Service Manual
Table Of Contents
- Table of Contents
- 1. IMPORTANT SAFETY INSTRUCTIONS
- 1.1 Warning, Caution, and Note Styles Used in This Manual
- 1.2 General Information
- 1.3 Generator Set Safety Code
- 1.4 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death
- 1.5 Fuel and Fumes Are Flammable
- 1.6 Exhaust Gases Are Deadly
- 1.7 The Hazards of Carbon Monoxide
- 1.8 Earth Ground Connection
- 2. Introduction
- 3. Startup
- 4. Operation
- 5. Maintenance
- 5.1 Maintenance Safety
- 5.2 Periodic Maintenance
- 5.3 Engine Oil
- 5.4 Engine Valve Clearance
- 5.5 Normal Duty Air Cleaner Element Replacement
- 5.6 Exhaust System Maintenance
- 5.7 DC Electrical System
- 5.8 Batteries
- 5.9 Spark Plugs
- 5.10 Cleaning the Generator Set Housing
- 5.11 Cleaning the Slip Rings
- 5.12 Exercising the Generator Set
- 5.13 Complete System Test
- 6. Service
- 7. Troubleshooting
- 7.1 Troubleshooting Procedures
- 7.2 Safety Considerations
- 7.3 GATRR Troubleshooting Approach
- 7.4 Tools and Parts Required
- 7.5 Troubleshooting with the Local or Remote Displays
- 7.6 Utility-Powered Battery Charger Troubleshooting
- 7.7 Engine Flywheel Battery Charger Troubleshooting
- 7.8 Fuel Shutoff Solenoid Valve
- 7.9 Compression Test Procedure
- 7.10 Connecting with the InPower Service Tool
- 7.11 Troubleshooting by Symptom
- 7.12 Troubleshooting with Fault Codes
- 7.13 Remote Monitoring Communication Troubleshooting
- Appendix A. Wiring Diagrams
6. Service10-2019
89A062J683 (Issue 1) Copyright © 2019 Cummins Inc.
Generator Set Control
Type Description
General The generator set control is an integrated microcontroller-based engine,
alternator and transfer switch control. It provides all the control,
monitoring and diagnostic functions required to operate this generator
set.
Transfer
Switch
Control
When a transfer switch without a built-in controller is used, all transfer
and retransfer signals come from the generator set control. Transfer
times are pre-set and not adjustable:
• Power transfer delay from the utility to the generator set is set at 1
second.
• Retransfer delay back to the utility is set for five minutes. (After
retransfer, there is a generator set cool down period of five
minutes.)
Connections Optional Ethernet connections are through a Cat 5a or 6 Ethernet cable
connector. Refer to the appropriate wiring diagrams and wiring harness
drawings.
Mounting The generator set control is mounted on the engine end of the generator
set.
Configuration Perform the instructions in the "Generator Config" Screen section when
replacing the control board.
Control Board
Replacement
See the Control Board Replacement section.
Control
Software
Updates
1. Disconnect the harness to the local display at J1 before updating the
control software. Refer to the appropriate wiring diagrams for more
information.
2. