ON/OFF
Gen.overcurrent
Cool down ON ON................ If the GCB is opened due to an overcurrent fault condition, an engine
cool-down is performed prior to engine stop.
OFF.............. The engine is stopped without a cool-down.

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Generator Frequency Monitoring

Function: "Generator frequency not within the permissible range" - The generator frequency is outside of the
limit values set for overfrequency or underfrequency. The engine is shut down immediately (class F3 alarm), and
an alarm message is displayed. The activation of generator underfrequency monitoring is delayed by means of
"Delayed engine monitoring" (Parameter 284) in order to enable correct generator start-up.
Parameter 181
Generator frequency monitoring ON/OFF
Gen.frequency-
monitoring ON ON ................Monitoring of the generator frequency will be performed. The subse-
quent parameters of this function are displayed.
OFF ..............Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 182
Threshold value: generator overfrequency 50.0 to 140.0 %
Gen.overfreq.
f > 000.0% L This value refers to the parameter "Rated freq. in system" (Parameter 11).

If this threshold value has been exceeded for at least delay time (Parameter 183),
the following alarm class is initiated.
Issuing of class F3 alarm

Parameter 183
Generator overfrequency delay 0.02 to 9.98 s
Gen.overfreq.
delay 0.00s For the control unit to recognize a generator overfrequency fault condition, the
threshold value configured in Parameter 182 must be exceeded without interruption
for this period of time.
Parameter 184
Generator underfrequency threshold value 50.0 to 140.0 %
Gen.underfreq.
f < 000.0% L This value refers to the parameter "Rated freq. in system" (Parameter 11).

If the current value has been fallen below this threshold value for at least the delay
time (Parameter 185), the following alarm class is initiated.
Issuing of class F3 alarm

Parameter 185
Generator underfrequency delay 0.02 to 9.98 s
Gen.underfreq.
delay 0.00s For the control unit to recognize a generator underfrequency fault condition, the
threshold value configured in Parameter 184 must be exceeded without interruption
for this period of time.

Engine Overspeed Monitoring

Parameter 186
Engine overspeed monitoring 0 to 9,999 rpm
Engine overspeed
> 0000 rpm The overspeed monitoring is performed in addition to and independent of the
generator frequency if the Magnetic Pickup Unit (MPU) has been enabled (Para-
meter 286). If the MPU has been disabled, the monitoring is disabled. If this thresh-
old value is been exceeded the following alarm class is initiated.
Issuing of class F3 alarm

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Generator Voltage Monitoring

The line-to-line (wye) voltage is monitored.

Function: "Generator voltage not within the permissible range" - If one or more phases of the generator voltage
exceeds the limit values set for overvoltage or undervoltage, the engine is shut down immediately (class F3
alarm) and an alarm message is displayed. The activation of generator undervoltage monitoring is delayed by
means of "Delayed engine monitoring" (Parameter 284) in order to enable generator start-up.
Parameter 187
Generator voltage monitoring ON/OFF
Gen.voltage
monitoring ON ON................ Monitoring of the generator voltage will be performed. The subse-
quent parameters of this function are displayed.
OFF.............. Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 188
Generator overvoltage threshold value 020,0 to 150,0 %
Gen.overvoltage
U > 000.0% L This value refers to the parameter "Rated volt. in system" (Parameter 19).

If this threshold value has been exceeded for at least the delay time (Para-
meter 189), the following alarm class is initiated.
Issuing of class F3 alarm

NOTE
The threshold value for generator overvoltage may not exceed 149 V [1] or 495 V [4] for delta connec-
tions, because higher voltages cannot be detected.

Parameter 189
Generator overvoltage delay 0.02 to 9.98 s
Gen.overvoltage
delay 0.00s For the control unit to recognize a generator overvoltage fault condition, the
threshold value configured in Parameter 188 must be exceeded without interruption
for this period of time.
Parameter 190
Generator undervoltage threshold value 020,0 to 150,0 %
Gen.undervoltage
U < 000.0% L This value refers to the parameter "Rated volt. in system" (Parameter 19).

If the current value has been fallen below this threshold value for the delay time
(Parameter 191), the following alarm class is initiated.
Issuing of class F3 alarm

Parameter 191
Generator undervoltage delay 0.02 to 9.98 s
Gen.undervoltage
delay 0.00s For the control unit to recognize a generator undervoltage fault condition, the
threshold value configured in Parameter 190 must be exceeded without interruption
for this period of time.

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Mains Frequency Monitoring

Monitoring the mains frequency is absolutely vital if a generator is operated in conjunction with the infinite grid.
In the event of mains failure (e.g. utility power outage) the generator that is operating in parallel with the utility
must be automatically disconnected from the mains. Decoupling from the mains only occurs when both power
circuit breakers (MCB and GCB) are closed.

The limit values configured below are utilized for the assessment emergency power operations if the following
parameters are enabled. The parameters below define if the mains are or aren’t present. The breaker opening
times do not affect these parameters.

Function: "Mains frequency not within the permissible range" - The mains frequency exceeds the limit values
configured for overfrequency or underfrequency. The power circuit breaker that disconnects from the mains is
immediately opened. The prerequisite of mains frequency monitoring is that the generator is operating in mains
parallel (the MCB and GCB are both closed).
Parameter 192
Mains frequency monitoring ON/OFF
Mains frequency
monitoring ON ON ................Monitoring of the mains frequency will be performed. The subse-
quent parameters of this function are displayed.
OFF ..............Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 193
Mains overfrequency threshold value 80.0 to 140.0 %
Mains overfreq.
f > 000.0% L This value refers to the parameter "Rated freq. in system" (Parameter 11).

If this threshold value has been exceeded for at least the delay time (Para-
meter 194), the following alarm class is issued. Depending on the configured mains
decoupling procedure, the GCB, MCB, or an external CB will be opened.
Issuing of class F0 alarm

Parameter 194
Mains overfrequency delay 0.02 to 9.98 s
Mains overfreq.
delay 0.00s For the control unit to recognize a mains overfrequency fault condition, the thresh-
old value configured in Parameter 193 must be exceeded without interruption for
this period of time.
Parameter 195
Mains underfrequency threshold value 80.0 to 140.0 %
Mains underfreq.
f < 000.0% L This value refers to the parameter "Rated freq. in system" (Parameter 11).

If the current value has been fallen below this threshold value for at least the delay
time (Parameter 196), the following alarm class is issued. Depending on the con-
figured mains decoupling procedure, the GCB, MCB, or an external CB will be
opened.
Issuing of class F0 alarm

Parameter 196
Mains underfrequency delay 0.02 to 9.98 s
Mains underfreq.
delay 0.00s For the control unit to recognize a mains underfrequency fault condition, the
threshold value configured in Parameter 195 must be exceeded without interruption
for this period of time.

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Mains Voltage Monitoring

Monitoring the mains voltage is absolutely vital if a generator is operated in conjunction with the infinite grid. In
the event of mains failure (e.g. utility power outage) the generator that is operating in parallel with the utility
must be automatically disconnected from the mains. Decoupling from the mains only occurs when both power
circuit breakers (MCB and GCB) are closed.

The line-to-line (wye) voltage is monitored in all cases.

The limit values configured below are utilized for the assessment emergency power operations if the following
parameters are enabled. The parameters below define if the mains are or aren’t present. The breaker opening
times do not affect these parameters.

Function: "Mains voltage not within the permissible range" - If one or more phases of the generator voltage ex-
ceeds the limit values set for overvoltage or undervoltage, the power circuit breaker that disconnects from the
mains is immediately opened. The prerequisite of mains voltage monitoring is that the generator is operating in
mains parallel (the MCB and GCB are both closed).
Parameter 197
Mains voltage monitoring ON/OFF
Mains voltage
monitoring ON ON................ Monitoring of the mains voltage will be performed. The subsequent
parameters of this function are displayed.
OFF.............. Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 198
Mains overvoltage threshold value 20.0 to 150.0 %
Mains overvolt.
U > 000.0% L This value refers to the parameter "Rated volt. in system" (Parameter 19).

If this threshold value has been exceeded for at least the delay time (Para-
meter 199), the following alarm class is issued. Depending on the configured mains
decoupling procedure, the GCB, MCB, or an external CB will be opened.
Issuing of class F0 alarm

Parameter 199
Mains overvoltage delay 0.02 to 9.98 s
Mains overvolt.
delay 0.00s For the control unit to recognize a mains overvoltage fault condition, the threshold
value configured in Parameter 198 must be exceeded without interruption for this
period of time.
Parameter 200
Mains undervoltage threshold value 20.0 to 150.0 %
Mains undervolt.
U < 000.0% L This value refers to the parameter "Rated volt. in system" (Parameter 19).

If the current value has been fallen below this threshold value for the delay time
(Parameter 201), the following alarm class is issued. Depending on the configured
mains decoupling procedure, the GCB, MCB, or an external CB will be opened.
Issuing of class F0 alarm

Parameter 201
Mains undervoltage delay 0.02 to 9.98 s
Mains undervolt.
delay 0.00s For the control unit to recognize a mains undervoltage fault condition, the threshold
value configured in Parameter 200 must be exceeded without interruption for this
period of time.

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Phase/Vector Shift Monitoring dϕ/dt

A phase/vector shift is a sudden change in the voltage curve that is caused by a large generator load change. The
measuring circuit detects a change in a single sine wave. This sine wave is compared with a calculated mean
value from previous measurements. Monitoring encompasses all three phases. The threshold value in degrees
specifies the difference in time between the mean and the measured value in reference to a full cycle. Monitoring
can be set in various manners. The phase/vector shift watchdog may be used as an additional means for decoup-
ling from the mains. The minimum voltage that the phase shift is activated is 70 % of the rated secondary volt-
age.

Function: "Voltage cycle duration not within the permissible range" - The voltage cycle duration exceeds the
configured limit value for the phase/vector shift. The result is the power circuit breaker that disconnects from the
mains is opened and an alarm message is displayed. The prerequisite for phase/vector shift monitoring is that the
generator is operating in a mains parallel operation (the MCB and GCB are both closed).
Parameter 202
Phase/vector shift monitoring ON/OFF
Phase shift
monitoring ON ON ................Monitoring of the mains frequency will be performed for
phase/vector shift. The subsequent parameters of this function are
displayed.
OFF ..............Monitoring is disabled, and the subsequent screens of this function
are not displayed.
Parameter 203
Phase/vector shift monitoring one-/threephase / only threephase
Monitoring
---------------- one-/threephase..During single-phase voltage phase/vector shift monitoring, trip-
ping occurs if the phase/vector shift exceeds the configured threshold
value (Parameter 204) in at least one of the three phases. Note: If a
phase/vector shift occurs in one or two phases, the single-phase
threshold value (Parameter 204) is taken into consideration; if a
phase/vector shift occurs in all three phases, the three-phase thresh-
old value (Parameter 205) is taken into consideration. Single phase
monitoring is very sensitive and may lead to nuisance tripping if the
selected phase angle settings are too small.
only threephase..During three-phase voltage phase/vector shift monitoring, trip-
ping occurs only if the phase/vector shift exceeds the specified thres-
hold value (Parameter 205) in all three phases within 2 cycles.
Issuing of class F0 alarm

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NOTE
If monitoring is configured to "threephase", only the second of the following two parameters is visi-
ble; if monitoring is configured to "one-/threephase", both parameters are visible.

Parameter 204
Phase/vector shift monitoring threshold value single-phase 3 to 30 °
Phase shift
one-phase 00° If the electrical angle of the mains voltage shifts more than this configured value in
This screen is visible only any single phase, a class F0 alarm is initiated. Depending on the configured mains
if monitoring is configured to decoupling procedure, the GCB, MCB, or an external CB will be opened.
"one/three-phase".

Parameter 205
Phase/vector shift monitoring threshold value three-phase 3 to 30 °
Phase shift
three-phase 00° If the electrical angle of the mains voltage shifts more than this configured value in
all three phases, a class F0 alarm is initiated. Depending on the configured mains
decoupling procedure, the GCB, MCB, or an external CB will be opened.

Mains Settling Time

Parameter 206
Mains settling time 0 to 999 s
Mains settling
time 000s It is possible to delay the synchronization of the generator to the mains for the pe-
riod of time configured here. This will permit the user to ensure that the mains volt-
age is stable while the generator continues to operate in an isolated (parallel) mode
or idle offline.

Note
For devices with one circuit breaker, refer also to Parameter 112.

If a GCP-32 has both the MCB and GCB open and the mains return, the mains set-
tling time is reduced to 2 seconds when the mains return if the mains settling time
is configured for longer.

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Battery Voltage Monitoring

Parameter 207
Battery voltage monitoring: Threshold value 9.5 to 30.0 V
Batt.undervolt.
U < 00.0V If the measured value falls below this threshold value for at least the delay time
(Parameter 208), the following alarm class is issued.
Issuing of class F1 alarm

Parameter 208
Battery undervoltage delay 0 to 99 s
Batt.undervolt.
delay 00s For the control unit to recognize a battery undervoltage fault condition, the thresh-
old value configured in Parameter 207 must be exceeded without interruption for
this period of time.

Note: Regardless of the configured battery voltage monitoring threshold, readiness

for operation is withdrawn and an alarm message is issued if the power supply volt-
age falls below 9 Vdc or if the power supply voltage falls below 11 Vdc during the
start sequence.

Time Of Active Horn

Parameter 209
Horn acknowledgment after 1 to 9.999 s
Horn self reset
0000s The horn (centralized alarm) will remain active for the time configured and then
deactivate (acknowledged) automatically.

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Discrete Inputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 210
Configuration of discrete inputs YES/NO
Configure
dig.inputs YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES .............. The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO................ The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

NOTE
The discrete inputs can be used as alarm inputs or control inputs. If they were configured as alarm in-
puts (Parameter 216 to Parameter 222 are configured to "OFF") the parameters in "Alarm Inputs"
(page 104) are valid. If they have been configured as control inputs (Parameter 216 to Parameter 222
are configured to "ON") the parameters in "Control Inputs" (page 106) are valid.

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Alarm Inputs
Discrete input 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Name 1 2 3 4 5 6 7 8 9 A B C D E F G
Terminal 34 35 36 61 62 63 64 65 66 67 68 69 70 71 72 73
Function A A A A A/C A/C A/C A A A/C A A A/S A A A
A..Alarm input; A/C..Alarm or control input (dependent on the configuration)

NOTE
Operating current (NO): The relay is enabled (i.e. in the operating state) when current flows through the
coil. If a loss of the supply voltage occurs, a change of state will not occur in the relay and no trig-
gering of fault conditions occur. In this mode of operation the condition of the system should me
monitored though other means than the state of the relay.
Closed circuit current (NC): The relay is disabled (i.e. in idle state) when current flows through the coil.
If a loss of the supply voltage occurs, a change of state will occur in the relay and a triggering of
fault conditions will occur.

Relay programmed as 'operating current relay' Relay programmed as 'idle-current relay'

24 V 24 V
Operating current Idle-current
contact contact
RELEASE RELEASE
Idle-current Operating current
contact contact
no current flow
current flow

RELEASE RELEASE
Relay operates Relay releases

0V 0V

Figure 3-9: NO/NC logic

Example: Discrete inputs 1 through 4 (same procedure for inputs 5-16)

Parameter 211
Function of the discrete alarm inputs 1 to 4 E/D
Dig.input 1234
function EEEE The discrete inputs may be operated by an operating current contact or a closed cir-
cuit current contact. The closed circuit current input may be used to monitor for a
wire break. A positive or negative voltage difference may be utilized.
E ...................The discrete input is analyzed as "enabled" by applying of a voltage
difference (NO/operating current; E = enable to operate).
D ...................The discrete input is analyzed as "enabled" by removal of a voltage
difference (NC/idle current; D = disable to operate).

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Parameter 212
Delay time of the discrete alarm inputs 1 to 4 0 to 9
Dig.input 1234
delay 0000 A delay time in stages can be assigned to each alarm input. The individual stages
are listed below. The discrete input must be present without interruption throughout
the delay time in order to be "enabled".

Delay stage Delay stage

0 100 ms
1 200 ms
2 500 ms
3 1s
4 2s
5 5s
6 10 s
7 20 s
8 50 s
9 100 s
Table 3-10: Discrete alarm inputs - delay stages

Parameter 213
Delayed by firing speed of the discrete alarm inputs 1 to 4 Y/N
Delayed by 1234
eng.speed YYYY If the discrete input used as an alarm input is only to be monitored when the engine
is running ("firing speed reached") is specified here.
Y ................... After engine monitoring has been enabled the discrete input is moni-
tored.
N ................... The discrete input is always monitored.
Parameter 214
Alarm class of the discrete alarm inputs 1 to 4 F0 to F3
Dig.input 1234
error class 0000 Different alarm classes can be assigned to each discrete alarm input. The alarm
classes are listed below.

The monitoring functions are divided into four alarm classes:

F0 - Warning alarm - This alarm does not lead to an interruption of the operation. An alarm message is dis-
played without a centralized alarm (horn)
Æ Alarm text.
F1 - Warning alarm - This alarm does not lead to an interruption of the operation. A centralized alarm is issued.
Æ Alarm text + flashing "alarm" LED + group alarm relay (horn).
F2 – Triggering alarm - This alarm leads to the shutdown of the engine. A power reduction is performed prior
to the GCB being opened. An engine cool down is performed.
Æ Alarm text + flashing "alarm" LED + group alarm relay (horn) + cool down.
F3 – Triggering alarm - This alarm leads to the immediate opening of the GCB and shutdown of the engine.
Æ Alarm text + flashing "alarm" LED + group alarm relay (horn) + shutdown.

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Configuring The Text For The Discrete Inputs

NOTE
If terminal 6 is configured to "Sprinkler operation" (override or critical mode; Parameter 223) or if a gas
engine is selected (Parameter 267), the EMERGENCY STOP function must always be assigned to ter-
minal 34. If terminal 34 is not a discrete input, the EMERGENCY STOP function is assigned to the dis-
crete input with the lowest terminal number (this discrete input is then normally the input with terminal
number 61).

NOTE
Certain special characters, numbers, upper and lower case letters may be set.

NOTE
If the unit is equipped with a second interface (Y1-Y5), the alarm texts can only be configured via
LeoPC1.

Parameter 215
Setting the alarm texts
Errortxt.term.34
EMERGENCY STOP These parameters are used to enter the alarm texts (in this example for terminal 34
the alarm text "EMERGENCY STOP"). The text for these parameters is user de-
fined. Terminal 34 is the recommended terminal to assign EMERGENCY STOP
functions to.

Control Inputs

Acknowledge firing speed via terminal 62

Parameter 216
Firing speed reached via terminal 62 ON/OFF
Firing speed by
Term. 62 ON OFF ..............This terminal is used as an alarm input.
ON ................Configuring the starting sequence logic:
If Parameter 211 is configured to "E", the discrete input utilizes
“N.O.” contacts and the starter disengages when the status of this
discrete input becomes TRUE. Once the delayed engine monitoring
time has expired, the discrete input changes to "N.C." logic internally
even though "N.O." logic is still programmed This permits the con-
troller to generate an alarm condition in the event of a voltage loss
(including a configured time delay). This input will operate on the
inverse of this principle as well. If Parameter 211 is configured to
"D", the discrete input utilizes "N.C." logic to disengage the starter in
the event of a voltage loss. Once the delayed engine monitoring has
expired, the discrete input changes to "N.O." logic internally even
though "N.C." logic is still programmed and will initiate an alarm as
soon as voltage is applied.

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Block operation mode selector switch via terminal 63

Parameter 217
Disabling the change of the mode using terminal 63 ON/OFF
Op.mode blocked
by Ter.63 ON OFF.............. This terminal is used as an alarm input.
ON................ Terminal 63 is used as control input.
If terminal 63 is energized, the operation mode cannot be changed
using the pushbuttons on the face of the control unit.

If this input is configured as control input and energized, it is possible for units with Option A2 from version
4.3010 to select the operation mode externally using the control inputs at terminals 127 and 128. The functional-
ity is described in the following table:

Operation Input Input Function

mode blocked STOP AUTOMATIC
(terminal 63) (terminal 127) (terminal 128)
de-energized not applicable not applicable The operation mode can be selected using the buttons at the front of
the GCP. (The terminals 127/128 have no effect.)
energized de-energized de-energized No change in operation mode. After connecting the supply voltage,
the unit is in STOP operation mode. The operation mode selection
buttons at the front of the GCP are blocked.
energized energized de-energized The STOP operation mode is activated. After connecting the supply
voltage, the unit is in STOP operation mode. The operation mode se-
lection buttons at the front of the GCP are blocked.
energized de-energized energized The AUTOMATIC operation mode is activated. After connecting the
supply voltage, the unit changes to AUTOMATIC operation mode via
STOP.
energized energized energized The STOP operation mode is activated. After connecting the supply
voltage, the unit is in STOP operation mode. The operation mode se-
lection buttons at the front of the GCP are blocked.
Table 3-11: Function - external operation mode selection

Change breaker logic via terminal 64

Parameter 218
Breaker logic via terminal 64 ON/OFF
Breaker logic
by Term64 ON OFF.............. This terminal is used as an alarm input.
ON................ This terminal is used as control input.
• High signal If this terminal utilizes a HIGH signal (energized),
the breaker logic of Parameter 219 will be used.
• Low signal If this terminal utilizes a LOW signal (de-energized),
the breaker logic of Parameter 117 will be used.
Parameter 219
Breaker logic via terminal 64 see page 65
Breaker logic:
---------------- Selection of the breaker logic that is to be used once terminal 64 is enabled. This
Visible only if breaker logic via parameter is only visible if Parameter 218 has been configured to ON (for the
terminal 64 is configured to description of the breaker logic note chapter "Breaker logic", page 67).
"ON".

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Enable 'Close GCB without engine delay' via terminal 67

Parameter 220
Close GCB before the del. engine monit. expires via terminal 67 ON/OFF
Close GCB asap
by Ter.67 ON OFF ..............This terminal is used as an alarm input.
ON ................This terminal is used as control input.
• High signal If this terminal utilizes a HIGH signal (energized),
the GCB closes before the delayed engine monitoring
expires.
• Low signal If this terminal utilizes a LOW signal (de-energized),
the GCB closes after the delayed engine monitoring
has been expires.

Enable 'Emergency OFF' via terminal 68

Parameter 221
Prevent an emergency power operation via terminal 68 ON/OFF
Emergency OFF
by Ter.68 OFF OFF ..............This terminal is used as an alarm input.
only version 4.3010 or later ON ................This terminal is used as control input.
• High signal If this terminal utilizes a HIGH signal (energized), an
emergency power operation is prevented or termi-
nated. The unit operates as if Parameter 150 "Emer-
gency power" is disabled.
• Low signal If this terminal utilizes a LOW signal (de-energized),
the setting of Parameter 150 "Emergency power" is
taken over.

Enable 'Idle mode' via terminal 70

Parameter 222
Enable idle mode via terminal 70 ON/OFF
Idle Mode
by term.70 ON OFF ..............This terminal is used as an alarm input.
ON ................This terminal is used as control input. The relay programmed with
the relay manager function 133 reacts together with the logical status
of terminal 70 according to the configured NO/NC logic and invert-
ing the relay output. This relay must be wired to the "idle input" of
the speed governor normally.
• High signal Energizing the terminal 70 discrete input enables the
idle mode. The message "Idle Mode" is displayed in
all operational modes (except STOP mode) when a
start request is initiated and during the postrun time
so long as there are no other message with a higher
display priority (i.e. preglow). The generator under-
voltage and underfrequency protections are disabled
while in the idle mode and the warning limit value
for the oil pressure VDO input is suppressed. These
protections are enabled after terminal 70 is de-
energized and the monitored frequency is measured
within 1 Hz of the rated generator frequency or after
60 seconds passes, which ever occurs first.
• Low signal The idle mode is disabled and the protections become
active again (see above description).

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Terminal 6

ATTENTION
The various functions of terminal 6 are enabled at different signal levels!

Parameter 223
Function of terminal 6
Function term.6
---------------- This parameter is used to assign a function to the terminal 6 discrete input. The fol-
lowing functions may be selected for the discrete input:

• Sprinkler operation By de-energizing terminal 6 (setting a LOW signal), the sprinkler operation (critical mode)
is enabled in accordance with the functional description. The sprinkler operation is termi-
nated by energizing terminal 6 (application of a HIGH signal). For a description of the
sprinkler operation function read "Sprinkler (critical) operation" on page 110).

Note: No load-dependent starting and stopping is possible in sprinkler operation.

Attention: This is a negative logic function!

• Engine enabled Terminal 6 has the same function as the STOP push-button: De-energizing terminal 6 (appli-
cation of a LOW signal) prevents the engine from starting and stops the engine if it is al-
ready running. Applying a HIGH signal enables the starting of the engine

Attention: By the use of this function, the emergency power operation may be aborted or
prevented. The emergency power operation is not possible without enabling this function!
The enable engine function only functions in the AUTOMATIC operation mode.

• Ext. acknowledgment Alarms can be acknowledged externally by energizing terminal 6 (change from a LOW to a
HIGH signal) in the STOP and AUTOMATIC operation modes. In order to achieve addi-
tional acknowledgements, terminal 6 must first be de-energized and then energized again. If
terminal 6 is continuously energized (HIGH signal), there is no effect on the acknowledge-
ment and suppression of alarm messages.

• STOP mode By energizing terminal 6 (application of a HIGH signal) the STOP mode is enabled. If the
signal is removed (de-energized), the operation mode will revert back to the mode that was
active prior to terminal 6 being energized.

• Engine blocked By energizing terminal 6 (application of a HIGH signal) a start of the engine can be pre-
vented. If the engine is running due to an active emergency power operation, energizing this
discrete input will stop it. The discrete input is not inverted. The engine block function is
only possible in the AUTOMATIC operation mode.

• Start without CB If the terminal 6 is energized, the engine starts. No synchronization is performed and the
GCB is not closed (no switching to dead busbar). The GCB is closed only if an emergency
power operation is enabled. After the return of the mains, the load is transferred to the mains
according to the configured breaker logic. An engine start command from terminal 6 is a
higher priority than a start command from terminals 3/5. If terminal 6 is selected, termi-
nals 3/5 are ignored. If the generator is in a mains parallel operation mode with "Parallel"
breaker logic and terminal 6 is energized, the GCB is opened following a power reduction.
The generator will continue to operate without load and an open GCB.

Note: No load-dependent starting and stopping is possible in sprinkler operation.

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Starting without closing GCB

Parameter 224
Perform engine cool down if starting without CB has been selected ON/OFF
Start withno GCB
cool down ON ON ................After removing the start request, an engine cool down is performed
Only if terminal 6 has been con- for the time configured in Parameter 283.
figured to "start without CB". OFF ..............After removing the start request, the engine is stopped immediately
without an engine cool down.

Sprinkler alarm classes during Sprinkler coasting

Parameter 225
Sprinkler alarm classes only active if terminal 6 is active ON/OFF
Sprinkler shutd.
F1 active ON ON ................If terminal 6 is configured as "Sprinkler operation", the primary
Only if terminal 6 has been alarm classes will be enabled again after the sprinkler coasting has
configured to expired (energizing terminal 6 and sprinkler coasting 10 minutes).
"Sprinkler operation".
OFF ..............If terminal 6 has been configured to "Sprinkler operation", the pri-
mary alarm classes will be enabled again after the sprinkler demand
has concluded (energizing terminal 6).

Sprinkler (critical) operation

NOTE
The function "Sprinkler operation" must be assigned to terminal 6.

ATTENTION
Please note that terminal 6 must be energized (apply a HIGH signal) so that a Sprinkler (critical) opera-
tion is not performed. De-energizing terminal 6 (a LOW signal) initiates a Sprinkler (critical) operation Ö
negative logic function.

Sprinkler "ON": If the signal at terminal 6 drops to a Low signal (de-energizes), the Sprinkler (critical) opera-
tion ON command is initiated. The message "Sprinkler operation" is shown on the display. Up to 6 attempts are
made to start the engine if it is not in operation. All fault conditions, which result in a shutdown, become mes-
sages with the exceptions of terminals 34 or 61 and overspeed. The alarm input for terminal 34 retains its set
alarm class. Terminal 61 is used for this if terminal 34 is not present on the control. It is recommended that
EMERGENCY STOP be assigned to one of these terminals.

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NOTE
If "Sprinkler operation" (terminal 6) has been activated, class F2 and F3 alarms are converted to class
F1 alarms (exception: terminal 34 or 61 and overspeed).
Class F2 and class F3 alarms Ö Class F1 alarm

"Sprinkler shutdown F1 active": Parameter 225 permits the user to select whether the Sprinkler alarm classes
are active during the Sprinkler coasting or if the primary alarm class will be active after the Sprinkler (critical
mode) request (terminal 6) has terminated.

A distinction is made between three operating conditions:

Mains
1.) MCB is closed
MCB (Ö mains voltage available):
a) The engine is stopped: The engine will be started and
Busbar
the GCB will not be closed.
b) The engine runs with the GCB open.
GCB Sprinkler
pump
2.) MCB is opened
(Ö mains voltage not available and the Parameter 150 "Emergency power" is ON)
G M a) The GCB will be closed or remains closed.
b) In the event of a generator overload, the GCB will open
Following the alarm acknowledgement the GCB will be closed again.
Figure 3-12: Sprinkler operation

3.) MCB is open

(Ö mains voltage available):
a) The MCB will be synchronized,
b) Following the synchronization of the MCB, the GCB will be opened.

Sprinkler "OFF": Disabling the Sprinkler (critical) mode discrete input (energizing terminal 6) terminates the
Sprinkler ON command and the message "Sprinkler coasting" appears on the display screen. The message
"Sprinkler coasting" appears. The Sprinkler (critical mode) operation is automatically finished 10 minutes later.
Earlier termination can be achieved by the changing into the STOP mode. When the Sprinkler (critical mode)
operation has concluded, fault conditions that result in shutdowns are enabled again.

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Analog Inputs (Package XP, Option T701)

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 226
Configuration of analog inputs YES/NO
Configure
analg.inp. YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Setting The Analog Inputs

Note
The analog inputs [T1] to [T7] are only available in the XP packages as well as the T701 option. The following
specification for the inputs is possible:

• Scaleable analog input 0/4 to 20 mA (page 113),

• Pt100 input (page 112), and
• VDO input (temperature, page 115 or pressure, page 116).

Analog input 1 2 3 4 5 6 7
Assignment 0/4 to 20 mA Pt100 VDO #1 VDO #2
Terminal 93/94/95 96/97/98 99/100/101 101/102/103 104/105/106 107/108/109 110/111/112
Function Alarm input/Control input1 Alarm input
VDO #1 = 0 to 180 Ohm, VDO #2 = 0 to 380 Ohm

NOTE
If you want to visualize the analog inputs via the PC program LeoPC1 (Firmware Version 4.0.xxx or
higher) please note the following:
1. Establish a connection between LeoPC1 and the GCP-30.
2. Select in the menu "Devices" the topic "Refresh Configuration".
3. Restart LeoPC1 according to the requests.

1 The 0/4 to 20 mA inputs can be configured with the functions "Real power set value", "Mains interchange (import/export) real power actual
value" or "Alarm input". Read the description in this manual.
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Scaleable analog input 0/4 to 20 mA (analog input [T1]-[T3])

NOTE
The scalable analog inputs 0/4 to 20 mA can be configured alternatively for the following functions:
• Mains interchange (import/export) real power actual value, or
• real power set point value.
If one of the both functions is assigned to an available 0/4 to 20 mA input T{x} (see Parameter 25 and
Parameter 84), the corresponding analog input T{x} must be configured to OFF. The analog input can
no longer be used as an alarm input.

Priority of the analog input functions

The following priority is valid if more than one function has been assigned to a analog input:
• Highest priority: Mains interchange (import/export) real power actual value measurement
• Middle priority: Real power set point value
• Lowest priority: Measuring input as common analog value

0/4 to 20 mA sensors may be measured here. A description and an engineering unit may be assigned to the input.
The analog input is displayed with its description. Two limit levels can be monitored. The first limit level initi-
ates a class F1 alarm, the second limit level initiates a class F3 alarm.
Parameter 227
0/4 to 20 mA input; enable/disable ON/OFF
Analog input x
scalable ON ON................ The value of this input appears in the display, and monitoring is en-
[x = 1 to 3] abled. The subsequent parameters of this function are displayed.
OFF.............. No display or monitoring is performed, and the subsequent parame-
ters of this function are not displayed.

NOTE
If the unit is equipped with a second interface (Y1-Y5), this parameter can only be configured via
LeoPC1.

Parameter 228
0/4 to 20 mA input; description User defined text
Name and unit
---------------- The description of the analog input may be programmed using this parameter. A
maximum of four zeros may be used as placeholders for the numerical measuring
values. Characters may divide the placeholders (i.e. a comma). The measured val-
ues subsequently appear wherever the zeros are placed.

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Parameter 229
0/4 to 20 mA input; measuring range 0 to 20 mA / 4 to 20mA
Analog input x
0-00mA The measuring range 0 to 20 mA or 4 to 20 mA is selected via this parameter. If 4
[x = 1 to 3]
to 20 mA is configured and a current of less than 2 mA is measured, the controller
assumes a wire break has occurred (see below).
Parameter 230
0/4 to 20 mA input; smallest input value -9,999 to 9,999
Value at
0% 0000 The user must assign a numeric value to the scaleable analog input that corresponds
to the smallest input value Æ Definition of the lower value (i.e. 0 %, 0 kW, 0 V) at
the minimum analog input value of 0 mA or 4 mA.
Parameter 231
0/4 to 20 mA input; largest input value -9,999 to 9,999
Value at
100% 0000 The user must assign a numeric value to the scaleable analog input that corresponds
to the largest input value Æ Definition of the upper value (i.e.100 %, 500 kW,
400 V) at the maximum analog input value of 20 mA.
Parameter 232
0/4 to 20 mA input; limit value for class F1 alarm -9,999 to 9,999
Limit warning
value -0000 If the measured value exceeds or falls below this configured threshold value (se-
lected by Parameter 235) for at least the delay time (Parameter 234), the following
alarm class is initiated.
Issuing of class F1 alarm

Parameter 233
0/4 to 20 mA input; limit value for class F3 alarm -9,999 to 9,999
Limit shutdown
value -0000 If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 235) for at least the delay time (Parameter 234), the fol-
lowing alarm class is initiated.
Issuing of class F3 alarm

Parameter 234
0/4 to 20 mA input; delay time for limit values of class F1 and F3 alarm 0 to 650 s
Delay
limit 1/2 000s In order to initiate an alarm, the measured value (Parameter 232 or Parameter 233)
must be over or under the configured threshold value (selected by Parameter 235)
without interruption for at least this time.
Parameter 235
0/4 to 20 mA input; monitoring for ... high limit mon. / low limit mon.
Monitoring for
---------------- A fault condition is recognized when the measured value has exceeded or fallen be-
low the threshold value (Parameter 232 or Parameter 233).
high limit mon.: The measured value must exceed the threshold value.
low limit mon.: The measured value must fall below the threshold value.

