C O N T R O L S

EMCP II+
ELECTRONIC MODULAR
CONTROL PANEL
The Caterpillar Electronic Modular Control Panel
(EMCP II+) places full-featured power metering,
protective relaying, simultaneous engine and
generator parameter viewing, and expanded AC
metering at your fingertips. Engine and generator
control, diagnostics, and operating information is
accessible via the control panel keypads or a
remote, personal computer. The advanced
microprocessor-based EMCP II+ combined with
the Caterpillar Customer Communication Module
(CCM) and Relay Driver Module (RDM) give you
the flexibility to remotely manage the specific
needs of your total system.
FEATURES
UL 508A ● Load demand relay opens and closes based
● UL 508A Listed on generator kW output, programmable to
activate at an adjustable setpoint.
RELIABLE, DURABLE, AND ACCURATE ● Simultaneous viewing of engine and
● Environmentally sealed, die-cast aluminum generator parameters with toggle between
housing isolates and protects electrical auto parameter scrolling and individual
components against failure caused by parameter display.
moisture and dirt contamination. ● Simultaneous viewing of all AC L-L voltages,
● Rigorous vibration testing ensures panel all AC L-N voltages, or all AC line currents.
dependability. ● Expanded remote customer communication
● Maintains metering accuracy from –40° C module supported by an open RS-232C
(–40° F) to 70° C (158° F) architecture — easily interfaces with existing
● Electrical noise immunity of 100 volts/meter plant systems and equipment.
● True RMS sensing ensures AC metering
KEYPAD PROGRAMMABILITY
accuracy is 0.5% for AC volts, amps, and
● User-friendly, convenient, customer
power parameters.
programmability directs the customer to
● The digital, 32 bit microprocessor-based
logical parameter groups — AC metering,
system eliminates the need for a number of protective relaying, engine monitoring —
switches, meters, transducers, relays, and for quick keypad access.
sending units. That means less wiring and
● Programmable, spare control relay with
fewer opportunities for mechanical failures.
remote control capability provides additional
ADVANCED FEATURES THAT SUPPORT flexibility for customer control function.
YOUR BUSINESS NEEDS ● 10 LED alarms, five programmable for
● Full-featured power metering, accessible with customer inputs, provide more information
one keypad touch, allows you to view at a glance.
generator set kW, kVA, kVAR, kW hours, kVAR
hours, percent rated power, and power factor. REGULATORY APPROVALS
● U.S. sourced control panels
● Customer programmable protective relaying,
available as alarm and shutdown, protects meet CSA requirements.
against undervoltage, overvoltage, ● Larne sourced control panels
underfrequency, overfrequency, overcurrent, meet CE requirements.
and reverse power.
LEHX9590-05

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STANDARD/OPTIONAL FEATURES
EMCP II+ PROTECTIVE RELAYING
STANDARD FEATURES Setpoint programming
Digital (LCD) Indication AC voltage — 3 phase (L-L & L-N)
provides the flexibility to
AC amps (3 phase & total) custom configure protective
kW (total & per phase) relays in a manner which
kVA (total) best suits a customer’s
kVAR (total) application. The customer
kWhr (total)
kVARhr (total)
determines the response
PF (average total & per phase) type and timing of
Percent of rated (total) protective relay functions:
Frequency ● Alarm enable/disable
DC voltage
Coolant temperature ● Alarm threshold level
Oil pressure ● Alarm time delay
rpm ● Shutdown enable/disable
Hours run
System diagnostic ● Shutdown threshold level
L/R exhaust manifold temperature (3500 only) ● Shutdown time delay
Oil temperature (except 3300/3406)
Setpoints are factory set for
Controls Auto start/stop
Purge cycle (gas packages only)
optimum performance and
Staged shutdown (gas packages only) generator protection.
Emergency stop Setpoint values may be
Lamp test viewed with the engine
Cycle crank running or stopped.
Voltage control
Cooldown timer
Phase selector switch
Load demand relay
Spare relay — programmable
Enclosure NEMA 12, IP44
Vandal door (Not available on 3406, 3456)
Indicating Lights with Low oil pressure
Shutdown High coolant temperature
Overspeed
Overcrank
Emergency stop
High inlet air temp (gas TA engines only)
Detonation sensitive timing (gas LE engines only)
Fault shutdown
Fault alarms
3 spare lights/4 spare inputs,
customer programmable (shutdown
or alarm) to spare alarm or fault LEDs
Protective Relaying Programmable relays:
Over/undervoltage
Reverse power relay
Over/underfrequency
Overcurrent
OPTIONAL FEATURES
Protective Devices Low coolant level (standard on some packages)
Miscellaneous Controls Electronic governor:
Isochronous speed control
Load share
Alarm modules — local (with horn and silence switch)
Frequency control
Common alarm/shutdown volt free contact
Generator running volt free contact
Ether starting aid (not available on gas packages)
Remote annunciator modules
Computer communications data link
Panel lights

