C O N T R O L S

EMCP II
ELECTRONIC MODULAR
CONTROL PANEL

The Electronic Modular Control Panel (EMCP II)

combines the engine control and AC metering
into one, user-friendly control. The displays,
along with enhanced self-diagnostic capabilities,
take the guesswork out of generator set
monitoring. Representative graphics and LCD
readouts make engine status and AC metering
easy to understand, even for untrained
personnel. The advanced microprocessor-based
EMCP II combined with the Caterpillar Customer
Communication Module (CCM) give you the
flexibility to remotely monitor and control your
Caterpillar packaged generator set.

FEATURES
UL 508A ADVANCED CONTROLS
● UL 508A Listed ● Cycle cranking, with adjustable crank/rest
period of 1 – 60 seconds
RELIABLE, DURABLE, AND ACCURATE
● Three spare inputs/one spare output activate
● Environmentally sealed, die-cast aluminum
at customer programmed setpoints
housing isolates and protects electrical
● Expanded remote communication module
components against failure caused by
moisture and dirt contamination. supported by an open RS-232C architecture —
easily interfaced with existing plant systems
● Rigorous vibration testing ensures panel
and equipment
dependability.
● Maintains metering accuracy from -40° C SIMPLIFIED SERVICING
(-40° F) to 70° C (158° F) ● All high voltages have been removed from the
● Electrical noise immunity of 100 volts/meter generator set status control module for safer
● True RMS sensing ensures AC metering panel servicing.
accuracy is 0.5% for AC volts and amps. ● Self-diagnostic capability pinpoints operational
● The digital, microprocessor-based system problems in need of attention.
eliminates the need for a number of switches, ● Using an SAE format, the panel zeros in on the
meters, and sending units. That means less affected system and identifies the component
wiring and fewer opportunities for mechanical responsible for the failure.
failures. ● Key-pad programmable setpoints

FULL-FEATURED, EASY-TO-READ METERING REGULATORY APPROVALS

● LCD digital readout for: engine oil pressure, ● U.S. sourced control panels meet
coolant temperature, engine rpm, system CSA requirements.
DC volts, engine running hours, generator ● Larne sourced control panels meet
AC volts, generator AC amps, and CE requirements.
generator frequency
● Eight LED alarms, two programmable to
general fault shutdown or general fault alarm

W H E R E T H E W O R L D T U R N S F O R P O W E R
C O N T R O L S

STANDARD/OPTIONAL FEATURES
EMCP II
STANDARD FEATURES
Digital (LCD) Indication AC voltage (L-L)
AC amps
System diagnostics
Frequency
DC voltage
Coolant temperature
Oil pressure
rpm
Hours run
Controls Auto start/stop
Purge cycle (gas packages only)
Staged shutdown (gas packages only)
Emergency stop
Lamp test
Cycle crank
Voltage control
Cooldown timer
Phase selector switch
Enclosure NEMA 1, IP22
Vandal door
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 alarm*
*3 spare inputs — customer programmable
*1 spare input — customer programmable
(gas packages only)
OPTIONAL FEATURES
Protective Devices Low coolant level (standard on some packages)
Fixed relays:
Over/undervoltage (available 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)
Manual synchronizing modules
Computer communications data link
Panel lights
Remote annunciator modules

SETPOINT PROGRAMMING PROVIDES CUSTOMER FLEXIBILITY

ENGINE/GENERATOR CONFIGURATION SPARE INPUT/OUTPUT
● Setpoints affect proper operation and ● Designed for meeting the requirements of the
serviceability of the engine and accuracy of customer or application
information shown on the display ● Three spare inputs/one spare output accessed
● Factory set for optimum performance on auxiliary terminal strip
● Twenty-four customer-programmable setpoints ● Customer Programmable
reflect changes in site condition — example: – Input active state – Input time delay
fuel solenoid type, ring gear teeth, crank – Input response: – Output trigger condition
termination speed, etc.
shutdown/alarm

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C O N T R O L S

EXPANDED SYSTEM FLEXIBILITY

ALARMS AND ANNUNCIATORS REMOTE COMMUNICATION
EMCP II Control Panel includes two slots for The Caterpillar Customer Communication
optional alarm or synchronizing modules. Each Module (CCM) provides a means to remotely
alarm module contains a block of eight LEDs. monitor and control single or multiple
Customers select from the following: packaged generator sets at a common site. By
● NFPA99/110 alarm modules accessing the CCM from a personal computer
● Custom alarm module or other RS-232C device, each unit can be
remotely started and stopped, and all engine
● Manual synchronizing module
and generator parameters can be monitored on
a ‘real time’ basis. Published, open architecture
enables you to connect the CCM to an existing
plant information system.

SYSTEM SOFTWARE
CCM PC is a user-friendly, IBM compatible,
windows-based program. CCM PC interfaces
with the CCM and the EMCP II. Remote control
ability, parameter status display, diagnostic
viewing/clearing options and parameter logging
are among its standard tools. An on-line help
system provides fingertip access to software
Customer Interface Module (CIM) is a relay questions and instructions. Integrated file
board that provides nine contacts for custom management facility allows you to copy, move,
remote annunciation. delete, view, print, and rename documents and
files from within CCM PC without the use of
DOS file names or the Windows file manager.

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C O N T R O L S

EMCP II SPECIFICATIONS
EMI Immunity
IEC 801-2, IEC 801-3, IEC 801-4, EN 5082-2
Enclosure
NEMA 1, IP22
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

EMCP II
Remote CIM Alarm
Annunciator Module CCM
(maximum of 3 modules)
Cat Data Link
PC or other
RS-232C
device

www.CAT-ElectricPower.com

© 2001 Caterpillar
All rights reserved.
U.S./European sourced Printed in U.S.A.

LEHX9589-02 (06-01) Materials and specifications are subject to change without notice.
Supersedes LEHX9589-01 The International System of Units (SI) is used in this publication.