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Pt100 Input (Analog Input [T4] to [T5])

Pt100 inputs may be measured here. The analog input is displayed with its description. Two threshold limits can
be monitored. The first level initiates a class F1 alarm, the second level initiates a class F3 alarm.
Parameter 236
Pt100 input; enable/disable ON/OFF
Temperature x
Pt100 ON ON................ The value of this input appears in the display, and monitoring is en-
[x = 4 to 5] abled. The subsequent parameters of this function are displayed.
OFF.............. No display or monitoring is performed, and the subsequent parame-
ters of this function are not displayed.

NOTE
If the unit is equipped with a second interface (Y1-Y5), the alarm texts can only be configured via
LeoPC1.

Parameter 237
Pt100 input; description User defined text
***name****
-----------000°C The description of the analog input may be programmed using this parameter. A
maximum of eleven characters may be used to describe the measured value. In the
event of an alarm, the description and the monitored value are displayed with an
exclamation mark before the temperature.
Parameter 238
Pt100 input; limit value for class F1 alarm 0 to 200 °C
Limit
warning 000°C If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 241) for at least the delay time (Parameter 240), the fol-
lowing alarm class is initiated.
Issuing of class F1 alarm

Parameter 239
Pt100 input; limit value for class F3 alarm 0 to 200 °C
Limit
shutdown 000°C If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 241) for at least the delay time (Parameter 240), the fol-
lowing alarm class is initiated.
Issuing of class F3 alarm

Parameter 240
Pt100 input; delay time for limit values of class F1 and F3 alarm 0 to 650 s
Delay
limit 1/2 000s In order to initiate an alarm, the measured value (Parameter 238 or Parameter 239)
must be over or under the configured threshold value (dependent upon Para-
meter 241) without interruption for at least this time.
Parameter 241
Pt100 input; monitoring for ... high limit mon. / low limit mon.
Monitoring for
---------------- A fault condition is recognized when the measured value has exceeded or fallen be-
low the threshold value (Parameter 238 or Parameter 239).
high limit mon.: The measured value must exceed the threshold value.
low limit mon.: The measured value must fall below the threshold value.

NOTE
If temperature limit monitoring is not required, a threshold value, which is higher than the expected
temperature must be configured to the corresponding parameter (e.g. the ambient temperature is
100 °C).

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VDO Input 'Pressure' (Analog Input [T6])

NOTE
The default threshold values are configured in "bar". If the unit "psi" is configured (Parameter 157) the
display of the measured values as well as the transmission via the interface appears in "psi".

VDO inputs for pressure may be measured here. The analog input is displayed with its description. Two thresh-
old levels can be monitored. The first level initiates a class F1 alarm, the second level initiates a class F3 alarm.
Parameter 242
VDO input, pressure; enable/disable ON/OFF
Analog input 6
VDO ON ON ................The value of this input appears in the display, and monitoring is en-
abled. The subsequent parameters of this function are displayed.
OFF ..............No display or monitoring is performed, and the subsequent parame-
ters of this function are not displayed.

NOTE
If the unit is equipped with a second interface (Y1-Y5), the alarm texts can only be configured via
LeoPC1.

Parameter 243
VDO input, pressure; description User defined text
Name and unit
---------------- The description of the analog input may be programmed using this parameter. A
maximum of four zeros may be used as placeholders for the numerical measured
values. Characters may divide the placeholders (i.e. a comma). The measured val-
ues subsequently appear wherever the zeros are placed. The measured value will
always be displayed and transmitted via the interface in bar [× 0.1] or psi [× 0.1].
Parameter 244
VDO input, pressure; measuring range 0 to 5 / 0 to 10 bar
Analog input 6
VDO 0-00bar The measuring range of the analog input can be selected.
0 to 5 bar ......Measuring range 0 to 180 Ohm
0 to 10 bar ....Measuring range 0 to 180 Ohm
Parameter 245
VDO input, pressure; limit value for class F1 alarm 0.0 to 10.0 bar
Limit warning
value 00.0bar If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 248) for at least the delay time (Parameter 247), the fol-
lowing alarm class is initiated.
Issuing of class F1 alarm

Parameter 246
VDO input, pressure; limit value for class F3 alarm 0.0 to 10.0 bar
Limit shutdown
value 00.0bar If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 248) for at least the delay time (Parameter 247), the fol-
lowing alarm class is initiated.
Issuing of class F3 alarm

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Parameter 247
VDO input, pressure; delay time for limit values of class F1 and F3 alarm 0 to 650 s
Delay
limit 1/2 000s In order to initiate an alarm, the measured value must be over or under (dependent
upon Parameter 248) the threshold value (Parameter 245 or Parameter 247) without
interruption for at least this time.
Parameter 248
VDO input, pressure; monitoring for ... high limit mon. / low limit mon.
Monitoring for
---------------- A fault condition is recognized when the measured value has exceeded or fallen be-
low the threshold value (Parameter 245 or Parameter 247).
high limit mon.: The measured value must exceed threshold.
low limit mon.: The measured actual value must fall below the threshold value.

VDO Input 'Temperature' (Analog Input [T7])

VDO inputs may be measured here (the input has been calibrated to the VDO sender 323.805/001/001 (0 to
380 ohm, 40 to 120 °C). The analog input is displayed with its description. Two threshold levels can be moni-
tored. The first level initiates a class F1 alarm, the second level initiates a class F3 alarm.

Figure 3-13: VDO transmitter 323.805/001/001 (slope)

Parameter 249
VDO input, temperature; enable/disable ON/OFF
Analog input 7
VDO ON ON................ The value of this input appears in the display, and monitoring is en-
abled. The subsequent parameters of this function are displayed.
OFF.............. No display or monitoring is performed, and the subsequent parame-
ters of this function are not displayed.

NOTE
If the unit is equipped with a second interface (Y1-Y5), the alarm texts can only be configured via
LeoPC1.

Parameter 250
VDO input, temperature; description User defined text
Name and unit
---------------- The description of the analog input may be programmed using this parameter. A
maximum of four zeros may be used as placeholders for the numerical measured
values. Characters may divide the placeholders (i.e. a comma). The measured val-
ues subsequently appear wherever the zeros are placed. The measured values sub-
sequently appear wherever the zeros are placed.
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Parameter 251
VDO input, temperature; limit value for class F1 alarm 40 to 120 °C
Limit warning
value 000°C If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 254) for at least the delay time (Parameter 253), the fol-
lowing alarm class is issued.
Issuing of class F1 alarm

Parameter 252
VDO input, temperature; limit value for class F3 alarm 40 to 120 °C
Limit
shutdown 000°C If the measured value exceeds or falls below this configured threshold value (de-
pendent upon Parameter 254) for at least the delay time (Parameter 253), the fol-
lowing alarm class is issued.
Issuing of class F3 alarm

Parameter 253
VDO input, temperature; delay time for limit values of class F1 and F3 alarm 0 to 650 s
Delay
limit 1/2 000s In order to initiate an alarm, the measured value must be over or under (dependent
upon Parameter 254) the threshold value (Parameter 251 or Parameter 252) without
interruption for at least this time.
Parameter 254
VDO input, temperature; monitoring for ... high limit mon. / low limit mon.
Monitoring for
---------------- A fault condition is recognized when the measured value has exceeded or fallen be-
low the threshold value (Parameter 251 or Parameter 252).
high limit mon.: The measured value must exceed threshold value.
low limit mon.: The measured value must fall below the threshold value.

Monitoring Of The Measuring Range (All Analog Inputs)

Parameter 255
Analog inputs; monitoring of the measuring range

Ana.input --,- This message appears when the measured value exceeds or falls below the measur-
ing range occurs. A fault condition is initiated depending on the values specified
below.

NOTE
If it is determined that the measuring range has been exceeded (wire break) and a fault condition has
been initiated, limit value monitoring for the affected analog input is deactivated.
Fault conditions initiate when the measuring range is monitored at:
4 to 20 mA 2 mA and below
Pt100 216 °C and above
180 Ω VDO, 0 to 5 Bar 305 Ω and above
180 Ω VDO, 0 to 10 Bar 305 Ω and above

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Engine Delayed Monitoring Of The Analog Inputs

Parameter 256
Analog inputs; engine delayed monitoring Y/N
Ana.in 12345678
SV.del. NNNNNJNN The analog inputs may be disabled until the engine has reached rated speed ("firing
speed reached"). This parameter specifies which analog inputs are to be constantly
enabled and temporarily disabled by configuring a "Y" or an "N" below the input
number.
Y ................... Once the firing speed has been reached monitoring of the analog in-
put is enabled (the green LED "Protection" illuminates).
N ................... The analog input is monitored always.

Note: Above screen (8 inputs) appears if at least 5 analog inputs are equipped. If
less than 5 inputs are equipped, a screen with 4 inputs appears. If less inputs are
equipped than inputs appear in the screen, only the entries for the equipped inputs
are valid.

Analog Inputs Selectable as Control Inputs

Parameter 257
Analog input as control input J/N
Ana.in 12345678
control NNNNNNNN This parameter defines for each analog input whether it operates as control input or
not.
J.................... The analog input operates as control input: The analog value is dis-
played and the configured relays are energized when reaching the
configured limits. However, no alarm is issued. No guidance bus out-
put is performed as well.
(This setting has no effect on the behavior in case a wire breaks)
N ................... The analog input operates as described for the above settings.

Note: Above screen (8 inputs) appears if at least 5 analog inputs are equipped. If
less than 5 inputs are equipped, a screen with 4 inputs appears. If less inputs are
equipped than inputs appear in the screen, only the entries for the equipped inputs
are valid.

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Outputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 258
Configuration of the outputs YES/NO
Configure
outputs YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Analog outputs (Package XP, Option A2)

The analog output manager can be used to apply a specific measurement variable to the available analog outputs.
The output may be carried out as a 0 to 20 mA or as a 4 to 20 mA value. A list of the possible functions is con-
tained in Appendix A. Each variable is assigned a unique number. The variable may be scaled via an upper and a
lower input value. The inputs may also be assigned with prefixes (for further details, see "Analog output man-
ager" in Appendix A).

NOTE
The list of values and limits for the analog output manager is contained in Appendix A: "Analog Output
Manager" starting on page 137.

Possible outputs: Analog outputs terminals 120/121 and 122/123

Example: Analog output terminals 120/121
Parameter 259
Function for analog output 0 to 22
Analg.out.12O121
Parameter 00 The number of the desired function is configured here. A list of all selectable func-
tions, together with output and limit value ranges, is contained in Appendix A.
Parameter 260
Analog output range OFF / 0 to 20 / 4 to 20 mA
Analg.out.12O121
0-00mA The output range 0 to 20 mA or 4 to 20 mA is selected using this parameter.

Parameter 261
Scaling the lower output value 0 to 9,990
Analg.out.12O121
0% 0000 The configurable limit for the 0% value is contained in Appendix A.

Parameter 262
Scaling the upper output value 0 to 9,990
Analg.out.12O121
100% 0000 The configurable limit for the 100% value is contained in Appendix A.

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Relay Manager
The relay manager enables the assignment of an arbitrary combination of functions to each relay. In order to
achieve this, each function of the control has its own number. A text, which describes a logical condition that en-
ergizes the relay, must now be entered in the configuration menu for each relay. Up to three function numbers
may be combined in this link. The length of the text must not exceed 16 characters. The control can detect incor-
rect function numbers or formula constructions and will not accept these.

NOTE
The relay manager functions are listed in Appendix B: "Relay Manager" starting on page 140.

Permissible text/symbols for logic functions and their meaning include:

+ .................... OR operator (logic function)
*.................... AND operator (logic function)
- .................... NOT operator (logic function)
1, 2, 3, .......... Function numbers
+/* ................ the following applies "*" before "+"

Example Function Programmed text

of logical Relay picks up, if ...
conditions ... function 22 is applied. 22
and relevant ... function 22 is not applied. - 22
texts ... both function 2 and function 27 are applied. 2 * 27
... function 2 or function 27 is applied. 2 + 27
... not function 5 or function 3 or function 13 are applied. 3 + -5 + 13
... function 4 or 7 or 11 is applied. 4 + 7 + 11
... not function 4 and not function 7 and not function 11 are applied. - 4 * -7 * -11
... function 4 and 7 and 11 are applied. 4 * 7 * 11
... function 7 and 11 are simultaneously or function 4 is applied. 4 + 7 * 11
... not function 4 or not function 7 or not function 11 are applied. -4 + -7 + -11

NOTE
Entering an illegal logical combination deletes the equation.

Parameter 263
Programming relay outputs
Assignm.relay x
3+-8+13 The relay x [x = 1 to 7] energizes, if the logical equation is met.
Example: 3 + -8 + 13 (OR link)
[x = 1 to 7]
3 a class F3 alarm has occurred
-8 operation mode MANUAL has not been selected
13 "Generator underspeed" alarm is present

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Engine
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 264
Configuration of the engine YES/NO
Configure
engine YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES ..............The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO ................The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.
Parameter 265
Engine; auxiliary prerun (start preparation) 0 to 999 s
Aux.services
prerun 000s Prior to each starting sequence, a relay output (relay manager function 52) can be
enabled for this time (i.e. prelube pumps run). A message is displayed when the re-
lay output is enabled. This relay output is automatically enabled in MANUAL op-
eration mode (no prerun). The relay output is present until the operation mode is
changed.

CAUTION
This delay is ignored in the event of emergency power operation. The engine is
started immediately.
Parameter 266
Engine; auxiliary postrun 0 to 999 s
Aux.services
postrun 000s The relay output (relay manager function 52) can be enabled for this time following
each engine cool down (i.e. operate a coolant pump). If the operation mode is
changed from MANUAL to STOP or to AUTOMATIC without an engine start re-
quest, the relay remains enabled for this postrun time and a message is displayed.
Parameter 267
Engine; start/stop sequence for ... DIESEL/GAS/EXTERNAL
Start-stop-logic
for ------------ DIESEL .......Start/stop logic is performed for a diesel engine.
GAS ..............Start/stop logic is performed for a gas engine.
EXTERNAL External start/stop sequence (the start/stop sequence is disabled).

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Start/Stop Sequence 'Gas Engine'

NOTE
The configured number of start attempts (Parameter 271) will be performed.

Time jump without Pickup active: < 15 Hz

1500 1/min
min. speed starter is not reached
Start frequency
f-contr. + time
ZD (1)
min. speed starter
(Pickup ON)
[1/min] (2) [1/min]

Speed governor

Approach idle
gas position

Engine monitoring
activated

Start request

Gas valve

Ignition

Starter

t/s
tSt tZV tSPZ tZV tGV tMV tN tZN
Delayed engine
monitoring 00s

Ignition speed reached

Start attempt Start attempt

unsuccessful successful

Start Stop
Speed curve with Pickup (1) Disengaging of the starter (2) Switching-on of
Speed curve without Pickup the ignition
Ignition and gas ON

Figure 3-14: Start-Stop sequence: Gas engine

The signs and indices mean:

tSta ......... Approach idle gas position [s]
tZV ......... Firing delay [s]
tGV......... Gas delay [s]
tSPZ........ Time between two start attempts [s]
tMV ........ Delayed engine monitoring [s]
tZN ......... Ignition coasting [s]; pre-specified: 5 s
tN............ Engine cool down time [s]
(1)........... Disengagement of the starter; Ignition and gas also ON
(2)........... Switching ON the ignition

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Starting Sequence

If the control is equipped with a three-position frequency controller, a continuous signal (time adjustable via
Parameter 275) is output prior to starting the engine at the "Frequency lower" relay output. The starter is then en-
abled. Following the expiration of the ignition delay time (Parameter 269) and if the engine is rotating with at
least the configured "minimum speed for ignit." (Parameter 268), the ignition is enabled. Following the expira-
tion of the gas valve delay (Parameter 270), the gas valve is then enabled. If the starting sequence finishes suc-
cessfully (the firing speed (Parameter 285) was exceeded) the starter is disengaged. The gas valve and the igni-
tion remain enabled by means of the firing speed. After reaching the "f-controller: starting frequency" (Para-
meter 45) and the delayed engine monitoring has expired (Parameter 285), the speed controller is enabled.

Stopping Sequence

When the start request is terminated, a power reduction is performed (if the real power controller is enabled,
Parameter 80). After the GCB has opened, an engine cool down is performed (Parameter 283). When the engine
cool down period expires, the gas valve is closed, and the engine is stopped. If the engine speed falls below the
firing speed (Parameter 285), an engine starting sequence is disabled for 10 seconds. If the engine cannot be
stopped, an alarm message is issued after 30 s, and a class F3 alarm is initiated.

Following negative deviation from the firing speed, the ignition remains enabled for an additional
5 seconds so that the remaining gas is able to combust.

Safety Instructions To Control Gas Valves

In order to ensure a safe shutdown of the gas valves, a separate shutdown circuit must be utilized.
To prevent gas from escaping through the gas line due to stuck relays the following is recommended.
Controlling gas valves with the GCP-30
The GCP-30 relay manager from V4.1001 and on contains function 131. This function exists in the GCP- 30 so
that a relay configured with this function behaves like the "Gas valve" relay.
The wiring diagram shown below is an example of a recommended gas valve control system in the gas line.

