Murphy Series A900 manual Table of Contents

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Table of Contents

 

Section 1: Introduction

 

page 1

1-1System

 

1

1-2Models

 

1

1-3Purpose

 

1

1-4Definitions

 

1

1-5How To Use This Manual

1

Section 2: Specifications

 

1

2-1Enclosure Type

 

1

2-2Power Requirements

 

1

2-3Input Ratings

 

1

2-4Output Ratings

 

1

2-5Field Wiring Connections

1

2-6Operating Temperature

 

1

Section 3: Model Identification

1

3-1Model Numbers

 

1

3-2 A901

 

2

3-3A901-2

 

5

3-4 A902

 

7

3-5A902-2

 

8

3-6 A903

 

10

3-7 A903-2

 

12

Section 4: Installation

 

14

4-1Location

 

14

4-2Wiring

 

14

4-3Crank Disconnect

 

19

4-4Pre-Operational Check-Out

19

Section 5: Operation

 

21

5-1Operator Controls

 

21

5-2Operating Modes

 

21

Section 6: Routine Maintenance and Operational Tests

21

6-1Routine Maintenance

 

21

6-2Operational Tests

 

21

Section 7: Troubleshooting and Repair

21

7-1Tools Required

 

21

7-2A900 SELECTRONIC®

Control Operation and Shutdown

21

7-3A900 SELECTRONIC®

Control Alarm Circuit Operation

23

Section 8: Service Parts

 

24

8-1Table 8-1: Replacement Components of the A900 Series Generator Controls

24

8-2Table 8-2: Replacement Components of the A900 Controls for Detroit Diesel

24

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Contents A900-9025N Revised Section Before Beginning Installation of this Murphy Product Table of Contents Operating Temperature How to use this manualPower Requirements Field Wiring Connections165 mm A901NFPA99 CAN/CSA Counts the number of cranking attempts A901-2 159 mm A902 A902-2 Provides a signal to the overspeed shutdown circuit if A903 1.2Lamp Test Pushbutton Tests the lights on the A903 module A903-2 Page Location Wiring2.5 Mounting Dimensions 3.1 A901 wiring 3.2 A902 wiring 3.3 A903 wiring Pre-operational Check-out Crank DisconnectFuel Relay Operational Tests Routine MaintenanceOperator Controls Operating Modes13.8 27.6 Circuit Input Output A900 Selectronic Control Alarm Circuit OperationService Parts DIS