Energy Division

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Installation and Operating Instructions

GEN-AUTO

Tyco Electronics UK Limited

Crompton Instruments
Freebournes Road, Witham, Essex, CM8 3AH, UK
Tel: +44 1376 509 509
Fax: +44 1376 509 511

Contents

Page

Section 1 Introduction

Section 2 Installation

5
2.1 Unpacking

2.2 Unit Configuration

2.3 Mechanical Installation

2.4 Electrical Connections

2.4.1

Charge Generator current

12

Section 3 Programming

GENAUTO MANUAL

13

3.1 Procedure

13

3.2 Program functions

16

3.2.1

Alternator Voltage

16

3.2.2

Alternator Frequency

16

3.2.3

Battery voltage lower limit

17

3.2.5

Speed sensing input selection

17

3.2.6

Stop/Fuel Solenoid selection

17

3.2.7

Stop magnet energising time

17

3.2.8

Engine started signals

18

3.2.9

Battery Voltage

18

3.2.10

Engine Starting

18

3.2.12

Oil pressure bypass time

19

3.2.13

Control on delay

19

3.2.14

Engine cooling time

19

3.2.15

Spare Inputs 1-2-3

19

3.2.16

Configurable relay outputs 1-2

20

3.2.17

Maintenance Indication

20

3.2.18

Operator passwor

20

3.2.19

Technician Password

20

Issue 3 06/2004

Contents

Page

Section 4 Commissioning

21

Section 5 Operation

22
5.1 Controls and Indicators

22

5.2 Starting the Engine

24

5.3 Stopping the Engine

24

Section 6 Fault Finding

25

6.1 General

25

6.2 Fault indications

25

6.2.1

Low Oil Pressure LED

6.2.2

High Temperature LED

25
25

6.2.3

Start Failure LED

25

6.2.4

Charge generator Failure LED

26

6.2.5

Low/High Speed LED

26

6.2.6

Alternator Voltage Failure LED

26

6.2.7

EStP Emergency Stop

26

6.2.8

bAT1 - Low Battery Voltage message

26

6.2.9

bAT2 - Weak Battery Alarm message

26

6.2.10

bAEr Routine Maintenance Due

27

Section 7 Specification

28

Section 8 PC Interface

30
8.1 Introduction
8.2 Installation
8.2.1

To run the software

8.3 Description

30
30
31
31

8.3.1

Observation Window

32

8.3.2

Operator Parameters Window

33

8.3.3

Technician Parameters Window

8.4 Main Menu

33
34

8.4.1

File

34

8.4.2

Programming

34

8.4.3

Settings

35

Contents

Page

8.5 Operation

Index

36

8.5.1

Accessing Operator Parameters Window

36

8.5.2

Accessing Technician Parameters Window

37

8.5.3

Loading a Configuration File From Disc

37

8.5.4

Saving Parameters to a Configuration File

38

8.5.5

Uploading Parameters from the Unit

38

8.5.6

Downloading Parameters to the unit

38
39

Section 1 Introduction
These products provide control and protection in the operation of a generator set. The units
allow starting and stopping of the engine and indicates status and fault conditions. The unit
monitors:

Engine temperature,

Oil pressure,

Charging Alternator

Alternator output (voltage and frequency).

It controls:

Engine fuel supply or engine stopping, via external solenoid

Starter motor, via external relay.

Alarm horn

Preheating (configurable relay feature)

Load transfer (configurable relay feature)

A four-digit, seven-segment display provides extensive monitoring of unit and alternator

parameters, including:

Alternator output voltage and frequency

Engine RPM

Battery voltage

Elapsed time

Error indication

Program parameters

The unit is extensively programmable, with password protection on two levels.

In the event that the engine fails to start on the first attempt, the attempt will be repeated a
programmed number of times or until successful.
If a fault is detected, the unit shuts down the engine and indicates the failure by flashing an
appropriate fault LED.
Remote fuel, start and emergency stop inputs provide for remote control of the engine.
Three user-defined inputs are included that sound an external horn, flash indicators on the panel
and can be programmed to stop the engine.
Two extra outputs can be configured to act on an alarm, when the engine is running, when a
load can be transferred to the alternator, or when engine preheating is required.
The operational parameters of the unit can be monitored and controlled from a PC via a built-in
RS-232 port.

Section 2 Installation
2.1 Unpacking
Carefully unpack the unit and check for damage to the unit or to the cables supplied. Retain the
packing in case of future need, e.g. for returning the unit for calibration.
Check the contents, as follows:

One GEN-AUTO

Operating Manual

Screw clamp electrical connectors

Panel mounting clamps

Report any shortage or damage to your local sales office as soon as possible.

2.2 Unit Configuration

The unit can be programmed using buttons and display on the front panel. Refer to Section 3
Programming for details.
Warning :

The generator can be started remotely via the Remote Start/Stop input if the
Remote Fuel Input is high, irrespective of the position of the Key switch on the
front panel of this unit. When using the remote start feature, the installer
should connect sound and light warning devices to meet local safety codes and
ensure that personnel are warned prior to commencing a remote starting
sequence.

2.3 Mechanical Installation

The unit is designed for panel mounting. Fixing is by two screw fixings.
1.

Remove the fixings from the unit, if fitted, and unscrew the screws in the fixings.

2.

Insert the unit in the panel cut-out from the front. Maximum panel thickness is 7 mm
(0.28 inch).

3.

Insert the fixings in the slots at the diagonal corners of the unit and tighten the fixing screws
to secure the unit against the panel. See Figure 2.1.

Figure 2.1 Unit fixing

Figure 2.1 Front view and Panel cut-out

Figure 2.3 Side view

2.4 Electrical Connections

Warning: Beware of the high mains voltages connected to this unit.

Figure 2.4 Rear view

Figure 2.5 GEN-AUTO single phase connections schematic

Figure 2.6 GEN-AUTO three phase connections schematic

Table 1 shows the connections and recommended cable sizes. Table 2 describes the functions of
the connections.
Table 1 Unit wiring
Pin

Description

Cable
size
(mm)
2.5

Notes

Output to Start solenoid

+ DC supply from pin 2.

12A maximum.

Positive battery supply input

2.5

Supplies external solenoids

Output to Fuel solenoid

2.5

+ DC supply from pin 2

12A maximum

Output to horn

1.0

+ DC supply from pin 7 5A maximum

Configurable output 2

1.0

5A maximum

Configurable output 1

1.0

5A maximum

Positive battery supply input

2.5

Supplies unit, horn and configurable

outputs.

Alternator neutral/negative battery

supply to unit

2.5

Alternator neutral/negative battery

supply to chassis

2.5

14

Alternator Neutral

1.0

15

L1 alternator input

1.0

16

L2 alternator input

1.0

3-phase only

17

L3 alternator input

1.0

3-phase only

18

Input from charge generator

1.0

Terminal must be left unconnected if

not used.

19

Input from Low Oil Pressure switch

0.5

Switch to 0V.

20

Input from High Temperature switch.

0.5

Switch to 0V.

21

Input from Remote Start/Stop switch

0.5

Switch to 0V to Start. Open switch to Stop.

22

Emergency stop input

0.5

Normally closed. Open on emergency.

23

Input from Spare switch 1.

0.5

Switch to 0V.

24

Input from Spare switch 2

0.5

Switch to 0V.
Switch to 0V.

25

Input from Spare switch 3.

0.5

26

Input from magnetic pick-up

0.5

27

Input from magnetic pick-up

0.5

10

WARNING: Remote Starting. Arrangements must be made to prevent remote starting of the
engine while engine maintenance is being carried out. This can be achieved by
using a key switch as the remote double-pole switch, such that the key can be
removed to prevent remote starting.

Table 2 Connection functions

Pin

Function

Output to Start solenoid. +DC from pin 2. Controls starter motor.

Battery positive input. +12 or +24V. Feeds external solenoids

Output to Fuel/Stop solenoid. +DC from pin 2. Controls fuel to engine or controls
engine stopping.

Output to horn. +DC from pin 7. Alarm output.

Configurable output 2

Configurable output 1

Positive battery input. +12V or +24V. Feeds unit, horn and configurable outputs.

Battery negative / neutral (0V) to the Unit.

Battery negative / neutral (0V) connection to chassis.

15

L1

16

L2

17

L3

18

Charge generator excitation current. Is used to detect when engine has started.
See Section 2.4.1 Charge Generator current.

19

Input from Low Oil Pressure switch. Normally closed contact to 0V. Open on low
pressure. Can be used to detect when engine has started.

20

Input from High Temperature switch. Switched to 0V when engine temperature exceeds
thermostat setting.

21

Input from remote Start switch. Normally open contact. Closed to 0V to start engine.
Open switch to stop engine.

22

Input from Emergency Stop switch. Contact normally closed to 0V. Open on emergency
to stop the engine.

23

Spare 1 input. Normally open. When switched to 0V, sounds the horn and flashes
indicator on panel. Can be programmed to stop the engine..

24

Spare 2 input. Normally open. When switched to 0V, sounds the horn and flashes
indicator on panel. Can be programmed to stop the engine.

25

Spare 3 input. Normally open. When switched to 0V, sounds the horn and flashes
indicator on panel. Can be programmed to stop the engine.

26

Input from magnetic pickup. Unit can be programmed for number of teeth detected
on wheel. 3-35 V p-p 35-10000 Hz.

27

Can be programmed to provide contact closures when: alarm

occurs, engine is running or load transfer is permitted.

Voltage inputs from alternator. Unit can be programmed to use

frequency of alternator output to detect when engine has started.
Pins 16 and 17 not used on single phase applications.

11

2.4.1 Charge Generator current

The unit uses the Charge generator current input to detect when the engine is running. The
GEN-AUTO connection effectively replaces the usual charge indicator lamp. It supplies current to
the rotor coil from the battery until the engine is running, at which time the Charge Generator
powers the rotor via the diode trio. The GEN-AUTO circuits sense the resultant voltage at pin 18.
This is initially low at near Battery -, as the circuit supplies a high current to the rotor coil, rising
to near Battery + once the engine is running. Figure 2.9 shows the arrangement.

Figure 2.9 Input from Charge generator

12

Section 3 Programming
3.1 Procedure
Many of the unit functions can be set by programming. Programming can be carried out only
while the unit is in Stop mode. Proceed as follows:

1.

If the unit is off, press the

button to turn it on.

2.

Press the

3.

Press the
lights.

4.

You may enter either an Operator password or a Technician password. The Operator
password restricts access to the primary programming functions P00-08 and P38 only. The
Technician password gives access to all programming functions. If you wish to enter the

button. If the engine is running, it will stop.

button and hold it, for approximately 10 seconds, until the PROG LED

Operator password, press

ten seconds and then

. To enter the Technician password, press

for

. In both cases, the display shows 0000.

5.

Use the
and
keys to increment and decrement the display until it shows
the correct password. When the unit is initially supplied, the password for both Operator
and Technician is 0000. To prevent unauthorised access, use parameter P37 to change the
Operator password and parameter P38 to change the Technician password. The Technician
password is only accessible if you have entered as a technician.

6.

Press
to confirm your password entry. If the password is incorrect, the unit will
drop out of Program mode. If the password is correct, the display will show the first
programmable parameter P00. You are now in program mode. If no keys are pressed for a
period of approximately 20 seconds, the unit will return to the normal operating mode.

7.

To view or change a parameter, press the

parameter number and then press
value of the selected parameter.

and

key repeatedly until the display shows the

to select it. The display will show the current

8.

Use the

keys to set the displays to the required value.

9.

Press
to accept the displayed value. The display will show the number of the next
parameter in the sequence.

13

10. To exit the programming mode, press

Table 3 Programmable function definitions

Prg
No.

Definition of parameter

Unit

Lower /
Upper Limit

Default

P00

Alternator Voltage Lower Limit

VAC

60-600

300

P01

Alternator Voltage Upper Limit

VAC

60-600

440

P02

Speed Lower Limit

Hz.

30.0-75.0

47.0

P03

Speed Upper Limit

Hz.

30.0-75.0

53.0

P04

Battery Voltage Lower Limit

VDC

7.2-24.0

8.0

P05

Reserved

P06

Periodic Maintenance Hour Set

Hour

0-9999

5000

P07

Periodic Maintenance Reset

Press DECREMENT Button For Reset

P08

Horn Duration

Second

0 = Contin.
1-999

60

P09

Preheat time

Second

0 99

10

P10

Single/Three Phase Selection

1/3

P11

Nominal Alternator Frequency

Hz.

50 / 60

50

P12

Nominal Speed (RPM)

Rpm

500-5000

3000

P13

Number of Flywheel Teeth

Number

1-1000

100

Number

0/1

Stop / Fuel

Stop / Fuel

Fuel

0-99

20

P14

Reserved

P15

Speed Sensing Input Selection

0-Alternator Signal (Internal)

P16

Stop/Fuel Solenoid Selection

P17

Stop Magnet Energising Time

Second

P18

Engine Started Signal

0: No, 1: Yes

P18.0

Charge Generator

0/1

P18.1

Speed

0/1

P18.2

Alternator Voltage

0/1

1-Magnetic Pickup

P18.3

Oil Pressure

0/1

P19

Battery Voltage Weak Limit

VDC

6.0-14.4

7.0

P20

Battery Voltage Weak Control Time

Second

1-99

14

Prg
No.

Definition of parameter

Unit

Lower /
Upper Limit

Default

P21

Alternator Voltage Limit For

Crank Disconnection

VAC

40-360

300

P22

Speed Limit For

Crank Disconnection

Hz.

20.0-45.0

40.0

P23

Number Of Starting Attempts

Number

1-10

P24

Starting Attempt Duration

Second

5-99

P25

Oil Pressure Bypass Time

Second

0-99

30

P26

"Control On" Delay

Second

0-99

10

P27

Alt. Voltage Fault Control Delay

Second

0.0-10.0

5.0

P28

Speed Fault Control Delay

Second

0.0-10.0

5.0

P29

Engine Cooling Time

Minute

0 = Disable
1-99

P30

Engine Running Time Reset

Enter the Technician password to reset

time to 0 (zero)

Configurable Failure Input-1

Number

Only Horn Temporary

Only Horn Permanent 0 / 1 / 2 / 3

Engine Stop

P31

P32

P33

P34

Contactor releaser

Configurable Failure Input-2

Number

Only Horn Temporary

Only Horn Permanent 0 / 1 / 2 / 3

Engine Stop

Contactor releaser

Configurable Failure Input-3

Number

Only Horn Temporary

Only Horn Permanent 0 / 1 / 2 / 3

Engine Stop

Contactor releaser

Configurable Failure Inputs

Observation Function

0-Continuously Observed Failure

1-Failure Observed While Engine Running

P34. 0

Configurable Input-1

0/1

P34. 1

Configurable Input-2

0/1

P34. 2

Configurable Input-3

0/1

15

Prg
No.

P35

P36

Definition of parameter

Unit

Configurable Output 1

Number

Alarm Output

Lower /
Upper Limit

Default

0/1/2/3

Engine Running

Load Transfer Permit

Preheating for time period (P09) prior to

operating the starter motor.

Configurable Output 2

Number

Alarm Output

Engine Running

0/1/2/3

Load Transfer Permit

Preheating for time period (P09) prior to

operating the starter motor.

P37

Operator Password
(P00..P08 and P37)

Number

0000 - 9990

0000

P38

Technician Password (P00...P38)

Number

0000 - 9990

0000

3.2 Program functions

3.2.1 Alternator Voltage
P00 Alternator voltage lower limit
P01 Alternator voltage upper limit
P27 Alternator voltage fault control delay
A fault will be reported if the alternator output voltage goes outside the window defined by the
upper and lower limits for more than the time defined as the Alternator voltage fault control
delay (P27). The fault will only occur after the engine has been running for the period defined as
the Control on delay (P26). This failure immediately stops the generating set, without cool-down
delay.

3.2.2 Alternator Frequency

P02 Speed lower limit
P03 Speed upper limit
P28 Speed fault control delay
A fault will be reported if the alternator output frequency goes outside the window defined by
the upper and lower limits for more than the time defined as the Alternator speed fault control
delay (P28). The fault will only occur after the engine has been running for the period defined as
the Control on delay (P26). This failure immediately stops the generating set, without cool-down
delay.

16

3.2.3 Battery voltage lower limit (P04)

If the battery voltage drops below the defined Battery Voltage Lower Limit, an alarm occurs.
The message Bat1 (Low battery) appears on the display.

3.2.5 Speed sensing input selection (P15)

This parameter specifies the method by which the unit monitors Alternator speed. The choice is
between alternator frequency and external magnetic pick-up. Speed is monitored so as to detect
when the engine has started. See Sections 3.2.2 Alternator Frequency, 3.2.8 Engine started
signals (P18) and 3.2.10 Engine Starting.
Where alternator frequency is used, parameter P22 should be set to the frequency that must be
achieved at start-up.
Where the magnetic pick-up is to be used, parameters P12 and P13 can be used to set the
nominal speed of and number of teeth on the wheel that actuates the magnetic pick-up.
Parameters P11 and P12 are used to compute alternator RPM or frequency. If P15 is set to 0
(alternator signal), the unit uses P11 and P12 to calculate RPM from the measured frequency of
the alternator output . If P15=1 (magnetic pick-up), the unit uses P11 and P12 to calculate
alternator output frequency from the measured RPM.

3.2.6 Stop/Fuel Solenoid selection (P16)

This parameter allows the use of either a Stop solenoid or a Fuel solenoid.
With Fuel Solenoid selected, the fuel solenoid will be energised while the engine is required and
de-energised to cut off the fuel and stop the engine.
With Stop Solenoid selected, the stop solenoid is normally de-energised and only energised to
stop the engine. The solenoid remains energised for the period defined as the Stop Magnet
Energising Time (P17).
See Section 3.2.10 Engine Starting.

3.2.7 Stop magnet energising time (P17)

This parameter sets the period for which the Stop solenoid is energised to stop the engine. It
applies only where parameter P16 is set to Stop Solenoid. See Section 3.2.6 Stop/Fuel Solenoid
selection (P16).

17

3.2.8 Engine started signals (P18)

The unit must de-energise the Start solenoid, to disconnect the starter motor, once the engine is
running. Conversely, if the engine does not start after the pre-set start time, the unit will turn off
the starter motor and try again. Hence, the unit must be able to detect when the engine has
started. Four signals are available to provide engine running information, as follows :
0

Charging generator output.

Engine speed, as selected by parameter P15 (Section 3.2.5 Speed sensing input
selection)

Alternator voltage, as selected by parameter P21 Alternator Voltage Limit for

Crank Disconnection

Oil pressure the oil pressure switch should open when the oil pressure is sufficient.

Any or all of these signals can be selected for use. It is advisable to select at least two of them
preferably 1 Engine speed, via magnetic pick-up, and either 0 Charging generator or 2
Alternator.
See Section 3.2.10 Engine Starting. If any of the selected signals appears, the unit assumes that
the engine has started.

3.2.9 Battery Voltage

Battery Voltage Weak Limit (P19)
Battery Voltage Weak Control Time (P20):
If the battery voltage drops below the level specified by the Battery Voltage Weak Limit
parameter for more than the Battery Voltage Weak Control Time during engine cranking, an
alarm occurs. The message bAT2 (Weak Battery) is displayed on the LED display. Use the Reset
button to clear the alarm indication..

3.2.10 Engine Starting

Starting attempt duration(P24)
Number of starting attempts (P23)
When the unit receives an Engine Start command from the front panel or via the remote start
input, the starting sequence commences.
If the preheating output has been configured (see section 3.2.11 Configurable relay outputs), the
display will show the HEAT message for the time period set by P09.
The unit energises the start solenoid to drive the starter motor and energises the Fuel solenoid
(if selected see Section 3.2.6 Stop/Fuel Solenoid selection (P16)) to provide fuel for the engine.

18

If the unit detects that the engine has started, it de-energises the starter motor. Engine start
signals are defined by parameter P18 see Section 3.2.8 Engine started signals (P18)
Parameter P24 Starting attempt duration defines the maximum period for which drive will be
applied to the starter motor. If the unit does not detect engine starting within this period, it cuts
off the drive to the starter motor and de-energises the fuel solenoid, if selected. It then makes a
new attempt after a delay equal to twice the defined Starting attempt duration.
Parameter P23 Number of starting attempts defines the number of unsuccessful tries that the
unit will make before abandoning the attempts. If all these attempts fail, further operations are
locked out and a Start Failure indication is displayed. The unit remains locked until the Reset
reset button has been pressed.

3.2.12 Oil pressure bypass time (P25)

This sets the delay before a Low Oil Pressure warning will be generated. The Low Oil Pressure
fault indicator will light if the oil pressure switch contact remains closed, while the engine is
running, for longer than the period defined by this parameter.

3.2.13 Control on delay (P26)

During the initial period after the engine has been started, there can be fluctuations in engine
speed and alternator output that could generate spurious fault indications. Parameter P26
defines a period during which any fault indications, except High Temperature, will be ignored by
the unit. The period begins when the unit has detected engine starting and has cut off the drive
to the starter motor.

3.2.14 Engine cooling time (P29)

When operating under heavy load, the engine can get very hot and is only prevented from
overheating by circulating coolant. If the engine is stopped abruptly under these conditions, it
can overheat as the coolant flow is cut off. Where the unit controls the load, via one of the
configurable outputs, it can ensure that the engine continues to run after the load has been
removed. Parameter P29 Engine cooling time defines the duration of this cooling-off period.

3.2.15 Spare Inputs 1-2-3 (P31, P32, P33)

A contact closure to 0V on any of these inputs causes the horn to sound for the period
programmed by (P08) and lights the appropriate indicator on the panel. The unit can be
programmed to respond in one of three ways:
0

Indication is unlatched the LED flashes only while the input is 0V. This indication is
inhibited if any other alarm condition is present.

Indication is latched. The LED flashes while the horn is sounding and then stays on until the
Reset button is pressed.

19

This is the same as 1 but, in addition, the engine is stopped.

Contactor releaser. It is valid only if the load transfer permit is selected in configuration
outputs 1 and 2.

3.2.16 Configurable relay outputs 1-2 (P35, P36)

When active, these outputs provide up to 5A at the battery voltage (12V or 24V). Each can be
programmed as follows:
0

Alarm output. Active when any fault is reported. Can be used for either audible or visual
alert.

Engine running. Active while the engine is running.

Load transfer permitted. This output is active while the alternator output voltage is between
the upper and lower limit defined by parameters P00 and P01. This output can be use to
control a contactor that transfers the load to the alternator once the alternator set is up and
running.

Preheat function. On starting the generator this output is active for time period defined in
Preheat Time (P09) prior to running the starter motor.

3.2.17 Maintenance Indication

P06 Periodic Maintenance Hour Set Value
P07 Periodic Maintenance Hour Reset
To ensure reliability, the engine must be serviced at regular intervals. The unit can be set to
indicate when a service is due. Set P06 to the number of running hours between services. Use
P07 to reset the hours counter at each service. When the engine has run for the defined number
of hours, the alarm LED will flash and, when the alarm display option is selected, the display will
read the error message bAEr.

3.2.18 Operator password (P37)

Use this option to change the Operator password. This password allows access to program
parameters P00 to P08 and P37.

3.2.19 Technician Password (P38)

Use this option to change the Technician password. It allows access to all the program
parameters (P00 to P38).

20

Section 4 Commissioning
Warning: Beware of the high voltages connected to this unit.
1.

Check that the unit is correctly wired and that the wiring is of a standard and rating
compatible with the system.

2.

Check that the correct fuses are fitted.

3.

Program the unit as detailed in Section 3 Programming.

4.

Take temporary steps to prevent the engine from starting for example, disable the fuel
solenoid.

5.

After a visual inspection to ensure it is safe to proceed, connect the battery supply.

6.

Press the Power On button.

7.

Press the Engine Start button.

8.

Check that the engine start sequence commences. The starter motor should run for the
programmed period (P24) for the pre-set (P23) number of times.

9.

Check that the Failed to Start LED flashes.

10. Press the Power Off button.

11. Restore the engine to operational state (reconnect the fuel solenoid).
12. Press the Power On button.
13. Press the Engine Start button.
14. Check the start sequence, as follows:
the starter motor runs
the engine starts
the starter motor disengages once the engine is running.
If not, check that the engine is fully operational (fuel available etc.) and check the
wiring to the unit. Check the programming parameters.
15. Check that the engine runs up to its operating speed. If not and an alarm is present, check
that the alarm is valid and then check the input wiring.
16. Press the Engine Stop button. The engine should stop. Allow time for the engine to come
to rest.
17. Operate the remote Start switch (if fitted) and check that the engine starts.

21

Section 5 Operation

5.1 Controls and Indicators

1
2
3
4

9
13
10
15

14

12
1.

11

16

17

Four-digit, seven-segment LED display. This displays the selected parameter from the list
alongside. Use the button to select which parameter is to be displayed, as indicated by the

adjacent LEDs. The

button selects the parameters in sequence, as follows. Note
that line voltage readings are prefixed by L while phase-neutral readings are
prefixed by n.

Alternator voltage L1-L2, prefix L

Alternator voltage L1-N, prefix n

Alternator voltage L2-L3, prefix L

Alternator voltage L2-N, prefix n

Alternator voltage L3-L1, prefix L

Alternator voltage L3-N, prefix n

22

Alternator frequency (Hz)

Alternator RPM, as measured by alternator frequency or magnetic pick-up, as selected

by program parameters P15

Battery voltage VBAT

Engine running time in hours since last reset via program parameter P30. This is a sixdigit number. The first three (high) digits are shown in the first display prefixed H
and the second (low) in the second display prefixed L.

The Alarm LED will flash continually if the unit detects any fault. When the Display
Select button is pressed so as to select this option, the display will show the cause of
the fault indication. If more than one error condition is present, repeated pressing of the

button will show each in turn. Possible error messages are:

EStP Emergency Stop
bAT1 Low Battery Voltage
bAT2 Weak Battery Alarm
Fault indicators LEDs flash continually in the event of a fault.
2

Failed to Start. Flashes if the engine fails to start after the programmed number of attempts.
The unit must be reset (by pressing the Reset button) before a further attempt is
made.

3.

Over Temperature. Engine temperature is excessive, according to signal from the high
temperature thermostatic switch on the engine.

4.

Low Oil Pressure according to signal from oil pressure switch.

5.

Over/Under engine/alternator speed, according to alternator output frequency or a magnetic

pick-up, as programmed by parameter P15.

6.

Alternator voltage failure. Lights if the alternator output goes persistently outside
programmed acceptable voltage levels, as programmed via parameters P00 and P01.

7.

Charge generator fails.

8.

Spare inputs 1, 2 and 3. These show the states of the Spare inputs on pins 23-25. The
indications may be either latched or momentary.

23

Control functions:
9.

Green LED lights to indicate that alternator output is available and within the parameters set
by P00 and P01.

10. Green LED lights to indicate that engine is running, as indicated by the signals selected by
program parameter P18.
11. Engine Start button. Starts the engine. A green LED in the corner shows that the button has
been pressed.
12. Engine Stop button. Stops the engine. A red LED in the corner shows that the button has
been pressed.
13. Prog/Test. Lights all the LEDs on the panel so that you can see if any are not working.
Holding the button pressed for ten seconds puts the unit into Programming mode.
14. Up/Reset. Restores unit operation after it has latched in a fault condition. The Increment (up
arrow) function is used in Programming mode as detailed in Section 3 Programming.
15 Down/Silence Alarm. Silences the audible alarm. The Decrement (down arrow) button is
used in Programming mode as detailed in Section 3 Programming.
16. Power On. Turns on the unit. A green LED in the corner of the button shows that the unit
is on.
17. Power Off. Turns off the unit and stops the engine if it is running. In the Off state the unit
consumes no current from the battery.

5.2 Starting the Engine

1.

Press the Power on button.

2.

Press the Engine start button on the panel or the remote Start button. The engine should
start. The sequence is as follows:

The starter motor runs

The engine starts

Once the engine is running,

The starter motor disengages.

The green engine and alternator LEDs (9) and (10) light.

The alarm indicators remain off.

5.3 Stopping the Engine

Press the Engine stop button. The engine will stop and all indicators on the unit will go off.

24

Section 6 Fault Finding

6.1 General
Warning: Beware of the high voltages connected to this unit.
Indicators on the central section of the panel will flash if a fault is detected. See Section 3. Fault
conditions latch so that further operation is prevented. If a fault is indicated, proceed as follows:
1.

Find and fix the fault.

2.

Press the Reset button to enable a restart.

3.

Press the Engine Start button.

In addition to the indicators on the centre panel, the Alarm LED will flash in the event of a fault.
To discover the fault being reported by the Alarm LED, press repeatedly until the Alarm option
has been selected. The display will indicate the fault condition, as follows:

6.2 Fault indications

6.2.1 Low Oil Pressure LED
This LED flashes if the Oil Pressure Switch on the engine indicates low oil pressure while the
engine is running. To obtain this indication, the engine must have been running for at least the
period specified by the Oil Pressure Bypass Time parameter P25. If this fault occurs, the unit will
stop the engine without any cool-down period.

6.2.2 High Temperature LED

This LED flashes if the thermostatic switch on the engine indicates high temperature, while the
engine is running. If this fault occurs, the unit will stop the engine without any cool-down
period.

6.2.3 Start Failure LED

This LED flashes if the engine has not started after the programmed number of attempts (P23).
The unit must be reset, by pressing the Reset button, before a fresh attempt can be made.

6.2.4 Charge generator Failure LED

This LED flashes and the horn sounds if the output from the battery Charge generator fails after
the engine has started. The fault will not be indicated if it occurs within the period defined by
the Control On Delay parameter P26 after the engine has started.
This failure will not shut down the engine.

25

6.2.5 Low/High Speed LED

This LED flashes if the alternator speed goes outside the values defined by the Speed Lower
Limit (P02) and Speed Higher Limit (P03) parameters. For a fault to be indicated, the speed must
be outside these limits for longer than the period defined by the Speed Fault Control Delay
parameter P28.
Alternator speed is measured either by measuring alternator output frequency or by monitoring
an external magnetic pick-up, as selected by program parameter P15.
This failure immediately stops the generating set, without any cool-down period.

6.2.6 Alternator Voltage Failure LED

This LED flashes if the alternator output fails to reach the value specified by the Alternator
Voltage Lower Limit parameter P01 within the period defined by the Control On Delay
parameter P26.
This failure immediately stops the generating set, without any cool-down period.

6.2.7 EStP Emergency Stop

The remote Emergency Stop button has been pressed and has shut down the engine. Press
Reset to remove the indication and restore unit operation.

6.2.8 bAT1 - Low Battery Voltage message

This message appears if, while the engine is running, the battery voltage falls below the value
specified by the Battery voltage lower limit parameter P04. The unit measures battery voltage at
the rear terminals. Depending on the size and length of the cable to the battery, this may be
somewhat less than the voltage as measured at the battery.

6.2.9 bAT2 - Weak Battery Alarm message

This message appears if, during engine cranking, the battery voltage drops below the value
specified by the Battery Voltage Weak Limit parameter P19 for longer than the period specified
by the Battery Voltage Weak Control Time parameter P20. The message is reset by Reset
button.

26

6.2.10 SErV Routine Maintenance Due

The interval (hours run) between routine maintenance, set by program parameter P06, has
expired. On completion of the required engine maintenance, reset the maintenance timer using
program parameter P08.

Table 6.1 Fault finding

Symptom

Possible remedy

Unit is inoperative

Check the battery and wiring to the unit. Check the DC supply.
Check the DC fuse.

Low oil pressure fault after

engine has fired.

Check engine oil pressure. Check oil pressure switch and

wiring. Check that oil pressure switch is of the normally
closed type (opens on low oil pressure).

High engine temperature

fault after engine has fired.

Check engine temperature and cooling. Check switch and

wiring. Check that temperature switch is of normally open type
(closes on high temperature).

Failed to Start fault. Engine

failed to start after pre-set
number of attempts.

Check fuel solenoid and wiring, fuel and battery. Reset the unit
and restart the engine. Check for battery + output at pin 4, Fuel
Solenoid. Check the signals that the unit is using to determine
if the engine has started. Refer to engine manual.

Starter motor inoperative.

Check wiring to starter solenoid. Check battery supply. Check

battery supply is present on the Start output pin 3 of the unit.

27

Section 7 Specification
Inputs
DC Supply

12V (8 to 16V) or 24V (16 to 32V) DC, Switch Selectable

Operating Current

350mA maximum, 12V range

400mA maximum, 24V range

Cranking Dropout

Battery voltage can be 0V DC for max. 100 ms during

cranking (battery voltage should be at least nominal
voltage before cranking)

Generator Voltage

35 to 300V AC L-N, 10 to 110Hz

4 Wire connection for three phase, 2 wire connection for
single phase.Neutral and battery negative must
be grounded.

Magnetic Pickup

3 to 35 Volts peak, 35Hz to 10kHz

Contact Sensing

Emergency Stop (NC)

Oil Pressure switch (NC)
Temperature Switch (NO)
Remote Start/Stop input (NO)
Configurable input 1 (NO)
Configurable input 2 (NO)
Configurable input 3 (NO)

Outputs
Relay Contacts

Start relay (12 Amp DC at 12/24V)

Fuel relay (12 Amp DC at 12/24V)
Horn relay (5 Amp DC at 12/24V)
Configurable relay 1 (5 Amp DC at 12/24V)
Configurable relay 2 (5 Amp DC at 12/24V)

Charge Generator

Excitation current 200mA, maximum 3 Watts.

Display
Display Type

4 digits, 7 segment LED, high visibility

Displayed Parameters

Generator Voltage, Line to Neutral

Generator Voltage, Line to Line
Generator Frequency
Engine RPM

28

Battery Voltage
Engine Running Time
Programming Parameters
Failure Annunciators

Failed to start
Over Temperature
Low Oil Pressure
Over/Under Speed
Voltage Failure
Charging Fail
Configurable Input 1
Configurable Input 2
Configurable Input 3

Status Annunciators

Engine Stop
Engine Start
Engine Running
Generator Ready
Program Mode
Power On

Measurement Accuracy
Battery Voltage
Generator Voltage
Generator Frequency
Engine Speed

1% of full scale, 0.1V resolution, 0 - 32V DC

1% of full scale, 1V resolution, 35 - 300V AC
0.25% of full scale, 0.1Hz resolution, 10-110 Hz alternator
0.25% of full scale, 35-10,000Hz magnetic pickup

Environmental
Operating Temperature
Storage Temperature
Humidity
Environmental Rating
Mode of operation

-25C to +70C (-13F to +158F)

-40C to +85C (-40F to +185F)
<93% RH, non condensing
Standard, Indoors, Altitude less than 2000m
Continuous

Standards
EMC
Electrical Safety
Installation Category
Pollution Degree

BS EN 50081-2, BS EN 50082-2
EN 61010-1
II
II

Mechanical
Enclosure
Panel Thickness
Protection Class
Weight

DIN 43700 Style housing, 96mm x 96mm Bezel, 92mm

7mm (0.28 in) Maximum
IP54 front panel, IP20 rear panel
Approximately 0.7 Kg

29

Section 8 PC Interface
8.1 Introduction
The PC Interface provides communication between a PC and a GEN-AUTO unit. All parameters
can be viewed or changed, and changes are password protected.
The following items are required to establish communications:

9 pin D connector/FCC68(4 pin) connection lead with 2 meters cable

Communication software (available on CD or the web site)

Technical Specifications

RS232 non-isolated serial interface

9600 Baud Rate

8 data bits, No Parity,1 Stop Bit

Maximum allowable cable length is 10 meters

Minimum system requirements

Processor

486 66 MHz

Operating Systems

Windows95/98, Windows NT

Ram

16 Mbyte

Monitor

14 SVGA (640x480 resolution)

Hard Disk Free Space

1 Mbyte

Disk Drive

CD-ROM

Communication

An RS232 communication port is needed to communicate with the Unit

8.2 Installation
1.

If downloading from the Internet, follow the instructions provided.

2.

If installing from CD-ROM, Insert the software CD into drive on the PC

3.

Double click on My Computer.

4.

Then double click on CD-ROM drive.

5.

There will be a short delay while the CD-ROM is accessed, then the disk contents will
be displayed.

6.

Double click on Install.exe.

7.

The software will be installed automatically on to your PC in its own folder(directory). It will
also create START MENU items.

30

8.2.1 To run the software

1. Press the START icon.
2. Then select Programs\GEN-AUTO (XM)\GEN-AUTO (XM).

3. Then click on GEN-AUTO (XM).

8.3 Description
The application has three windows:

Observation

Operator Parameters

Technician Parameters .

31

8.3.1 Observation Window

This window shows:

Measurement Values:

Generator Voltage, Generator Frequency

Engine Speed

Battery Voltage

Running Time

Maintenance Hour

32

Failures:

Start Failure

Low/High Speed

Low Oil Pressure

Generator Voltage Failure

Charge Generator Failure

High Temperature

Spare 1-2-3

Battery Failure, Weak Battery

Emergency Stop

Routine Maintenance

Outputs
Start Relay
Solenoid Relay
Configurable Relay Output1
Configurable Relay Output2
Horn Relay

8.3.2 Operator Parameters Window

This windows shows the parameters that can be changed by the operator, who must enter the
Operator Password stored in the Unit.

8.3.3 Technician Parameters Window

This window shows all parameters. Access is obtained by entering the Technician Password
stored in the unit.

33

8.4 Main Menu

8.4.1 File
This menu allows the user to save and retrieve configuration files to and from the disk.
Parameters can also be sent to a printer.

Open

Use this option to load parameters into the application from a

configuration file on disk.

Save

Use this option to save parameters into a configuration file on disk.

Print

This option sends the configuration parameters to a printer.

Printer Setup

This option allows you to select the printer and to change the
printer configuration.

Exit

Use this option to exit the application.

8.4.2 Programming
This menu is active while the Operator or Technician Parameters Window is open. It allows you
to transfer parameters to and from the unit.

Download:

Use this option to download parameters from PC to the unit.

Upload:

Use this option to upload parameters from the unit to the PC.

34

8.4.3 Settings
Communication Port Settings: Use this option to view and set the PC port configuration.

35

8.5 Operation
8.5.1 Accessing Operator Parameters Window
1. Click Operator Parameter tab.
2. Enter the Operator Parameter password.