Emergency Relay
stop manager
param. 131 K1 K2

GCP-30 44 GCP-30

43 Gas valve 1 Gas valve 2

Gas
valve K1 K2

Figure 3-15: Wiring diagram for opening gas valves with the GCP-30 from V4.1001

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Parameter
Parameter 268
Gas engine; minimum start speed 0 to 999 rpm
Min.speed for
ignit. 000 rpm L The minimum starter speed can only be detected using an enabled magnetic
This screen is only visible if the pick-up (Parameter 280).
parameter "Pickup" is set "ON".
Once the ignition delay (Parameter 269) has expired, the engine must exceed the
speed configured with this parameter in order to enable the ignition relay (relay
manager function 84).
Parameter 269
Gas engine; ignition delay 0 to 99 s
Ignition delay
00s In gas engine applications a purging operation is frequently desired prior to start-
ing. The ignition delay is initiated when the starter is engaged. If this time has ex-
pired and the "Minimum speed for ignition" (Parameter 268) has been exceeded,
the ignition is enabled.
Parameter 270
Gas engine; gas valve delay 0 to 99 s
Gasvalve delay
00s This timer is initiated once the ignition is enabled. Once this timer has expired and
the engine speed is at least 150 rpm, the gas valve is opened. Upon reaching the fir-
ing speed (Parameter 285) the relay remains energized until the engine stops.
Parameter 271
Gas engine; maximum number of start attempts 1 to 6
Max. attempts to
start 0 The control will initiate up to this number of start attempts. If the engine cannot be
started within this number of start attempts, an alarm message is issued.
Parameter 272
Gas engine; engagement time of the starter 2 to 99 s
Starter time
00s The maximum amount of time the starter will crank the engine during a start se-
quence.
Parameter 273
Gas engine; time between two start attempts 1 to 99 s
Start pause time
00s The delay time between the individual start attempts.

Parameter 274
Gas engine; approach idle gas position ON/OFF
f lower before
start ON If this function is enabled and the control is equipped with a three-step frequency
with three-step controllers only controller, the command "lower engine speed" is issued for the time configured in
Parameter 275 before the starter is engaged. The idle gas position must either be
equipped with a limiting switch or the engine potentiometer must be equipped with
a slipping clutch. A message is displayed.

CAUTION
The engine starting is delay by means of the idle fuel position in the event of emer-
gency power operation.
Parameter 275
Gas engine; approach idle gas position (time) 0 to 999 s
time f lower
bef.start 000s The duration that the "lower engine speed" signal (Parameter 274) is output.
with three-step controllers only

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Manual 37278A GCP-30 Series - Genset Control

Start/Stop Sequence 'Diesel Engine'

NOTE
The configured number of start attempts (Parameter 277) will be performed.

1500 1/min

Start frequency
f-contr. + time
ZD

Speed governor

Approach idle
gas position

Engine monitoring
activated

Start request

Start relay

Pre-glow

Starter 0,5 s 0,5 s

t/s
tSta tVG tEin tSPZ tVG tEin tMV tN
Delayed engine
monitoring 00s

Ignition speed reached

Start attempt Start attempt

unsuccessful successful
Start Stop

Figure 3-16: Start-stop sequence: Diesel engine

The signs and indices mean:

tSta.......... Approach idle fuel position [s]
tVG ......... Preglow time [s]
tEin ......... Crank time [s]
tSPZ ........ Time between two start attempts [s]
tMV......... Delayed engine monitoring [s]
tN ............ Engine cool down time [s]

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Starting Sequence

If the control is equipped with a three-position frequency controller, a continuous signal (time adjustable via
Parameter 281) is output prior to starting the engine at the "Frequency lower" relay output. Following the expira-
tion of this time, the "Pre-glow" relay will be enabled (pre-glow time is configurable via Parameter 276). Follow-
ing preheating, the fuel relay is enabled (Parameter 282), followed by the crank relay. Once the firing speed
(Parameter 285) has been exceeded, the starter disengages, and the fuel relay remains enabled by means of the
firing speed. After reaching the "f-controller: starting frequency" (Parameter 45) and the delayed engine monitor-
ing has expired (Parameter 285), the speed controller is enabled.

Stopping Sequence

When the start request is terminated, a power reduction is performed (if the real power controller is enabled,
Parameter 80). Once the GCB has opened, an engine cool down is performed (Parameter 283). When the engine
cool down period expires, the fuel relay is de-energized and the engine is stopped. If the engine speed falls below
the firing speed (Parameter 285), the engine starting sequence is disabled for 10 seconds. If the engine cannot be
stopped, an alarm message is issued after 30 s, and a class F3 alarm is initiated.

Parameter
Parameter 276
Diesel engine; pre-glow time 0 to 99 s
Preglow time
00s Prior to each starting sequence, the engine glow plugs are enabled for this time pe-
riod.
Parameter 277
Diesel engine; maximum number of start attempts 1 to 6
Max. attempts to
Start 0 The control will initiate up to this number of start attempts. If the engine cannot be
started within this number of start attempts, an alarm message is issued.
Parameter 278
Diesel engine; crank time 2 to 99 s
Starter time
00s The maximum amount of time the starter will crank the engine during a start se-
quence.
Parameter 279
Diesel engine; time between two start attempts 1 to 99 s
Start pause time
00s The delay time between the individual start attempts.

Parameter 280
Diesel engine; approach idle gas position ON/OFF
f lower before
start OFF If this function is enabled and the control is equipped with a three-step frequency
with three-step controllers only controller, the command "lower engine speed" is issued for the time configured in
Parameter 281 before the starter is engaged. The idle gas position must either be
equipped with a limiting switch, or the engine potentiometer must be equipped with
a slipping clutch. A message is displayed.

CAUTION
The engine starting is delay by means of the idle fuel position in the event of emer-
gency power operation.

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Parameter 281
Diesel engine; approach idle gas position (time) 0 to 999 s
time f lower
bef.start 000s The duration that the "lower engine speed" signal (see Parameter 280) is output.
with three- step controllers only

Parameter 282
Diesel engine; fuel solenoid logic open to stop / close to stop
Fuel relay logic
---------------- open to stop .The operating solenoid is energized prior to each start sequence. In
order to shutdown the engine, the operating solenoid is de-energized.
close to stop In order to shutdown the engine, the stop solenoid is energized. The
stop solenoid remains energized for an additional 10 seconds once
the engine speed drops below firing speed (Parameter 285) and the
generator voltage is less than 20 V.

Cool Down
Parameter 283
Engine; cool down time 0 to 999 s
Cool down time
000s If the engine performs a normal shutdown (i.e. STOP mode initiated) or stoppage
by means of a class F2 alarm has been initiated, an engine cool down period with
an open GCB and frequency control is performed for this time. If the engine cool
down has terminated (cool down time has been expired) and engine speed (Para-
meter 285) is still detected after 30 seconds, an engine failure to stop message is
displayed.

Note
An engine cool down is performed only if the reply of a closed GCB (terminal 4)
has been enabled for at least 5 seconds.

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Manual 37278A

[RPM]

Rated speed

[1/min; RPM]

Firing
speed [ZD]
Delayed Engine Monitoring And Firing Speed

t [s]

Start request

t [s]
Ignition speed
reached [ZD]
tMV

t [s]
Delayed engine
monitoring

t [s]
GCP-30 Series - Genset Control

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Firing Speed - Engine Monitoring Delay 2003-09-05.cdr

Figure 3-17: Delayed engine monitoring

Manual 37278A GCP-30 Series - Genset Control

Parameter 284
Engine; delayed engine monitoring 1 to 99 s
Delayed engine
monitoring 00s Delay between reaching the firing speed and monitoring of selected alarms (e.g. oil
pressure, generator underfrequency, etc.).
Parameter 285
Engine; firing speed reached 5 to 70 Hz
Firing speed
reached f >00Hz Setting of the firing speed: Once this firing speed has been reached, the starter is
disengaged (switched off) and the frequency controller starts governing.

Note
Accurate measurement is possible above 15 Hz, even if 5 Hz are displayed. If the
Pickup measurement has been configured to "ON", values down to 5 Hz are dis-
played.

Pick-Up

Measuring the engine speed can be performed alternatively by means of a Magnetic Pickup, the generator fre-
quency, or a tacho generator. Refer to the wiring diagram that pertains to your specific controller in man-
ual 37239, chapter 4.
Parameter 286
Pickup; Pickup measurement ON/OFF
Pickup input
ON ON ................Engine speed monitoring is performed by means of a Magnetic
Pickup. Once firing speed has been achieved, the starter disengage-
ment is initiated by the MPU measurements.
OFF ..............Frequency monitoring/control is performed by means of the genera-
tor frequency measurement. Once firing speed has been achieved, the
starter disengagement is initiated by the generator frequency meas-
urements.
Parameter 287
Pickup; number of Pickup teeth 30 to 280
Number of pickup
teeth 000 Number of pulses per revolution.

Plausibility monitoring:
Plausibility monitoring is the comparison of the measured electrical frequency (de-
termined from the generator voltage) and mechanical speed (determined from the
Pickup signal). If the two frequencies are not identical, a class F1 alarm is initiated.
The plausibility monitoring is enabled by the expiration of delayed engine monitor-
ing (Parameter 284) and performed continuously while the generator is operating.
Parameter 288
Pickup; rated speed at rated frequency 0 to 3,000 rpm
Gen.rated speed
0000 rpm Number of revolutions per minute at rated frequency speed.

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Counter / Real Time Clock

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Parameter 289
Configuration of the counters YES/NO
Configure
counters YES Parameters are grouped together in blocks to permit quicker navigation through the
large number of configuration screens. Selecting "YES" or "NO" has no effect if
controlling or monitoring is performed. This parameter has the following effects:
YES .............. The configuration screens in the next block are displayed and can ei-
ther be viewed ("Select" push-button) or modified ("Cursor→",
"Digit↑" or "Select" push-buttons).
NO................ The parameters in the next block are not displayed, cannot be modi-
fied and are therefore skipped.

Maintenance Call
Parameter 290
Counter; maintenance call 0 to 9,999 h
Service interval
in 0000h A maintenance interval can be specified with this parameter. After the engine has
been in operation for the number of hours configured here, a maintenance message
(class F1 alarm) is displayed. Following the acknowledgement of the message, the
counter is reset to this value.

Note
Entering "0" will disable the maintenance call.

NOTE
In order to reset the maintenance call prior to the configured time (maintenance call alarm not yet initi-
ated), perform the following procedure:
- Navigate to the display screen "Service in 000h" using the "Select" button.
- Press and hold the "Digit" button for 10 seconds.
- The new maintenance interval is displayed.

Operating Hours Counter

Parameter 291
Counter; operating hours counter 0 to 65,000 h
Set oper.hours
counter 00000h This parameter can be used to specify the number of hours an engine has been in
operation. This permits the user to display the correct number of engine hours if
this controller is used on an older engine or this controller is to replace an older
controller.

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NOTE
If a value is to be input in this parameter other than the factory default, the controller must be in code
level CS2. For safety reasons, the counter is set in a 2-step sequence.
The following sequence applies:
1. Step: Set and store the desired operating hours
2. Step: Integrate the value which has been saved by ...
-- Terminate the configuration mode and switch to automatic mode
-- Display of the operating hours
-- Press and hold the "Digit" push-button for at least 5 seconds.

Start Counter
Parameter 292
Counter; number of engine starts 0 to 32,000
Set start
counter 00000 The start counter is used to display how many times the engine has been started.
Following each starting attempt the start counter is increased by one. This permits
the user to display the correct number of starts if this controller is used on an older
engine, a starter is replaced, or this controller is to replace an older controller.

Only maintenance personnel should configure the start counter!

NOTE
If the engine start counter is to be changed from the factory default setting, the controller must be in
code level CS2. For safety reasons, the counter is set in a 2-step sequence.
The following sequence applies:
1. Step: Set and store the desired operating hours
2. Step: Integrate the value which has been saved by ...
-- Terminate the configuration mode and switch to automatic mode
-- Display the number of engine starts
-- Press and hold the "Digit" push-button for at least 5 seconds

kWh Counter
Parameter 293
Counter; kWh counter set in ... kWh/MWh
kWh counter
set in --- The power produced may be measured in kWh or MWh. The user defined which
scale is desired for the controller with this parameter.
Parameter 294
Counter; kWh counter set for ... 0 to 65,500 kWh/MWh
kWh counter
set 00000--- The user may input values into the kWh/MWh counter (depending on Para-
meter 293) with this parameter. This permits the user to display the correct number
of kWh/MWh for a generator if this controller is used on an older engine or this
controller is to replace an older controller.

NOTE
If the kWh counter is to be changed from the factory default setting, the controller must be in code
level CS2. The counter is set in a two-step procedure due to safety reasons.
The following proceeding is valid:
1. Step: Set and store the desired counter values for the parameters 287 and 288.
2. Step: Integrate the stored value by ...
-- Terminate the configuration mode and change to automatic mode
-- Displaying the kWh counter
-- Press and hold the "Digit" push-button for at least 5 seconds

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Real Time Clock (Package XP, Option ZE)

NOTE
If several GCP-30 control units are on one common CAN bus all clocks are synchronized daily at 12:00
o'clock (noon) to the time of the control with the lowest control/generator number. This makes it essen-
tial that each control unit has a different control number.

Parameter 295
Real time clock; time
Time
00:00 Setting of the hours and minutes of the internal real time clock.
Hour
00 0th hour of the day
01 1st hour of the day
... ...
23 23rd hour of the day
Minute
00 0th minute of the hour
01 1st minute of the hour
... ...
59 59th minute of the hour

Parameter 296
Real time clock; year/month
Year,month
00,01 Setting the year and month of the internal real time clock.
Year
99 Year 1999
00 Year 2000
01 Year 2001
... ...
Month
01 January
02 February
... ...
12 December

Parameter 297
Real time clock; day/weekday
Day/weekday
01/1 Setting of the day and weekday of the internal real time clock.
Day
01 1st of the month
02 2nd of the month
... ...
31 31st of the month, if available
Weekday
1 Monday
2 Tuesday
... ...
7 Sunday

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Current Slave Pointer

A current slave pointer, which records and stores the maximum generator current, is implemented in the control.
The display of the maximum generator current can be selected in the Automatic mode by pressing the "Mes-
sage" push-button. The following screen appears in the display:
Parameter 298
Current slave pointer; display of the maximum generator current
000 000 000 000
max. Gen.current The maximum generator current in each phase is displayed.
Reset: Pressing and holding the "reset" button for 3 seconds while the current slave
pointer screen is being displayed will reset the memory.

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Chapter 4.
Commissioning

DANGER - HIGH VOLTAGE

When commissioning the control, please observe all safety rules that apply to the handling of live
equipment. Ensure that you know how to provide first aid in the event of an uncontrolled release of en-
ergy and that you know where the first aid kit and the nearest telephone are. Never touch any live com-
ponents of the system or on the back of the system:

LIFE THREATENING

CAUTION
Only a qualified technician may commission unit. The "EMERGENCY-STOP" function must be opera-
tional prior to commissioning of the system, and must not depend on the unit for its operation.

CAUTION
Prior to commissioning ensure that all measuring devices are connected in correct phase sequence.
The connect command for the unit circuit breaker must be disconnected at the unit circuit breaker. The
field rotation must be monitored for proper rotation. Any absence of or incorrect connection of voltage
measuring devices or other signals may lead to malfunctions and damage the unit, the engine, and/or
components connected to the unit!

Commissioning Procedure:

1. After wiring the unit and ensuring all voltage-measuring devices are phased correctly, apply the control
system voltage (i.e. 12/24 Vdc). The "Operation" LED will illuminate.

2. By simultaneously pressing the two push-buttons "Digit↑" and "Cursor→", the configuration mode is ac-
cessed. After entering the access code number, the unit may be configured according to the application
requirements (see the chapter regarding the parameters).

3. After applying the measuring variables, the unit will display the measured values. These values should be
confirmed with a calibrated measuring instrument.

4. The initial start of the engine should be performed in the MANUAL operation mode (press the "MAN-
UAL" push-button). Start the engine ("START" push-button) and then stop it ("STOP" push-button). All
generator measured values must be checked. Any alarm messages should be investigated as well.

5. Check the automatic start sequence by means of the TEST operation mode (press the "TEST" push-
button). Test the protections that result in alarms with shutdowns.

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6. "AUTO" operation mode (press the "AUTO" push-button): Applying the automatic control inputs and
the engine start request can now carry out automatic starting with subsequent synchronization.

Check synchronization: Check the generator and the generator busbar rotating fields. Check the connect
command with a zero voltmeter (determination of the phase angle) at the generator power circuit breaker
(GCB). If several correct synchronizing pulses have been output, switch the operation mode to "STOP"
and reconnect the connect pulse "Command: close GCB" with the engine in "STOP" mode.

7. If steps 1 through 6 have been carried out successfully, parallel operations may be commenced. It is rec-
ommended to start with a constant power/baseload operation (approx. 25 % of the generator rated power)
initially. While this operation is being carried out, the displayed measured values must be verified. Test
the GCB shutdown. Check the real power controller and if necessary the power factor controller for
proper operation. Enter various set point values and verify proper operation.

8. If the mains parallel operation performs in a satisfactory manner, the synchronization of the mains power
circuit breaker (MCB) must be checked:

A power failure in the system must be simulated or observed by the controller. During a mains parallel
operation, change the operation mode from AUTOMATIC to MANUAL. Open the MCB ("MCB ON"
LED will turn off). Press the AUTOMATIC push-button to return the controller back to the AUTO-
MATIC operation mode.

Check the generator busbar and the mains rotating field. Check the connect command with a zero voltme-
ter (determination of the phase angle) at the MCB. If several correct synchronizing pulses have been out-
put, switch the operation mode to "STOP" and re-connect the connect pulse "Command: close MCB" with
the engine in "STOP" mode.

9. Test the emergency power operation functions

NOTE
The automatic operation mode is influenced by the input signals "Automatic 1" and "Automatic 2". En-
sure that the power circuit breaker reply messages are processed as the reverse of the condition (i.e.
when the circuit breaker is closed the reply message for the inputs: CB is open (terminal 54) is 0 volts.
The CB aux contacts should be configured as normally closed! Refer to the description of the auxiliary
and control inputs starting on page 10. It is vital that these replies be connected!

