13IntroductionTP-6200 10/12
Introduction
This manual provides operation instructions for 20 kW
and larger generator sets equipped with the following
controller:
DDecisionr550, Software (Code) Version 2.10 or
higher
Version2.10 refers to the controller application software.
To determine the generator set controller software
version, go to Menu 20—Factory Setup and scrolldown
to Code Version. The code version is the controller
software version.
Wiringdiagram manuals are available separately. Refer
to the engine operation manual forgenerator set engine
scheduled maintenance information.
Information in this publication represents data available
at the time of print. Kohler Co. reserves the right to
change this publication and the products represented
without notice and without any obligation or liability
whatsoever.
Readthis manual and carefully follow all procedures and
safety precautions to ensure proper equipment
operationand to avoid bodily injury. Read and follow the
Safety Precautions and Instructions section at the
beginning of this manual. Keep this manual with the
equipment for future reference.
The equipment service requirementsare very important
to safe and efficient operation. Inspect the parts often
andperform required service at the prescribed intervals.
Maintenance work must be performed by appropriately
skilled and suitably trained maintenance personnel
familiar with generator set operation and service.
The disk supplied with this generator set is a backup
copy of the generator set personality program
containing data specific to the engine and alternator.
The engine and alternator data was preprogrammed in
thecontroller at the factory and no further use of the disk
should be necessary. Typically, your authorized
distributorstores this disk for possible future use such as
controller replacement or other circumstances requiring
a backup.

Abbreviations

This publication makes use of numerous abbreviations.
Typically, the word(s) are spelled out along with the
abbreviation in parentheses when shown for the first
time in a section. Appendix A, Abbreviations, also
includes many abbreviation definitions.

List of Related Materials

Separate literature contains communication and
software information not provided in this manual.
Figure 1 lists the available literature part numbers.
Communication and Software
Manual Description Literature Part No.
550 Controller Spec Sheet G6-46
Generator Set/Controller
Wiring Diagram Manual
Multiple Part Numbers
Contact your
Distributor/Dealer
550 Communications Spec Sheet G6-50
Monitor III Converters, Connections,
and Controller Setup TT-1405
Monitor III Software Spec Sheet G6-76
Monitor III Converter,
Modbusr/Ethernet Spec Sheet G6-79
Monitor III Software Operation Manual TP-6347
ModbusrCommunications Protocol
Operation Manual TP-6113
Setup and Application Manual TP-6140
Service Parts Controllers TP-6780
Program Loader Software Installation TT-1285
SiteTechtSoftwareOperation Manual TP-6701
Remote Serial Annunciator (RSA) TT-1377
Remote Serial Annunciator (RSA II) TT-1485
Controller Service Replacement TT-1310
Figure 1 Related Literature
Modbusris a registered trademark of Schneider Electric.