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EXPANDED SYSTEM FLEXIBILITY

ALARMS AND ANNUNCIATORS The combined power of the EMCP II+ and CCM
EMCP II+ control panel includes two slots for now enable you to control the packaged
optional alarm or synchronizing modules. Each generator set and ancillary equipment. Text
alarm module contains a block of eight LEDs. editable software enables you to control the
Customers select from the following: EMCP II+ spare relay and the Relay Driver
● NFPA99/110 alarm modules Module (RDM).
● Custom alarm module RELAY DRIVER MODULE (RDM)
● Manual synchronizing module The Caterpillar RDM expands the number of
relays available to the customer. One RDM
contains nine relay outputs which can be
directly connected to ancillary equipment such
as lamps, fuel tank controls, or other devices
such as louvers. The RDM requires the use of
the CCM.

CUSTOMER INTERFACE MODULE

The Customer Interface Module (CIM) is a relay
board that provides nine contacts for custom
remote annunciation.
SYSTEM SOFTWARE
REMOTE COMMUNICATION CCM PC is a user-friendly, IBM compatible,
The Caterpillar Customer Communication windows-based program.
Module (CCM) provides a means to remotely
monitor and control single or multiple CCM PC interfaces with the CCM and EMCP II+.
packaged generator sets at a common site. Remote control ability, parameter status
By accessing the CCM from a personal computer display, diagnostic viewing/clearing options,
or other RS-232C device, each unit can be and parameter logging are among its standard
remotely started and stopped, and all engine tools. An on-line help system provides fingertip
and generator parameters can be monitored access to software questions and instructions.
on a “real time” basis. Published, open Integrated file management facility allows you
architecture enables you to connect the CCM to copy, move, delete, view, print, and rename
to an existing plant information system. documents and files from within CCM PC
without the use of DOS file names or the
Windows File Manager.
CCM PC, used in conjunction with relay driver
module, enables you to individually label and
control each RDM relay.

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EMCP II + SPECIFICATIONS
EMI Immunity
IEC 801-2, IEC 801-3, IEC 801-4, EN 5082-2
Enclosure
NEMA 12, IP44
Humidity
0 to 100% relative humidity
Impervious to:
salt spray, fuel, oil and oil additives, coolant,
spray cleaners, chlorinated solvents, hydrogen sulfide
and methane gas, and dust
Input and output protection
all inputs and outputs are protected against short circuits to (+/-) battery
Input voltage range (24 VDC nominal)
14 to 45 VDC
Power requirements
10 watts (with generator set in standby mode — no alarms)
Reverse polarity protected
Shock, withstands 20 g
Temperature range
Operating: –40° C to 70° C (–40° F to 158° F)
Storage: –55° C to 85° C (–67° F to 185° F)
Vibration
withstands 2.0 g @ 18 to 500 Hz

EMCP II+ SYSTEM HIERARCHY DRAWING

Serial Data Link

RDM

EMCP II+
Serial Data Link CCM

Remote CIM Alarm Cat Data Link

Annunciator Module PC or other
(maximum of 3 modules) RS-232C
device

www.CAT-ElectricPower.com

© 2003 Caterpillar
All rights reserved.
U.S./European sourced Printed in U.S.A.

LEHX9590-05 (7-03) Materials and specifications are subject to change without notice.
Supersedes LEHX9590-04 The International System of Units (SI) is used in this publication.