Electrical insulation between voltage supply and discrete control and feedback inputs: By the use of corre-
sponding external wiring, the common reference point of the discrete inputs can be electrically isolated from the
supply voltage (0 V, terminal 2). This is necessary if the discrete inputs are not to be triggered with 24 Vdc and
electrical isolation of the control voltage (e. g. 220 Vdc, 220 Vac) from the supply voltage must be insured.

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Appendix A.
Analog output manager
(Package XP, Option A2)

NOTE
The functions listed below can only be output correctly if the existing version of the control permits
this.

Func- Output Value Input of the two limit values

tion
0 The analog output is disabled. N/A N/A
1 Actual generator real power [dimen- 0% Lower power limit (can also be
sionless] negative) e.g. –0050 kW
100% Upper power limit (can also be
negative) e.g. 0200 kW
2 Actual generator power factor ϕ [dimen- 0% Lower interval to power factor ϕ=1
[e.g. (-070 to +080) /100] sionless] e.g. -0030 corresponds to c0.70
(Definition at end of Table) 100% Upper interval to power factor ϕ=1
e.g. 0030 corresponds to i0.70
3 Actual generator frequency [Hz∗100] 0% Lower frequency e.g. 0000
corresponds to 00.00 Hz.
100% Upper frequency e.g. 7000
corresponds to 70.00 Hz.
4 Actual generator reactive power [kvar] 0% capacitive reactive power
(negative) e.g -0100 kvar
100% inductive reactive power
(positive) e.g. +0100 kvar
5 Rated power of all generators [kW]
connected to generator busbar
minus nominal actual power 0% Lower power (can also be
negative) e.g.–0050 kW
6 Total actual power of all genera- [kW] 100% Upper power (can also be
tors connected to generator bus- negative) e.g. 0200 kW
bar

7 Generator apparent current in L1 [A]

8 Generator apparent current in L2 [A] 0% Lower current output

e.g. 0000 A
100% Upper current output
e.g. 500 A
9 Generator apparent current in L3 [A]

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Func- Output Value Input of the two limit values

tion
10 Speed via Pickup [min-1] 0% Lower speed
e.g. 0000 rpm
100% Upper speed
e.g. 3000 rpm
11 Analog input [T1] [°C] or
(Package XP, Option T701) [°F] or
freely scaleable

12 Analog input [T2] [°C] or

(Package XP, Option T701) [°F] or
freely scaleable

13 Analog input [T3] [°C] or

(Package XP, Option T701) [°F] or
freely scaleable
0% Lower measured value
e.g. 0000 corresponds to 000 °C
14 Analog input [T4] [°C] or
at temperature input
(Package XP, Option T701) [°F] or
100% Upper measuring value
freely scaleable
e.g. 0255 corresponds to 255 °C
at temperature input
15 Analog input [T5] [°C] or
(Package XP, Option T701) [°F] or
0% Lower measured value e.g. 0000
freely scaleable
corresponds to 00.0 bar oil pressure
100% Upper measured value e.g. 0100
16 Analog input [T6] [Bar] or corresponds to 10.0 bar oil pressure
(Package XP, Option T701) [PSI] or
freely scaleable

17 Analog input [T7] [Bar] or

(Package XP, Option T701) [PSI] or
freely scaleable

18 --free-- [°C] or
[°F] or
freely scaleable

19 Actual mains interchange (im- [kW] 0% lower power

port/export) real power e.g. -0800 kW
100% upper power
e.g. 0800 kW
20 Mains apparent current in L1 [A] 0% Lower current output
e.g. 0000 A
100% Upper current output
e.g. 500 A
21 Mains power factor ϕ [dimen- 0% Lower interval to power factor ϕ=1
[e. g. (-070 to +080) /100] sionless] e.g. -0030 corresponds to k0,70
(Definition at end of Table) 100% Upper interval to power factor ϕ=1
e.g. 0030 corresponds to i0,70
22 Actual mains reactive power [kvar] 0% capacitive reactive power (negative) e.g. -0100 kvar
100% inductive reactive power (positive) e.g. +0100 kvar

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Manual 37278A GCP-30 Series - Genset Control

The designation 0 % stands for either 4 mA or 0 mA; the designation 100 % stands for 20 mA. The values may
also be assigned with prefixes (see relay manager function 1).

Definition of power factor cos ϕ scaling: According to the scaling of the analog output, the power factor cos ϕ
can be output within the range from capacitive values ranging from c0.00 via power factor ϕ = 1 to inductive val-
ues up to i0.00.

Power factor = 1,00

Capacitive Inductive
Lower distance Higher distance
eg. 0030 eg. 0030
Scalable range (0..20 mA)
k 0.00 eg. k0.70..1.00..i0.70 i 0.00

Figure 4-1: Analog outputs - cosϕ scaling

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Appendix B.
Relay Manager

No. Output Explanation

1 Alarm class 1
2 Alarm class 2
3 Alarm class 3
4 Firing speed reached (engine runs)
5 Mains failure; undelayed The function reacts according to the
status of the breakers. The condi-
tions described in chapter "Emer-
gency power" apply.
6 Battery undervoltage
7 AUTOMATIC operation mode
8 MANUAL operation mode
9 TEST operation mode
10 STOP operation mode
11 Generator undervoltage
12 Generator overvoltage
13 Generator underfrequency
14 Generator overfrequency
15 Generator overcurrent level 1
16 "Synchronization GCB" or "Connect GCB" time monitoring alarm
17 Engine start failure
18 Generator load imbalance
19 Generator overload
20 Generator reverse/reduced power
21 Readiness for operation Output via relay manager
22#1 Analog input [T1], level 1
23#1 Analog input [T1], level 2
24#1 Analog input [T2], level 1
25#1 Analog input [T2], level 2
26#1 Analog input [T3], level 1
27#1 Analog input [T3], level 2
28#1 Analog input [T4], level 1
29#1 Analog input [T4], level 2
30#1 Analog input [T5], level 1
33#1 Analog input [T5], level 2
32#1 Analog input [T6], level 1
33#1 Analog input [T6], level 2
34#1 Analog input [T7], level 1
35#1 Analog input [T7], level 2
36 Discrete input [D01]
37 Discrete input [D02]
38 Discrete input [D03]
39 Discrete input [D04]
40 Discrete input [D05]
41 Discrete input [D06]
42 Discrete input [D07]
43 Discrete input [D08]
44 Discrete input [D09]
45 Discrete input [D10]
46 Discrete input [D11]
47 Discrete input [D12]
48 Discrete input [D13]
49 Discrete input [D14]
50 Discrete input [D15]
#1
(Package XP, Option T701)

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No. Output Explanation

51 Discrete input [D16]
52 Auxiliary services i.e. prelube/cooling pumps
53# --Internal--
54 Centralized alarm (class F1, F2, or F3 alarm; enabled until acknowledge-
ment)
55 TEST or AUTOMATIC operation mode selected
56 Generator power watchdog, level 1
57 MCB is closed
58 GCB is closed
59# --Internal--
60 Mains parallel operation is desired: disable interlock of GCB <> MCB
61 Overcurrent I/t or generator overcurrent, level 2
62 Introduce load-shedding: Connection / synchronization of GCB is carried Signal is enabled prior to connection
out or circuit breaker is closed / synchronization and remains en-
abled after circuit breaker is closed.
63 Connection / synchronization MCB carried out or circuit breaker is closed Signal is enabled prior to connection
/ synchronization and remains en-
abled after circuit breaker is closed.
64 Overspeed via Magnetic Pickup
65 Emergency power is active
66 Shutdown malfunction
67 Power watchdog for power supplied by the mains
68 Maintenance call
69 Pickup/gen. differential frequency The monitored generator frequency
and the engine speed from the MPU
are different
70 "Synchronization MCB" or. "Connect MCB" time monitoring alarm.
71 GCB synchronization carried out
72 MCB synchronization carried out
73 Lamp test active
74 Malfunction "Reply: GCB is open" - fault on closing The GCB cannot be closed after 5 at-
tempts.
75 Malfunction "Reply: MCB is open" - fault on closing The MCB cannot be closed after 5
attempts.
76 Malfunction "Reply: GCB is open" - fault on opening 2 s following the "Command: open
GCB" a reply continues to be de-
tected.
77 Malfunction "Reply: MCB is open" - fault on opening 2 s following the "Command: open
MCB" a reply continues to be de-
tected.
78 Power supplied by the mains <> 0 In the event of interchange synchro-
nization, the zero incoming power
cannot be attained. The MCB is pre-
vented from opening as a result of
this. Reset via acknowledgment.
79 Connect time on dead bus start exceeded
80 Generator power watchdog, level 2
#1
special versions only

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No. Output Explanation

81 Left mains rotating field
82 Engine enable Set engine enable
As long as there is a start request for
the engine and during cool down (as
long as the operation of the engine is
enabled, i.e. operation mode
AUTOMATIC and discrete input
3/5, emergency power, start via in-
terface, manual start, etc.).

Reset engine enable

If the start request is no longer pre-
sent, in the event of manual stop-
page, with a class F3 alarm, during
the engine stop time (prior to a fur-
ther attempt at starting), and if
"zero" speed is detected and there is
not a start request present or coasting
is not taking place.
83 "RESET" push-button pressed
84 Preheating/firing ON (pre-assigned to relay [7]) pre-assigned default value
85 Group alarm of class F1, F2, or F3 alarm (pre-assigned to relay [8]) pre-assigned default value
Horn: after 2 min independent shut-
off
86#1 --Internal--
87#1 --Internal--
88 Generator voltage and frequency are not available (undelayed)
89 Busbar voltage and frequency are not available (undelayed)
90#1 --Internal--
91 Pickup has nominal speed (+/-6 %)
92 Mains voltage fault via protection device
93 Mains frequency fault via protection device
94 Phase/vector shift fault via protection device
95#1 --Internal--
96 Delayed engine monitoring time exceeded
97 Sprinkler mode is active (included Sprinkler coasting)
98#1 --Internal--
99#1 --Internal--
100#1 --Internal--
101#1 --Internal--
102#1 --Internal--
103#1 --Internal--
104#1 --Internal--
105#1 --Internal--
106#1 --Internal--
107#1 --Internal--
108#1 --Internal--
109#1 --Internal--
110#1 --Internal--
#1
special versions only

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No. Output Explanation

111#1 --Internal--
112#1 --Internal--
113#1 --Internal--
114#2 Three-position controller: n+ / f+ / P+
115#2 Three-position controller: n- / f- / P- (use an external RC protection cir-
116#2 Three-position controller: V+ / Q+ cuit)
117#2 Three-position controller: V- / Q-
118#1 --Internal--
119#3 Wire break Analog input [T1]
120#3 Wire break Analog input [T2]
121#3 Wire break Analog input [T3]
122#3 Wire break Analog input [T4]
123#3 Wire break Analog input [T5]
124#3 Wire break Analog input [T6]
125#3 Wire break Analog input [T7]
126#1 --Internal--
127#1 --Internal--
128#1 --Internal--
129#1 --Internal--
130#1 --Internal--
131 Fuel relay is ON / stop relay is ON / gas valve is ON
132#1 --Internal--
133 Idle mode active
134#1 --Internal--
135#1 --Internal-- Direct configuration via LeoPC1
136#1 --Internal-- starting with Version 3.0.015
137#1 --Internal-- possible.
138#1 --Internal--
139 Phase rotation generator/busbar or busbar/mains mismatch
140 Direction of rotation, mains voltage: CW
141 Direction of rotation, generator voltage: CCW
142 Direction of rotation, generator voltage: CW
143 Starter engaged (cranking)
144 GCB is to be opened
145 --Internal--
146 Parallel operation CB from V4.3010
147 --Internal--
148 Unintended stop from V4.3010
149 Interface error X1/X5 from V4.3010
#1
special versions only, #2 (Package Q, Option Q), #3 (Package XP, Option T701)

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Appendix C.
Interface Protocol

Transmission Telegram
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Contents (words) Unit Note
MUX

No.

0/1 1 Generator voltage delta V12 V × 10UGNEXPO

0/2 2 Generator frequency f Hz × 100
0/3 3 Actual generator real power P W × 10PGNEXPO
1/1 4 Exponents High Byte: PGNEXPO Generator power
Low Byte: UGNEXPO Generator voltage
1/2 5 Real power set point value PGNWD
see note W× × 10 PGNEXPO
2.800
1/3 6 Conversion factor Steps Æ kW PGNWD (internal)
2/1 7 Busbar voltage delta V12 V × 10UGSSEXPO
2/2 8 Mains voltage delta V12 V × 10UNTEXPO
2/3 9 Currently present alarm class Bit 15 =1 --Internal--
Bit 14 =1 --Internal--
Bit 13 =1\
Alarm class F2 or alarm class F3
Bit 12 = 1/
Bit 11 =1\
LED "Alarm" flashes
Bit 10 = 1/
Bit 9 =1 --Internal--
Bit 8 =1 --Internal--
Bit 7 =1\
Alarm class F3
Bit 6 = 1/
Bit 5 =1\
Alarm class F2
Bit 4 = 1/
Note – On double /fourfold bits the follow- Bit 3 =1\
Alarm class F1
ing is valid: If the indicated bit combination Bit 2 = 1/
is fulfilled (high byte and low byte) ,the Bit 1 =1\
Alarm class F0
message is active (otherwise inactive). Bit 0 = 1/
3/1 10 Control register 2 Bit 15 =1\
Terminal 3 is energized
Bit 14 = 1/
Bit 13 =1\
Terminal 5 is energized
Bit 12 = 1/
Bit 11 =1\
--Internal--
Bit 10 = 1/
Bit 9 =1\ Terminal 53 is energized
Bit 8 = 1/ DI "Enable MCB"
Bit 7 =1\ Terminal 4 is energized
Bit 6 = 1/ DI "Reply GCB is closed"
Bit 5 =1\ Terminal 54 is energized
Bit 4 = 1/ DI "Reply MCB is closed"
Bit 3 =1\
Terminal 6 is energized
Bit 2 = 1/
Note – On double /fourfold bits the follow- Bit 1 =1\
Shutdown power reached
ing is valid: If the indicated bit combination Bit 0 = 0/
is fulfilled (high byte and low byte) ,the Bit 1 =0\
Shutdown power not reached
message is active (otherwise inactive). Bit 0 = 1/

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Contents (words) Unit Note

MUX

No. Actual mains interchange (import/export)

3/2 11 W × 10PNTEXPO
real power
3/3 12 Control register 1 Bit 15 =1 \ Starting enabled (in isolated operation or
Bit 14 =1 / mains parallel operation)
Bit 13 =1 \
--Internal--
Bit 12 =1 /
Bit 11 =1 \ Execution of acknowledgment
Bit 10 =1 / of a class F2/F3 alarm
Bit 9 =1 \ Execution of acknowledgment
Bit 8 =1 / of a class F1 alarm
Bit 7 =1 \
--Internal--
Bit 6 =1 /
Bit 5 =1 \ State of generator busbar 1 = OK
Bit 4 =1 / --Internal--
Note – On double /fourfold bits the follow- Bit 3 =1 \
--Internal--
ing is valid: If the indicated bit combination Bit 2 =1 /
is fulfilled (high byte and low byte) ,the Bit 1 =1 \
--Internal--
message is active (otherwise inactive). Bit 0 =0 /
4/1 13 Alarm message IKD (SC06) Bit 15 =1 Failure DI8 of the IKD1
Bit 14 =1 Failure DI7 of the IKD1
Bit 13 =1 Failure DI6 of the IKD1
Bit 12 =1 Failure DI5 of the IKD1
Bit 11 =1 Failure DI4 of the IKD1
Bit 10 =1 Failure DI3 of the IKD1
Bit 9 =1 Failure DI2 of the IKD1
Bit 8 =1 Failure DI1 of the IKD1
Bit 7 =1 --Internal--
Bit 6 =1 --Internal--
Bit 5 =1 --Internal--
Bit 4 =1 --Internal--
Note – On double /fourfold bits the follow- Bit 3 =1 --Internal--
ing is valid: If the indicated bit combination Bit 2 =1 --Internal--
is fulfilled (high byte and low byte) ,the Bit 1 =1 --Internal--
message is active (otherwise inactive). Bit 0 =1 --Internal--
4/2 14 Internal alarm 6 Bit 15 =1 MPU plausibility fault
Bit 14 =1 Engine shutdown malfunction
Bit 13 =1 Time overrun, GCB dead bus switching
Bit 12 =1 --Internal--
Bit 11 =1 MCB open switch malfunction
Bit 10 =1 GCB open switch malfunction
Bit 9 =1 MCB synchronization time monitoring
Bit 8 =1 GCB synchronization time monitoring
Bit 7 =1 Range alarm analog input [T8]
Bit 6 =1 Range alarm analog input [T7]
Bit 5 =1 Range alarm analog input [T6]
Bit 4 =1 Range alarm analog input [T5]
Note – On double /fourfold bits the follow- Bit 3 =1 Range alarm analog input [T4]
ing is valid: If the indicated bit combination Bit 2 =1 Range alarm analog input [T3]
is fulfilled (high byte and low byte) ,the Bit 1 =1 Range alarm analog input [T2]
message is active (otherwise inactive). Bit 0 =1 Range alarm analog input [T1]
4/3 15 Generator voltage delta V23 V × 10UGNEXPO
5/1 16 Generator voltage delta V31 V × 10UGNEXPO
5/2 17 Generator voltage wye V1N V × 10UGNEXPO
5/3 18 Generator voltage wye V2N V × 10UGNEXPO
6/1 19 Generator voltage wye V3N V × 10UGNEXPO

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Contents (words) Unit Note

MUX

No.