If the password is correct, operator parameters can be viewed.

36

8.5.2 Accessing Technician Parameters Window

1.

Click Technician Parameter tab

2.

Enter the Technician Parameter password

If password is correct, all parameters can be viewed.

8.5.3 Loading a Configuration File From Disc

1.

Click Open in File menu

2.

From the Open dialog, choose a configuration file which includes operator
or technician parameters.

3.

Press Open to confirm your selection. The parameters will be loaded into the PC window
from the file.

37

8.5.4 Saving Parameters to a Configuration File

1.

Click Save in File menu.

2.

Choose a location for the file and enter the file name.

3.

Press Save to save the file. All parameters will be saved to the file.

8.5.5 Uploading Parameters from the Unit

If user is in operator parameters window, only operator parameters will be viewed. If user is in
Technician Parameters Window, all parameters will be viewed.
Select Upload from Programme menu
During loading, the cursor takes shape of sand-glass. Please wait until cursor returns to its
former shape.

8.5.6 Downloading Parameters to the unit

If user is in Operator Parameters window only operator parameters will be loaded.
If user is in Technician Parameters Window all parameters will be loaded.
Select Download from Programme menu
During loading, the cursor takes shape of hour-glass. Please wait until cursor returns to its
former shape.

38

Index
Alarm LED, 28

Horn, 14, 15

Alarm output, 25

Indicators, 27

Alternator current, 28

LED display, 27

Alternator frequency, 28

Load transfer permitted, 25

Alternator power output, 28, 34

Magnatic Pickup 13, 15, 22

Alternator voltage, 21, 27, 32, 34

Oil pressure, 14, 16, 24, 28, 31, 33

bAT1, 28 ,32

Operating temperature, 35

bAT2, 28 ,32

Over current, 22, 28, 33

Battery supply, 34

Panel thickness, 7

Battery voltage, 22, 34, 28

Password, 18, 25

Baud rate, 36

PC Interface, 36

CD-ROM, 37

Periodic maintenance, 25, 33

Charge generator, 14, 16, 17, 29, 32

Power off button, 29

Configurable outputs, 14, 15, 25

Power on button, 29

Connections, 9

Relay outputs, 34

Control on delay, 24

Remote start, 16

Controls, 27

Remote start/stop, 15

Current transformer, 15, 34, 19

Remote starting, 7, 15

Cut-out, 8

RS232, 36

Display, 34

Spare inputs, 15, 16, 24, 29

Downloading, 45

Speed, 21, 28, 32

Emergency stop, 15, 16

Start button, 29

Engine cooling time, 24

Start failure, 28

Engine running, 29

Start solenoid, 14, 15

Engine running time, 28

Starter motor, 30

Engine started signal, 23

Starter solenoid, 34

Engine starting, 23

Starting attempts, 23

EStP, 28

Stop button, 29

Fixing, 7

Stop solenoid, 22

Fuel solenoid, 14, 22, 23, 34

Thermostat, 16

Fuel/stop solenoid, 15

Unpacking, 7

Fuses, 13

Uploading, 45

Heat, 23

Warning, 7, 15

High temperature, 15, 16, 28, 31, 33

39

Programming Reference Sheet

Prog No
P00
P01
P02
P03
P04
P05
P06
P07
P08
P09
P10
P11
P12
P13
P14
P15
P16
P17
P18.0
P18.1
P18.2
P18.3
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P33
P34
P35
P36
P37
P38

Definition of parameter
Alternator Voltage Lower Limit
Alternator Voltage Upper Limit
Speed Lower Limit
Speed Upper Limit
Battery Voltage Lower Limit
Over Current Limit (GEN-AUTO XM Only)
Periodic Maintenance Hour Set
Periodic Maintenance Reset
Horn Duration
Preheat time
Single/Three Phase Selection
Nominal Alternator Frequency
Nominal Speed(RPM)
Number Of Flywheel Teeth
Current Transformer Ratio (GEN-AUTO XM Only)
Speed Sensing Input Selection
Stop/Fuel Solenoid Selection
Stop Magnet Energising Time
Engine Started Signal - Charge Generator
Engine Started Signal - Speed
Engine Started Signal - Alternator Voltage
Engine Started Signal - Oil Pressure
Battery Voltage Weak Limit
Battery Voltage Weak Control Time
Alternator Voltage Limit For Crank Disconnection
Speed Limit For Crank Disconnection
Number Of Starting Attempts
Starting Attempt Duration
Oil Pressure Bypass Time
"Control On" Delay
Alternator Voltage Fault Control Delay
Speed Fault Control Delay
Engine Cooling Time
Engine Running Time Reset
Configurable Failure Input - 1
Configurable Failure Input - 2
Configurable Failure Input - 3
Configurable Failure Observation Function
Configurable Relay Output 1
Configurable Relay Output 2
Operator Password (P00...P08 and P37)
Technician Password (P00...P38)

Name:

Date:

40

User Defined parameter

The Information contained in these installation instructions is for use only by installers trained to make electrical power installations and is intended
to describe the correct method of installation for this product. However, Tyco Electronics has no control over the field conditions which influence
product installation.
It is the user's responsibility to determine the suitability of the installation method in the user's field conditions. Tyco Electronics' only obligations
are those in Tyco Electronics' standard Conditions of Sale for this product and in no case will Tyco Electronics be liable for any other incidental,
indirect or consequential damages arising from the use or misuse of the products. Crompton is a trade mark.

Tyco Electronics UK Limited

Crompton Instruments
Freebournes Road, Witham, Essex, CM8 3AH, UK
Tel: +44 1376 509 509 Fax: +44 1376 509 511

http://energy.tycoelectronics.com