Industrial Generator Sets

Models:

400--800RZW (Waukesha Powered)

Controller:

Decision-Maker�550

TP-6155 9/06b

Wiring Diagrams

Product Identification Information

Product identification numbers determine service parts.Record the product identification numbers in the spacesbelow immediately after unpacking the products so thatthe numbers are readily available for future reference.Record field-installed kit numbers after installing thekits.

Generator Set Identification Numbers

Record the product identification numbers from thegenerator set nameplate(s).

Model Designation

Specification Number

Serial Number

Accessory Number Accessory Description

Controller Identification

Record the controller description from the generator setoperation manual, spec sheet, or sales invoice.

Controller Description

Engine Identification

Record the product identification information from theengine nameplate.

Manufacturer

Model Designation

Serial Number

TP-6155 9/06 3Introduction

Introduction

This manual provides wiring diagrams for the400--800RZW Waukesha engine-powered generatorsets equipped with the following controller:

� Decision-Maker�550

Information in this publication represents data availableat the time of print. Kohler Co. reserves the right tochange this publication and the products representedwithout notice and without any obligation or liabilitywhatsoever.

Service Assistance

For professional advice on generator powerrequirements and conscientious service, please contactyour nearest Kohler distributor or dealer.

� Consult the Yellow Pages under the heading

Generators—Electric

� Visit the Kohler Power Systems website at

KohlerPowerSystems.com

� Look at the labels and stickers on your Kohler product

or review the appropriate literature or documents

included with the product

� Call toll free in the US and Canada 1-800-544-2444

� Outside the US andCanada, call the nearest regional

office

Headquarters Europe, Middle East, Africa

(EMEA)

Kohler Power Systems

ZI Senia 122

12, rue des Hauts Flouviers

94517 Thiais Cedex

France

Phone: (33) 1 41 735500

Fax: (33) 1 41 735501

Asia Pacific

Power Systems Asia Pacific Regional Office

Singapore, Republic of Singapore

Phone: (65) 6264-6422

Fax: (65) 6264-6455

China

North China Regional Office, Beijing

Phone: (86) 10 6518 7950

(86) 10 6518 7951

(86) 10 6518 7952

Fax: (86) 10 6518 7955

East China Regional Office, Shanghai

Phone: (86) 21 6288 0500

Fax: (86) 21 6288 0550

India, Bangladesh, Sri Lanka

India Regional Office

Bangalore, India

Phone: (91) 80 3366208

(91) 80 3366231

Fax: (91) 80 3315972

Japan, Korea

North Asia Regional Office

Tokyo, Japan

Phone: (813) 3440-4515

Fax: (813) 3440-2727

Latin America

Latin America Regional Office

Lakeland, Florida, USA

Phone: (863) 619-7568

Fax: (863) 701-7131

TP-6155 9/064 Wiring Diagrams

Wiring Diagrams

Use the Wiring Diagram Cross-Reference chart todetermine the wiring diagram version number for agiven model number and spec number. Then find thatversion number and the controller type on the Controller

Wiring Diagrams Reference chart to determine thewiring diagram numbers for your unit. Refer to thegenerator set operation manual for controller typeidentification, if necessary.

Wiring Diagram Cross-Reference

Generator SetModel No. Hz

Generator SetSpec No.

Wiring DiagramVersion No.

400RZW 50/60 GM22173-GA1, 2, 3, 4 1-1

400RZW 50/60 GM22173-GA5, 6, 7, 8 1-2

600RZW 50/60 GM22193-GA1, 2, 3, 4 2-1

800RZW 50/60 GM22207-GA1, 2, 3, 4 2-1

400RZW Controller Wiring Diagrams Reference

Controller Description Version 1-1 Page Version 1-2 Page

Decision-Maker�550

Point-to-Point Wiring Diagram

Sheet 1 GM22291A-B 14 GM47120A- 22

Sheet 2 GM22291B-B 15 GM47120B- 23

Schematic Diagram

Sheet 1 ADV-6693A-B 6 ADV-7123A- 10

Sheet 2 ADV-6693B-B 7 ADV-7123B- 11

Accessory Connections

Sheet 1 GM16088A-F 12 GM28632B-G 18

Sheet 2 GM16088B-F 13 GM28632C-G 19

Sheet 3 — GM28632D-G 20

Sheet 4 — GM28632E-G 21

Generator Reconnections ADV-5875C-G 5 ADV-5875C-G 5

Note: Version 1-2 represents governor controller change.

600/800RZW Controller Wiring Diagrams Reference

Controller Description Version 2-1 Page

Decision-Maker�550

Point-to-Point Wiring Diagram

Sheet 1 GM22292A-C 16

Sheet 2 GM22292B-C 17

Schematic Diagram

Sheet 1 ADV-6694A-C 8

Sheet 2 ADV-6694B-C 9

Accessory Connections

Sheet 1 GM28632B-G 18

Sheet 2 GM28632C-G 19

Sheet 3 GM28632D-G 20

Sheet 4 GM28632E-G 21

Generator Reconnections ADV-5875C-G 5

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� 2002, 2005, 2006 by Kohler Co. All rights reserved.

TP-6155 9/06b

KOHLER CO. Kohler, Wisconsin 53044Phone 920-565-3381, Fax 920-459-1646For the nearest sales/service outlet in theUS and Canada, phone 1-800-544-2444KohlerPowerSystems.com

Kohler Power SystemsAsia Pacific Headquarters7 Jurong Pier RoadSingapore 619159Phone (65) 6264-6422, Fax (65) 6264-6455