6/2 20 Configuration [T1]-[T4] Display in ... #1# °C °F bar/10 psi/10 % no unit

Analog input [T4]

Bit 15 = 0 0 0 1 1 1 0
Bit 14 = 0 1 1 0 0 1 0
Bit 13 = 0 0 1 0 1 0 1
Bit 12 = 0 1 0 1 0 0 1
Analog input [T3]
Bit 11 = 0 0 0 1 1 1 0
Bit 10 = 0 1 1 0 0 1 0
Bit 9 = 0 0 1 0 1 0 1
Bit 8 = 0 1 0 1 0 0 1
Analog input [T2]
#1#: The analog input is not available or he Bit 7 = 0 0 0 1 1 1 0
has been configured either as real power set Bit 6 = 0 1 1 0 0 1 0
point value or as mains (import/export) real Bit 5 = 0 0 1 0 1 0 1
power value. Bit 4 = 0 1 0 1 0 0 1
Analog input [T1]
Note – On double /fourfold bits the follow- Bit 3 = 0 0 0 1 1 1 0
ing is valid: If the indicated bit combination Bit 2 = 0 1 1 0 0 1 0
is fulfilled (high byte and low byte) ,the Bit 1 = 0 0 1 0 1 0 1
message is active (otherwise inactive). Bit 0 = 0 1 0 1 0 0 1
6/3 21 Engine speed measured via the Pickup min-1
7/1 22 Generator current in L1 A × 10IGNEXPO
7/2 23 Generator current in L2 A × 10IGNEXPO
7/3 24 Generator current in L3 A × 10IGNEXPO
8/1 25 Actual generator reactive power var × 10PGNEXPO positive = inductive
8/2 26 Generator cos ϕ Example: FF9EH cos ϕ = c 0,98 (capacitive)
FF9DH cos ϕ = c 0,99 (capacitive)
0064H cos ϕ = 1,00
0063H cos ϕ = i 0,99 (inductive)
0062H cos ϕ = i 0,98 (inductive)
8/3 27 Current reserve power in the system kW
9/1 28 Current actual real power in the system kW
9/2 29 Number of participants on the CAN bus
9/3 30 H.B. Mains status FFH Voltage and frequency available
L.B. Generator status 00H Voltage and frequency not available
10/1 31 Exponents High Byte: IGNEXPO Generator current
Low Byte: --- free
10/2 32 Busbar frequency Hz × 100

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Contents (words) Unit Note

MUX

10/3 No.
33 Configuration [T5]-[T8] Display in ... #1# °C °F bar/10 psi/10 % no unit

Analog input [T8]

Bit 15 = 0 0 0 1 1 1 0
Bit 14 = 0 1 1 0 0 1 0
Bit 13 = 0 0 1 0 1 0 1
Bit 12 = 0 1 0 1 0 0 1
Analog input [T7]
Bit 11 = 0 0 0 1 1 1 0
Bit 10 = 0 1 1 0 0 1 0
Bit 9 = 0 0 1 0 1 0 1
Bit 8 = 0 1 0 1 0 0 1
Analog input [T6]
#1#: The analog input is not available or he Bit 7 = 0 0 0 1 1 1 0
has been configured either as real power se Bit 6 = 0 1 1 0 0 1 0
tpoint value or as mains (import/export) Bit 5 = 0 0 1 0 1 0 1
real power value. Bit 4 = 0 1 0 1 0 0 1
Analog input [T5]
Note – On double /fourfold bits the follow- Bit 3 = 0 0 0 1 1 1 0
ing is valid: If the indicated bit combination Bit 2 = 0 1 1 0 0 1 0
is fulfilled (high byte and low byte) ,the Bit 1 = 0 0 1 0 1 0 1
message is active (otherwise inactive). Bit 0 = 0 1 0 1 0 0 1
11/1 34 Mains voltage delta V23 V × 10UNTEXPO
11/2 35 Mains voltage delta V31 V × 10UNTEXPO
11/3 36 Mains voltage wye V1N V × 10UNTEXPO
12/1 37 Mains voltage wye V2N V × 10UNTEXPO
12/2 38 Mains voltage wye V3N V × 10UNTEXPO
12/3 39 Mains frequency out off VN12/VN23/VN31 Hz × 100
13/1 40 Mains current in L1 A × 10INTEXPO
13/2 41 Mains reactive power var × 10PNTEXPO
13/3 42 Mains power factor ϕ Example: FF9EH cos ϕ = c 0.98 (capacitive)
FF9DH cos ϕ = c 0.99 (capacitive)
0064H cos ϕ = 1.00
0063H cos ϕ = i 0.99 (inductive)
0062H cos ϕ = i 0.98 (inductive)
14/1 43 Exponents High Byte: PNTEXPO Mains power
Low Byte: UNTEXPO Mains voltage
14/2 44 Exponents High Byte: INTEXPO Mains current
Low Byte: USSEXPO Busbar voltage
14/3 45 Engine operating hours ( H.W.) h × 216 Double word
15/1 46 Engine operating hours ( L.W.) h
15/3 47 Hours until next maintenance h
15/3 48 Engine start number

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Contents (words) Unit Note

MUX

No.

16/1 49 Operation mode Bit 15 = 1 LOAD TEST operation mode

Bit 14 = 1 STOP operation mode
Bit 13 = 1 TEST operation mode
Bit 12 = 1 MANUAL operation mode
Bit 11 = 1 AUTOMATIC operation mode
Bit 10 = 1 --Internal--
Bit 9 = 1 --Internal--
Bit 8 = 1 --Internal--
Bit 7 = 1
Emergency power is ON
Bit 6 = 0
Bit 7 = 0
Emergency power is OFF
Bit 6 = 1
Bit 5 = 1
Delayed engine monitoring is ON
Bit 4 = 1
Note – On double /fourfold bits the follow- Bit 3 = 1
Cool down expired
ing is valid: If the indicated bit combination Bit 2 = 1
is fulfilled (high byte and low byte) ,the Bit 1 = 1
--Internal--
message is active (otherwise inactive). Bit 0 = 1
16/2 50 Generator active energy ( H.W.) kWh × 2 16
Double word
16/3 51 Generator active energy (L.W.) kWh
17/1 52 Battery voltage V × 10
17/2 53 Internal alarm 1 Bit 15 =1 \
F3: Generator overfrequency 1
Bit 14 =1 /
Bit 13 =1 \
F3: Generator underfrequency 1
Bit 12 =1 /
Bit 11 =1 \
F3: Generator overvoltage 1
Bit 10 =1 /
Bit 9 =1 \
F3: Generator undervoltage 1
Bit 8 =1 /
Bit 7 =1 \
--Internal--
Bit 6 =1 /
Bit 5 =1 \
F1: Battery undervoltage
Bit 4 =1 /
Note – On double /fourfold bits the follow- Bit 3 =1 \
F3: Generator overload
ing is valid: If the indicated bit combination Bit 2 =1 /
is fulfilled (high byte and low byte) ,the Bit 1 =1 \
F3: Generator reverse power
message is active (otherwise inactive). Bit 0 =1 /
17/3 54 Internal alarm 2 Bit 15 =1 \
F0: Mains overfrequency
Bit 14 =1 /
Bit 13 =1 \
F0: Mains underfrequency
Bit 12 =1 /
Bit 11 =1 \
F0: Mains overvoltage
Bit 10 =1 /
Bit 9 =1 \
F0: Mains undervoltage
Bit 8 =1 /
Bit 7 =1 \
Interface fault X1-X5
Bit 6 =1 /
Bit 5 =1 GCB opened; "Time ad-on ramp" expired
Bit 4 =1 --Internal--
Note – On double /fourfold bits the follow- Bit 3 =1 \
--Internal--
ing is valid: If the indicated bit combination Bit 2 =1 /
is fulfilled (high byte and low byte) ,the Bit 1 =1 \
F0: Mains phase/vector jump
message is active (otherwise inactive). Bit 0 =1 /

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Contents (words) Unit Note

MUX

18/1 No.
55 Internal alarm 3 Bit 15 =1 \ F3: Time-overcurrent, level 2 or
Bit 14 =1 / inverse time-overcurrent, IEC255
Bit 13 =1 \
F3: Generator overspeed (Pickup)
Bit 12 =1 /
Bit 11 =1 \
Import power 0 kW not reached
Bit 10 =1 /
Bit 9 =1 \
F3: Generator load imbalance
Bit 8 =1 /
Bit 7 =1 \
F3: Time-overcurrent, level 1
Bit 6 =1 /
Bit 5 =1 \
Interface fault Y1-Y5
Bit 4 =1 /
Note – On double /fourfold bits the follow- Bit 3 =1 \
F1: Maintenance call
ing is valid: If the indicated bit combination Bit 2 =1 /
is fulfilled (high byte and low byte) ,the Bit 1 =1 \
Start failure
message is active (otherwise inactive). Bit 0 =1 /
18/2 56 Internal alarm 4 Bit 15 =1 \
F1: Analog input [T1], level 1
Bit 14 =1 /
Bit 13 =1 \
F3: Analog input [T1], level 2
Bit 12 =1 /
Bit 11 =1 \
F1: Analog input [T2], level 1
Bit 10 =1 /
Bit 9 =1 \
F3: Analog input [T2], level 2
Bit 8 =1 /
Bit 7 =1 \
F1: Analog input [T3], level 1
Bit 6 =1 /
Bit 5 =1 \
F3: Analog input [T3], level 2
Bit 4 =1 /
Note – On double /fourfold bits the follow- Bit 3 =1 \
F1: Analog input [T4], level 1
ing is valid: If the indicated bit combination Bit 2 =1 /
is fulfilled (high byte and low byte) ,the Bit 1 =1 \
F3: Analog input [T4], level 2
message is active (otherwise inactive). Bit 0 =1 /
18/3 57 Internal alarm 5 Bit 15 =1 \
F1: Analog input [T5], level 1
Bit 14 =1 /
Bit 13 =1 \
F3: Analog input [T5], level 2
Bit 12 =1 /
Bit 11 =1 \
F1: Analog input [T6], level 1
Bit 10 =1 /
Bit 9 =1 \
F3: Analog input [T6], level 2
Bit 8 =1 /
Bit 7 =1 \
F1: Analog input [T7], level 1
Bit 6 =1 /
Bit 5 =1 \
F3: Analog input [T7], level 2
Bit 4 =1 /
Note – On double /fourfold bits the follow- Bit 3 =1 \
--Internal--
ing is valid: If the indicated bit combination Bit 2 =1 /
is fulfilled (high byte and low byte) ,the Bit 1 =1 \
--Internal--
message is active (otherwise inactive). Bit 0 =1 /

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Contents (words) Unit Note

MUX

No.

19/1 58 External alarm 1 Bit 15 = 1 \

Discrete input [D01]
Bit 14 = 1 /
Bit 13 = 1 \
Discrete input [D02]
Bit 12 = 1 /
Bit 11 = 1 \
Discrete input [D03]
Bit 10 = 1 /
Bit 9 = 1 \
Discrete input [D04]
Bit 8 = 1 /
Bit 7 = 1 \
Discrete input [D05]
Bit 6 = 1 /
Bit 5 = 1 \
Discrete input [D06]
Bit 4 = 1 /
Note – On double /fourfold bits the follow- Bit 3 = 1 \
Discrete input [D07]
ing is valid: If the indicated bit combination Bit 2 = 1 /
is fulfilled (high byte and low byte) ,the Bit 1 = 1 \
Discrete input [D08]
message is active (otherwise inactive). Bit 0 = 1 /
19/2 59 External alarm 2 Bit 15 = 1 \
Discrete input [D09]
Bit 14 = 1 /
Bit 13 = 1 \
Discrete input [D10]
Bit 12 = 1 /
Bit 11 = 1 \
Discrete input [D11]
Bit 10 = 1 /
Bit 9 = 1 \
Discrete input [D12]
Bit 8 = 1 /
Bit 7 = 1 \
Discrete input [D13]
Bit 6 = 1 /
Bit 5 = 1 \
Discrete input [D14]
Bit 4 = 1 /
Note – On double /fourfold bits the follow- Bit 3 = 1 \
Discrete input [D15]
ing is valid: If the indicated bit combination Bit 2 = 1 /
is fulfilled (high byte and low byte) ,the Bit 1 = 1 \
Discrete input [D16]
message is active (otherwise inactive). Bit 0 = 1 /
19/3 60 Internal alarm 7 Bit 15 = 1 --Internal--
Bit 14 = 1 --Internal--
Bit 13 = 1 --Internal--
Bit 12 = 1 --Internal--
Bit 11 = 1 --Internal--
Bit 10 = 1 --Internal--
Bit 9 = 1 --Internal--
Bit 8 = 1 --Internal--
Bit 7 = 1 MCB close malfunction
Bit 6 = 1 GCB close malfunction
Bit 5 = 1 --Internal--
Bit 4 = 1 --Internal--
Note – On double /fourfold bits the follow- Bit 3 = 1 --Internal--
ing is valid: If the indicated bit combination Bit 2 = 1 --Internal--
is fulfilled (high byte and low byte) ,the Bit 1 = 1 --Internal--
message is active (otherwise inactive). Bit 0 = 1 Immediate stop
20/1 61 Analog input [T1] The measured value is transmitted.
20/2 62 Analog input [T2] The measured value is transmitted.
20/3 63 Analog input [T3] The measured value is transmitted.
21/1 64 Analog input [T4] The measured value is transmitted.
21/2 65 Analog input [T5] The measured value is transmitted.
21/3 66 Analog input [T6] The measured value is transmitted.
22/1 67 Analog input [T7] The measured value is transmitted.

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Contents (words) Unit Note

MUX

22/2 No.
68 Alarm messages IKD2 (SC06) Bit 15 = 1 Failure DI8 of the IKD2
Bit 14 = 1 Failure DI7 of the IKD2
Bit 13 = 1 Failure DI6 of the IKD2
Bit 12 = 1 Failure DI5 of the IKD2
Bit 11 = 1 Failure DI4 of the IKD2
Bit 10 = 1 Failure DI3 of the IKD2
Bit 9 = 1 Failure DI2 of the IKD2
Bit 8 = 1 Failure DI1 of the IKD2
Bit 7 = 1 --Internal--
Bit 6 = 1 --Internal--
Bit 5 = 1 --Internal--
Bit 4 = 1 --Internal--
Note – On double /fourfold bits the follow- Bit 3 = 1 --Internal--
ing is valid: If the indicated bit combination Bit 2 = 1 --Internal--
is fulfilled (high byte and low byte) ,the Bit 1 = 1 --Internal--
message is active (otherwise inactive). Bit 0 = 1 --Internal--
22/3 69 LCD-display / Pickup Currently active display message
Bit 15 = x
Bit 14 = x
Bit 13 = x A number is transmitted, please consult
Bit 12 = x the table for the meaning of the num-
Bit 11 = x ber 69 of the telegram "Monitoring of the
Bit 10 = x active display".
Bit 9 = x
Bit 8 = x
Pickup
Bit 7 = 1
Bit 6 = 1 Firing speed reached
Bit 5 = 1 f > parameter
Bit 4 = 1
Bit 3 = 1 Speed existing
Bit 2 = 1 without pickup (pickup = OFF): f > 15
Bit 1 = 1 Hz
Bit 0 = 1 with pickup (pickup = ON): f > 5 Hz

UGNEXPO Exponent Generator voltage USSEXPO Exponent Busbar voltage

IGNEXPO Exponent Generator current UNTEXPO Exponent Mains voltage
PGNEXPO Exponent Generator power PNTEXPO Exponent Mains power
PGNWD Step conversion factor Æ kW

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Meaning of the number 69 of the telegram " Currently active display message":

Number Meaning
0 GCB synchronization
1 MCB synchronization
2 GCB dead bus start
3 MCB dead bus start
4 Crank
5 Start pause
6 Cool down 000s (000s: the remaining time is displayed)
7 Engine stop!
8 Preglow
9 Purging operation
10 Initial state
11 Auxiliary prerun
12 Auxiliary postrun
13 Mains settling 000s (000s: the remaining time is displayed)
14 Lambda initial state
15 Sprinkler coasting
16 Ignition
17 --Internal--
18 --Internal--
19 --Internal--
20 --Internal--
21 --Internal--
22 --Internal--
23 --Internal--
24 Phase rotation incorrect!
25 Start without closing GCB and simultaneous emergency power
26 Start without closing GCB
27 Sprinkler operation (critical mode) and simultaneous emergency power
28 Sprinkler operation (critical mode)
29 Emergency power
30 TEST
31 Load TEST
32 --Internal--
33 --Internal--
34 --Internal--
35 --Internal--
36 --Internal--
37 --Internal--
38 --Internal--
39 --Internal--
40 --Internal--
41 --Internal--
42 --Internal--
43 --Internal--
44 --Internal--
45 --Internal--
46 --Internal--
47 Power reduction
...
255 No message on the display (basic screen)

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Receiving Telegram
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The CAN protocol for remote control of the GCP is available upon request. Woodward however recommends the
use of a GW 4. The following three data words can be received by the GCP. Refer to the GW 4 manual on how
to control several GCP control units.

Contents (words) Unit Note

MUX

No.

1/1 1 Set point value for the generator real power kW with control argument; see below
1/2 2 Set point value for the generator power fac- Example: FF9EH cos ϕ = c 0.98 (capacitive)
tor cos ϕ FF9DH cos ϕ = c 0.99 (capacitive)
0064H cos ϕ = 1.00
0063H cos ϕ = i 0.99 (inductive)
0062H cos ϕ = i 0.98 (inductive)
1/3 3 Control word Bit 15 = 1 --Internal--
Bit 14 = 1 --Internal--
Bit 13 = 1 --Internal--
Bit 12 = 1 --Internal--
Bit 11 = 1 --Internal--
Bit 10 = 1 --Internal--
Bit 9 = 1 --Internal--
Bit 8 = 1 --Internal--
Bit 7 = 1 --Internal--
Bit 6 = 1 --Internal--
Bit 5 = 1 --Internal--
Bit 4 = 1 Remote acknowledgement
Bit 3 = 1 Always "0"
Bit 2 = 1 Always "0"
Bit 1 = 1 Remote stop (high priority)
Bit 0 = 1 Remote start

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Framework Conditions To The CAN Bus

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Transmission Telegram
The data of the following table can be handled by a Gateway GW 4 or a PLC and can be transferred to other bus-
ses. A GCP is sending the data via circular CAN messages.

The transmitting rate of this communication is 125 kBaud.

The CAN ID, on which the GCP is sending is calculated as follows:

CAN ID = 800 + item/generator number (or 320 + item/generator number)

(The item number, Parameter 4, is adjustable and influences directly the CAN ID on which the item sends the
visualization message).

A visualization message which is send out of a GCP has 8 Bytes and is built as follows:

Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7

H‘DD MUX num- data word 1 data word 1 data word 2 data word 2 data word 3 data word 3
ber High-Byte Low Byte High-Byte Low Byte High-Byte Low Byte

In a visualization message the byte 0 is always used to show the hexadecimal value DD. This one defines the
message as a visualization message. As the complete transmission telegram of the GCP includes more than three
words byte 1 sends additionally a MUX number starting with 0. Therefore it is theoretically possible to send
(256 × 3 = 768) words via the CAN ID. The whole telegram is built up as follows:

Line 1: MUX number 0, word 1

Line 2: MUX number 0, word 2
Line 3: MUX number 0, word 3
Line 4: MUX number 1, word 1
Line 5: MUX number 1, word 2
Line 6: MUX number 1, word 3
.
.
Line (n): MUX number (n-1/3), word 1
Line (n+1): MUX number (n-1/2), word 2
Line (n+2): MUX number (n-1/1), word 3

n depends on the total length of the item special telegram and cannot be larger than H’FF.

Coding Of The Current Direction

The current direction can be recognized via the code word prefix. A positive transmitted value indicates power
export (power output, supply) and a negative transmitted value indicates power import (power input, consump-
tion).

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Coding Of The Power Set Point Value

The following power values may be pre-specified: constant/baseload power (C power), outgoing/export power (E
power) and incoming/import power (I power). The real power set point value is transmitted in binary form using
bits 0-13. The control argument must be transmitted in the basis of bits 14 and 15. In this case, the following cod-
ing applies:

Control argument Bit 15 Bit 14

C power 0 1
E power 0 0
I power 1 1

Example:
C power of 150 kW is to be compensated. The value transmitted is then:
01/00 0000 1001 0110 B Ö 4096 H

E power of 300 kW is to be compensated. The value transmitted is then:

00/00 0001 0010 1100 B Ö 012C H

I power of 600 kW is to be compensated. Negative power is transmitted. The value transmitted is then:
11/11 1101 1010 1000 B Ö FDA8 H

CAN IDs Guidance Bus

The IDs given in the following are reserved for the data exchange between GCPs and LS4s. If third-party devices
are connected to the bus, it has to be ensured their IDs do not result conflicts with these IDs.

CAN-ID in
[hex] [decimal]
GCP sends
Distribution message to other GCPs 180 + GENNO 384 + GENNO
Control message to LS4 (the GCP with the lowest ID) 311 785
Visualization 320 + GENNO 800 + GENNO
GCP receives
Distribution message from other GCP 180 + GENNO 384 + GENNO
Control message from an LS4 300 + GENNO 768 + GENNO
Configuration messages from a higher control 33F 831
LS4 sends
Logic message to other LS4s 180 + LS4NO 384 + LS4NO
Control message to GCP (the LS4 with the lowest ID) 300 + GENNO 768 + GENNO
LS4 receives
Logic message from other LS4 180 + LS4NO 384 + LS4NO
Control message from a GCP 311 785
Configuration messages and
configuration messages from a higher control 33F 831

[hex] [decimal]
GENNO = 1 to E 1 to 14 GENNO = Generator number
LS4NO = 11 to 1E 17 to 30 LS4NO = LS4 number

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Appendix D.
List of Parameters

Unit number P/N _____________________________ Rev ______________________________

Version GCP-30 ______________________________________________________________

Project _____________________________________________________________________

Serial number S/N _______________ Date _____________________________

Parameter Setting range Default value Customer setting

Software version - V x.xxxx - -

Enter code 0 to 9.999 XXXX
Direct para. YES/NO NO †Y †N †Y †N
Generator number 1 to 14 1
Language first/second first †f †s †f †s
Check event list YES/NO NO †Y †N †Y †N
GENERATOR AND MAINS ENVIRONMENT CONFIGURATION
Configure measuring YES/NO NO †Y †N †Y †N
Generator freq. f set 40.0 to 70.0 Hz 50.0 Hz
Rated system frequency 50.0 to 60.0 Hz 50.0 Hz
Gen.volt.transf. secondary 50 to 125/50 to 480 V 400 V
Gen.volt.transf. primary 0.05 to 65.0 kV 0.4 kV
Bus.volt.transf. secondary 50 to 125/50 to 480 V 400 V
Bus.volt.transf. primary 0.05 to 65.0 kV 0.4 kV
mains volt.trans. secondary 50 to 125/50 to 480 V 400 V
mains volt.trans primary 0.05 to 65.0 kV 0.4 kV
Gen.voltage U set 50 to 125/50 to 530 V 100/400 V
Rated voltage in system 50 to 125/50 to 480 V 100/400 V
Volt.meas./mon. Ph-neut/Ph-Ph [4/3] Ph-neut/Ph-Ph † 4/3 † 4/3
Ph-Ph/Ph-Ph [3/3] † 3/3 † 3/3
Ph-neut/Ph-neut [4/4] † 4/4 † 4/4
Current transf. generator 10 to 7,000/{X} A 500/{X} A
Power measuring gen. singlephase [1] threephase †1 †1
threephase [3] †3 †3
Rated power generator 5 to 9,999 kW 200 kW
Rated current generator 10 to 7,000 A 300 A
Analog in Pmains OFF/T{x} OFF
Analog in Pmains 0 to 20 mA 4 to 20 mA † 0-20 mA † 0-20 mA
4 to 20 mA † 4-20 mA † 4-20 mA
-
Analog in Pmains 0% 0 to +/-9,990/0 to +/-6,900 kW 200 kW
Analog in Pmains 100% 0 to +/-9,990/0 to +/-6,900 kW 200 kW
Current transf. mains 5 to 7,000/{X} A 500 {X} A
LS 4 mode ON/OFF OFF † on † off † on † off
Rated power in system 0 to 16,000 kW 1,600 kW
Temperature in Celsius [°C] Celsius [°C] † °C † °C
Fahrenheit [°F] † °F † °F
Pressure in bar bar † bar † bar
psi † psi † psi
Define level 1 code 0 to 9999 0001
Define level 2 code 0 to 9999 0002

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Parameter Setting range Default value Customer setting

CONTROLLER CONFIGURATION
Configure controller YES/NO NO †Y †N †Y †N
Initial state Frequency 0 to 100 % 50 %
P-gain Kpr 1 to 240 20
Reset time Tn 0.2 to 60.0 s 1.0 s
Derivative time Tv 0.00 to 6.00 s 0.00 s
Power controller Pset1 F/I/E 0 to 6,900 kW F 50 kW
Power controller Pset2 F/I/E 0 to 6,900 kW F 80 kW
Freq.controller ON/OFF ON † on † off † on † off
f-contr. active at: 0.0 to 70.0 Hz 40.0 Hz
Delay time for f-contr. 0 to 999 s 5s
Freq.controller ramp 1 to 50 Hz/s 10 Hz/s
F/P contr.type Three-step Analog † Three-st. † Three-st.
Analog † Analog † Analog
PWM † PWM † PWM
Freq.controller deadband 0.02 to 1.00 Hz 0.03 Hz
Freq.controller time pulse> 10 to 250 ms 80 ms
Freq.controller gain Kp 0.1 to 99.9 20.0
F/P contr.output See table +/-10 V
Level PWM 3.0 to 10.0 V 3.0 V
Stepper sign.frq (min.) 0 to 100 % 0%
Stepper sign.frq (max.) 0 to 100 % 100 %
Freq.controller gain Kpr 1 to 240 20
Freq.controller reset Tn 0.0 to 60.0 s 1.0 s
Freq.controller derivat.Tv 0.00 to 6.00 s 0.00 s
Starting point voltage 0 to 100 % 50 %
Volt.controller ON/OFF ON † on † off † on † off
Start voltage U control. 12.0 to 100.0 % 75 %
Delayed. Start U contr. 0 to 999 s 3s
V/Q contr.type Three-step Analog † Three-st. † Three-st.
Analog † Analog † Analog
Volt.controller dead band 0.1 to 15.0 % 0.9 %
Volt.controller time pulse> 20 to 250 ms 80 ms
Volt.controller gain Kp 0.1 to 99.9 20.0
V/Q contr.output See table +/-10 V
Stepper sign.vol (min.) 0 to 100 % 0%
Stepper sign.vol (max.) 0 to 100 % 100 %
Volt.controller gain Kpr 1 to 240 20
Volt.controller reset Tn 0.0 to 60.0 s 1.0 s
Volt.controller derivat.Tv 0.00 to 6.00 s 0.00 s
Pow.fact.contr. ON/OFF OFF † on † off † on † off
Pow.fact.contr. setpoint i0.70 to 1.00 to k0.70 1.00
Pow.fact.contr. dead band 0.5 to 25.0 % 0.5 %
Pow.fact.contr. gain Kp 0.1 to 99.9 20.0
Pow.fact.contr. gain Kpr 1 to 240 20
Pow.fact.contr. reset Tn 0.0 to 60.0 s 1.0 s
Pow.fact.contr. derivat.Tv 0.0 to 6.0 s 0.0 s

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Parameter Setting range Default value Customer setting

CONTROLLER CONFIGURATION
Power controller ON/OFF ON † on † off † on † off
power controller ramp 0 to 100 %/s 20 %/s
Power limit P max. 10 to 120 % 100 %
Power limit P min. 0 to 50 % 0%
Power setpoint external OFF/ T1 / T2 / T3 OFF † OFF † OFF
† T1 † T1
† T2 † T2
† T3 † T3
Analog input 0 to 20 mA 4 to 20 mA † 0-20 mA † 0-20 mA
4 to 20 mA † 4-20 mA † 4-20 mA
Ext.setpoint 0mA F/I/E 0 to 9,999 kW F0 kW
Ext.setpoint 20mA F/I/E 0 to 9,999 kW F200 kW
Power controller dead band 0.1 to 25.0 % 0.5 %
Power controller gain Kp 0.1 to 99.9 20.0
Powercontr. dead band ratio 1.0 to 9.9 2.0
Power controller gain Kpr 1 to 240 20
Power controller reset Tn 0.0 to 60.0 s 1.0 s
Power controller derivat.Tv 0.0 to 6.0 s 0.0 s
Warm up load derivat.Tv 5 to 110 % 15 %
Warm up load time 0 to 600 s 0s
Active power load-share ON/OFF ON † on † off † on † off
Act. load share factor 10 to 99 % 50 %
Reactive power load share ON/OFF OFF † on † off † on † off
React.load share factor 10 to 99% 50 %
LOAD MANAGEMENT CONFIGURATION
Configure automatic YES/NO NO †Y †N †Y †N
Loadd.start/stop at ter.3 ON/OFF OFF † on † off † on † off
Loadd.start/stop at ter.5 ON/OFF OFF † on † off † on † off
Minimum load generator 0 to 6,900 kW 15 kW
Add-on delay mains oper. 0 to 999 s 1s
Shed-off delay mains oper. 0 to 999 s 3s
Hysteresis add-. on/off op. 0 to 9,999 kW 5 kW
Reserve power mains op. 0 to 9,999 kW 10 kW
Priority of generators 0-14 0
Reserve power isol.op. 0 to 9,999 kW 20 kW
Add-on delay isol.op. 0 to 999 s 1s
Shed-off delay isol.op. 0 to 999 s 4s
Mains error - stop eng. ON/OFF OFF † on † off † on † off
Control via COM X1X5 ON/OFF OFF † on † off † on † off
Supervision COM X1X5 ON/OFF OFF † on † off † on † off
Ackn. F2,F3 via COM interf ON/OFF OFF † on † off † on † off
BREAKER CONFIGURATION
Configure breaker YES/NO NO †Y †N †Y †N
Breaker logic: EXTERNAL [EXT] PARALLEL † EXT † EXT
PARALLEL [PAR] † PAR † PAR
OPEN TRANSIT [OPEN] † OPEN † OPEN
CLOSED TRANSIT [CLOSE] † CLOSE † CLOSE
INTERCHANGE [CHANG] † CHANG † CHANG
Add-on/off ramp max.time 0 to 999 s 20 s
Open GCB with F2 max.time 0 to 999 s 10 s
GCB close.relay Impulse [I] Constant †I †I
Constant [C] †C †D
GCB open relay NO-contact [NO] NO-contact † NO † NO
NC-contact [NC] † NC † NC

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Parameter Setting range Default value Customer setting

BREAKER CONFIGURATION
Synchronize
synch df max 0.02 to 0.49 Hz 0.20 Hz
-
Synchronize
.. df min 0.0 to 0,49 Hz 0.10 Hz
Synchronize
.. dV max 1.0 to 20.0 % 2.0 %
Synchronize
.. time pulse> 0.02 to 0.26 s 0.24 s
Closing time
.. GCB 40 to 300 ms 80 ms
Closing time
.. MCB 40 to 300 ms 80 ms
Automat.breaker
.. deblocking ON/OFF OFF † on † off † on † off
Sync.time contr.
.. ON/OFF ON † on † off † on † off
Sync.time contr.
.. delay 10 to 999 s 180 s
GCB dead bus op.
.. ON/OFF ON † on † off † on † off
GCB dead bus op.
.. df max 0.05 to 5.00 Hz 2.0 Hz
GCB dead bus op.
.. dV max. 1.0 to 15.0 % 10.0 %
GCB dead bus op
.. max.time 0 to 999 s 30 s
MCB dead bus op.
synch ON/OFF ON † on † off † on † off
Switching-on GCB
induct. ON/OFF ON † on † off † on † off
Switching-on GCB
.. df max 0.05 to 9.99 Hz 0.20 Hz
Switching-on GCB
.. df min 0.0 to -9.99 Hz -
0.10 Hz
Switching-on GCB
.. T.impuls > 0.02 to 0.26 s 0.24 s
Automat.breaker
.. deblocking ON/OFF ON † on † off † on † off
Switch.time cntr
.. ON/OFF ON † on † off † on † off
Switch.time cntr
induct. delay 2 to 999 s 180 s
Supervision GCB ON/OFF ON † on † off † on † off
Supervision MCB ON/OFF ON † on † off † on † off
GCP31 Mains decoupling via GCB [GCB] GCB † GCB † GCB
GCB->EXT [GCB>EX] † GCB>EX † GCB>EX
EXT [EXT] † EXT † EXT
† EX>GCB † EX>GCB
EXT->GCB [EX>GCB]
GCP32 Mains decoupling via GCB [GCB] GCB † GCB † GCB
GCB->MCB [GCB>MC] † GCB>MC † GCB>MC
MCB [MCB] † MCB † MCB
† MC>GCB † MC>GCB
MCB->GCB [MC>GCB]
Mains decoupling -> after 0.10 to 5.00 s 0.14 s
Switch MCB in STOP mode YES/NO NO †Y †N †Y †N
EMERGENCY POWER CONFIGURATION
Configure emergency YES/NO NO †Y †N †Y †N
Emergency power ON/OFF ON † on † off † on † off
Emergency power start del. 0.5 to 99.9 s 3.0 s
MONITORING CONFIGURATION
Configure monitoring YES/NO NO †Y †N †Y †N
Gen.power monit. ON/OFF OFF † on † off † on † off
Gen.power monit. resp.val1 0 to 9,999 kW 100 kW
Gen.power monit. hyst.lv1 0 to 999 kW 10 kW
Gen.power monit. delay lv1 0 to 650 s 1s
Gen.power monit. resp.val2 0 to 9,999 kW 120 kW
Gen.power monit. hyst.lv2 0 to 999 kW 10 kW
Gen.power monit. delay lv2 0 to 650 s 1s
Mains power mon. ON/OFF OFF † on † off † on † off
Mains power mon. res.val. I/E 0 to 9,999 kW E100 kW
Mains power mon. hysteresis 0 to 999 kW 10 kW
Mains power mon. delay 0 to 650 s 1s
Overload monit. ON/OFF OFF † on † off † on † off
Gen.overload MOP resp.value 80 to 150 % 120 %
Gen.overload MOP delay 0 to 99 s 1s
Gen.overload IOP resp.value 80 to 150 % 105 %
Gen.overload IOP delay 0 to 99 s 1s

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Parameter Setting range Default value Customer setting

MONITORING CONFIGURATION
Rev./red.power monitoring ON/OFF OFF † on † off † on † off
-
Rev./red.power resp.value -99 to +99 % 10 %
Rev./red.power delay 0,0 to 9,9 s 1.0 s
Load unbalanced ON/OFF OFF † on † off † on † off
Load unbalanced max. 0 to 100 % 30 %
Load unbalanced delay 0.02 to 9.98 s 1.00 s
Gen.overcurrent monitoring ON/OFF OFF † on † off † on † off
Gen.overcurrent limit 1 0 to 300 % 110 %
Gen.overcurrent delay 1 0.02 to 9.98 s 1.00 s
Gen.overcurrent limit 2 0 to 300 % 120 %
Gen.overcurrent delay 2 0.02 to 9.98 s 0.04 s
Gen.overcurrent Cool down ON/OFF OFF † on † off † on † off
Gen.frequency- monitoring ON/OFF ON † on † off † on † off
Gen.overfreq. f > 50.0 to 140.0 % 110.0 %
Gen.overfreq. delay 0.02 to 9.98 s 0.30 s
Gen.underfreq. f < 50.0 to 140.0 % 90.0 %
Gen.underfreq. delay 0.02 to 9.98 s 0.30 s
Engine overspeed > 0 to 9,999 rpm 1,900 rpm
Gen.voltage monitoring ON/OFF ON † on † off † on † off
Gen.overvoltage U > 20.0 to 150.0 % 110.0 %
Gen.overvoltage delay 0.02 to 9.98 s 0.30 s
Gen.undervoltage U < 20.0 to 150.0 % 90.0 %
Gen.undervoltage delay 0.2 to 9.98 s 0.30 s
Mains frequency monitoring ON/OFF ON † on † off † on † off
Mains overfreq. f > 80.0 to 140.0 % 110.0 %
Mains overfreq. delay 0.02 to 9.98 s 0.06 s
Mains underfreq. f < 80.0 to 140.0 % 90.0 %
Mains underfreq. delay 0.02 to 9.98 s 0.06 s
Mains voltage monitoring ON/OFF ON † on † off † on † off
Mains overvolt. U > 20.0 to 150.0 % 110.0 %
Mains overvolt. delay 0.02 to 9.98 s 0.06 s
Mains undervolt. U < 20.0 to 150.0 % 90.0 %
Mains undervolt. delay 0.02 to 9.98 s 0.06 s
Phase shift monitoring ON/OFF ON † on † off † on † off
Monitoring one-phase [1] three-phase †1 †3 †1 †3
three-phase [3]
Phase shift one-phase 3 to 30 ° 12 °
Phase shift three-phase 3 to 30 ° 8°
Mains settling time 0- to 999 s 10 s
Batt.undervolt. U < 9.5 to 30.0 V 10.0 V
Batt.undervolt. delay 0 to 99 s 10 s
Horn self reset 1 to 9,999 s 180 s
DISCRETE INPUTS CONFIGURATION
Configure dig.inputs YES/NO NO †Y †N †Y †N
Dig.input 1234 function E/D DDDD
Dig.input 1234 delay 0 to 9 0000
Delayed by 1234 eng.speed Y/N NNNN
Dig.input 1234 error class 0 to 3 3210
Dig.input 5678 function E/D DDDD
Dig.input 5678 delay 0 to 9 0000
Delayed by 5678 eng.speed Y/N NNNN
Dig.input 5678 error class 0 to 3 3111
Dig.input 9ABC function E/D DDDD
Dig.input 9ABC delay 0 to 9 0000
Delayed by 9ABC eng.speed Y/N NNNN
Dig.input 9ABC error class 0 to 3 1111
Dig.input DEFG function E/D DDDD
Dig.input DEFG delay 0 to 9 0000
Delayed by DEFG eng.speed Y/N NNNN
Dig.input DEFG error class 0 to 3 1111

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Parameter Setting range Default value Customer setting

DISCRETE INPUTS CONFIGURATION

Errortxt.term.34 any EMERGENCY OFF
Errortxt.term.35 any terminal 35
Errortxt.term.36 any terminal 36
Errortxt.term.61 any terminal 61
Errortxt.term.62 any terminal 62
Errortxt.term.63 any terminal 63
Errortxt.term.64 any terminal 64
Errortxt.term.65 any terminal 65
Errortxt.term.66 any terminal 66
Errortxt.term.67 any terminal 67
Errortxt.term.68 any terminal 68
Errortxt.term.69 any terminal 69
Errortxt.term.70 any terminal 70
Errortxt.term.71 any terminal 71
Errortxt.term.72 any terminal 72
Errortxt.term.73 any terminal 73
Firing speed by Term. 62 ON/OFF OFF † on † off † on † off
Op.mode blocked by Ter.63 ON/OFF OFF † on † off † on † off
Breaker logic by Term64 ON/OFF OFF † on † off † on † off
Breaker logic: EXTERNAL [EXT] EXTERNAL † EXT † EXT
PARALLEL [PAR] † PAR † PAR
OPEN TRANSIT [OPEN] † OPEN † OPEN
CLOSED TRANSIT [CLOSE] † CLOSE † CLOSE
INTERCHANGE [INCHG] † INCHG † INCHG
Close GCB asap by Ter.67 ON/OFF OFF † on † off † on † off
Emergency OFF by Ter.68 ON/OFF OFF † on † off † on † off
Idle mode by Term.70 ON/OFF OFF † on † off † on † off
Function term.6 Sprinkler operation [SO] ExA † SO † SO
Engine enabled [EE] † EE † EE
ext.acknowledgment [ExA] † ExA † ExA
STOP mode [SM] † SM † SM
Engine blocked [EB] † EB † EB
Start without CB [SwB] † SwB † SwB
Start withno GCB cool down ON/OFF OFF † on † off † on † off
Sprinkler shutd. F1 active ON/OFF OFF † on † off † on † off
ANALOG INPUTS CONFIGURATION
Configure analg.inp. YES/NO NO †Y †N †Y †N
Analog input 1 scalable ON/OFF ON † on † off † on † off
Name and unit any Analog 1
Analog input 1 0 to 20 mA 4 to 20 mA † 0-20 mA † 0-20 mA
4-20 mA † 4-20 mA † 4-20 mA
Value at 0% -9,999 to +9,999 0
Value at 100% -9,999 to +9,999 100
Limit warning value -9,999 to +9,999 80
Limit shutdown value -9,999 to +9,999 90
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] High limit mon. † high † high
low limit mon. [low] † low † low
Analog input 2 scalable ON/OFF ON † on † off † on † off
Name and unit any Analog 2
Analog input 2 0 to 20 mA 4 to 20 mA † 0-20 mA † 0-20 mA
4 to 20 mA † 4-20 mA † 4-20 mA
Value at 0% -9,999 to +9,999 0
Value at 100% -9,999 to +9,999 100
Limit warning value -9,999 to +9,999 80
Limit shutdown value -9,999 to +9,999 90
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] High limit mon. † high † high
low limit mon. [low] † low † low

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Parameter Setting range Default value Customer setting

ANALOG INPUTS CONFIGURATION

Analog input 3 scalable ON/OFF ON † on † off † on † off
Name and unit any Analog 3
Analog input 3 0 to 20 mA 4 to 20 mA † 0-20 mA † 0-20 mA
4 to 20 mA † 4-20 mA † 4-20 mA
Value at 0% -9,999 to +9,999 0
Value at 100% -9,999 to +9,999 100
Limit warning value -9,999 to +9,999 80
Limit shutdown value -9,999 to +9,999 90
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] High limit mon. † high † high
low limit mon. [low] † low † low
Temperature 4 Pt100 ON/OFF ON † on † off † on † off
***name**** 000°C any Analog 4
Limit warning 0 to 200 °C 80 °C
Limit shutdown 0 to 200 °C 90 °C
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] High limit mon. † high † high
low limit mon. [low] † low † low
Temperature 5 Pt100 ON/OFF ON † on † off † on † off
***name**** 000°C any Analog 5
Limit warning 0 to 200 °C 80 °C
Limit shutdown 0 to 200 °C 90 °C
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] High limit mon. † high † high
low limit mon. [low] † low † low
Analog input 6 VDO ON/OFF ON † on † off † on † off
Name and unit any Analog 6
Analog input 6 VDO 0 to 5 bar 0 to 5 bar † 0-5 bar † 0-5 bar
0 to 10 bar † 0-10 bar † 0-10 bar
Limit warning value 0.0 to 10.0 bar 2.0 bar
Limit shutdown value 0.0 to 10.0 bar 1.0 bar
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] low limit mon. † high † high
low limit mon. [low] † low † low
Analog input 7 VDO ON/OFF ON † on † off † on † off
Name and unit any Analog 7
Limit warning value 40 to 120 °C 80 °C
Limit shutdown 40 to 120 °C 90 °C
Delay limit 1/2 0 to 650 s 1s
Monitoring for High limit mon. [high] High limit mon. † high † high
low limit mon. [low] † low † low
Ana.in 12345678 SV.del. J/N NNNNNJNN
Ana.in 12345678 control J/N NNNNNNNN
OUTPUT CONFIGURATION
Configure outputs YES/NO NO †Y †N †Y †N
Analg.out.12O121 Parameter 0 to 22 1
Analg.out.12O121 0-00 mA OFF 0 to 20 mA † OFF † OFF
0 to 20 mA † 0-20mA † 0-20mA
4 to 20 mA † 4-20 mA † 4-20 mA
Analg.out.12O121 0% 0 to 9,990 0
Analg.out.12O121 100% 0 to 9,990 200
Analg.out.122123 Parameter 0 to 22 1
Analg.out.122123 0-00 mA OFF 0 to 20 mA † OFF † OFF
0 to 20 mA † 0-20mA † 0-20mA
4 to 20 mA † 4-20 mA † 4-20 mA
Analg.out.122123 0% 0 to 9,990 0
Analg.out.122123 100% 0 to 9,990 200

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Parameter Setting range Default value Customer setting

OUTPUT CONFIGURATION
Assignm.relay 1 See table 1
Assignm.relay 2 See table 2
Assignm.relay 3 See table 3
Assignm.relay 4 See table 4
Assignm.relay 5 See table 5
Assignm.relay 6 See table 84
Assignm.relay 7 See table 85
ENGINE CONFIGURATION
Configure engine YES/NO NO †Y †N †Y †N
Aux.services prerun 0 to 999 s 0s
Aux.services postrun 0 to 999 s 0s
Start-stop-logic for DIESEL DIESEL † DIESEL † DIESEL
GAS † GAS † GAS
EXTERNAL [EXT] † EXT † EXT
Min.speed for ignit. 0 to 999 rpm 100 rpm
Gas Ignition delay 0 to 99 s 3s
.. Gasvalve delay 0 to 99 s 5s
.. Max. attempts to start 1 to 6 3
.. Starter time 2 to 99 s 10 s
.. Start pause time 1 to 99 s 8s
.. f lower before start ON/OFF OFF † on † off † on † off
Gas time f lower bef.start 0 to 999 s 5s
Diesel Preglow time 0 to 99 s 3s
.. Max. attempts to Start 1 to 6 3
.. Starter time 2 to 99 s 10 s
.. Start pause time 1 to 99 s 5s
.. f lower before start ON/OFF OFF † on † off † on † off
.. time f lower bef.start 0 to 999 s 5s
Diesel Fuel relay logic Open to stop [OPEN] Open to stop † OPEN † OPEN
Close to stop [STOP] † STOP † STOP
Cool down time 0 to 999 s 15 s
Delayed engine monitoring 1 to 99 s 8s
Firing speed reached f> 5 to 70 Hz 15 Hz
Pickup input ON/OFF ON † on † off † on † off
Number of pickup teeth 30 to 280 160
Gen.rated speed 0 to 3,000 rpm 1,500 rpm
COUNTER CONFIGURATION
Configure counters YES/NO NO †Y †N †Y †N
Service interval in 0 to 9,999 h 300 h
Set oper.hours counter 0 to 65,000 h 0h
Set start counter 0 to 32,000 0
kWh counter set in kWh kWh † kWh † kWh
MWh † MWH † MWH
kWh counter set 0 to 65,500 kWh/MWh 0 kWh
Time 00:00 to 23:59 00:00
Year,month 00 to 99,01 to 12 00,00
Day/weekday 01 to 31/1 to 7 00,0

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Manual 37278A GCP-30 Series - Genset Control

Appendix E.
Service Options

Product Service Options

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The following factory options are available for servicing Woodward equipment, based on the standard Wood-
ward Product and Service Warranty (5-01-1205) that is in effect at the time the product is purchased from
Woodward or the service is performed. If you are experiencing problems with installation or unsatisfactory per-
formance of an installed system, the following options are available:

• Consult the troubleshooting guide in the manual.

• Contact Woodward technical assistance (see "How to Contact Woodward" later in this chapter) and discuss
your problem. In most cases, your problem can be resolved over the phone. If not, you can select which
course of action you wish to pursue based on the available services listed in this section.

Returning Equipment For Repair

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If a control (or any part of an electronic control) is to be returned to Woodward for repair, please contact Wood-
ward in advance to obtain a Return Authorization Number. When shipping the unit(s), attach a tag with the fol-
lowing information:

• name and location where the control is installed;

• name and phone number of contact person;
• complete Woodward part numbers (P/N) and serial number (S/N);
• description of the problem;
• instructions describing the desired type of repair.

CAUTION
To prevent damage to electronic components caused by improper handling, read and observe the pre-
cautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed
Circuit Boards, and Modules.

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Manual 37278A GCP-30 Series - Genset Control

Packing A Control
Use the following materials when returning a complete control:

• protective caps on any connectors;

• antistatic protective bags on all electronic modules;
• packing materials that will not damage the surface of the unit;
• at least 100 mm (4 inches) of tightly packed, industry-approved packing material;
• a packing carton with double walls;
• a strong tape around the outside of the carton for increased strength.

Return Authorization Number RAN

When returning equipment to Woodward, please telephone and ask for the Customer Service Department in
Stuttgart, Germany [+49 (0) 711 789 54-0]. They will help expedite the processing of your order through our dis-
tributors or local service facility. To expedite the repair process, contact Woodward in advance to obtain a Re-
turn Authorization Number, and arrange for issue of a purchase order for the unit(s) to be repaired. No work will
be started until a purchase order is received.

NOTE
We highly recommend that you make arrangement in advance for return shipments. Contact a
Woodward customer service representative at +49 (0) 711 789 54-0 for instructions and for a Re-
turn Authorization Number.

Replacement Parts
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When ordering replacement parts for controls, include the following information:
• the part numbers P/N (XXXX-XXX) that is on the enclosure nameplate;
• the unit serial number S/N, which is also on the nameplate.

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Manual 37278A GCP-30 Series - Genset Control

How To Contact Woodward

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Please contact following address if you have questions or if you want to send a product for repair:

Woodward Governor Company

Leonhard-Reglerbau GmbH
Handwerkstrasse 29
70565 Stuttgart - Germany

Phone: +49 (0) 711 789 54-0 (8.00 - 16.30 German time)
Fax: +49 (0) 711 789 54-100
eMail: sales-stuttgart@woodward.com

For assistance outside Germany, call one of the following international Woodward facilities to obtain the address
and phone number of the facility nearest your location where you will be able to get information and service.

Facility Phone number

USA +1 (970) 482 5811
India +91 (129) 230 7111
Brazil +55 (19) 3708 4800
Japan +81 (476) 93 4661
The Netherlands +31 (23) 566 1111

You can also contact the Woodward Customer Service Department or consult our worldwide directory on
Woodward’s website (www.woodward.com) for the name of your nearest Woodward distributor or service fa-
cility. [For worldwide directory information, go to www.woodward.com/ic/locations.]

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Manual 37278A GCP-30 Series - Genset Control

Engineering Services
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Woodward Industrial Controls Engineering Services offers the following after-sales support for Woodward prod-
ucts. For these services, you can contact us by telephone, by e-mail, or through the Woodward website.

• Technical support
• Product training
• Field service during commissioning

Technical Support is available through our many worldwide locations, through our authorized distributors, or
through GE Global Controls Services, depending on the product. This service can assist you with technical ques-
tions or problem solving during normal business hours. Emergency assistance is also available during non-
business hours by phoning our toll-free number and stating the urgency of your problem. For technical engineer-
ing support, please contact us via our toll-free or local phone numbers, e-mail us, or use our website and refer-
ence technical support.

Product Training is available on-site from several of our worldwide facilities, at your location, or from GE
Global Controls Services, depending on the product. This training, conducted by experienced personnel, will as-
sure that you will be able to maintain system reliability and availability. For information concerning training,
please contact us via our toll-free or local phone numbers, e-mail us, or use our website and reference customer
training.

Field Service engineering on-site support is available, depending on the product and location, from our facility
in Colorado, or from one of many worldwide Woodward offices or authorized distributors. Field engineers are
experienced on both Woodward products as well as on much of the non-Woodward equipment with which our
products interface. For field service engineering assistance, please contact us via our toll-free or local phone
numbers, e-mail us, or use our website and reference field service.

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Technical Assistance
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If you need to telephone for technical assistance, you will need to provide the following information. Please write
it down here before phoning:

Contact
Your company____________________________________________________

Your name_______________________________________________________

Phone number ____________________________________________________

Fax number ______________________________________________________

Control (see name plate)

Unit no. and revision: P/N:____________________ REV: ____________

Unit type easYgen-___________________________________

Serial number S/N _______________________________________

Description of your problem

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

Please be sure you have a list of all parameters available. You can print this using LeoPC1. Additionally you can
save the complete set of parameters (standard values) and send them to our Service department via e-mail.

Page 168/169 © Woodward

 We appreciate your comments about the content of our publications.
Please send comments to: icinfo@woodward.com
Please include the manual number from the front cover of this publication.

Woodward Governor Company

Leonhard-Reglerbau GmbH
Handwerkstrasse 29 - 70565 Stuttgart - Germany
Phone +49 (0) 711 789 54-0 • Fax +49 (0) 711 789 54-100
sales-stuttgart@woodward.com

Homepage

http://www.woodward.com/smart-power

Woodward has company-owned plants, subsidiaries, and branches, as well as authorized

distributors and other authorized service and sales facilities throughout the world.

Complete address/phone/fax/e-mail information

for all locations is available on our website (www.woodward.com).

04/9/S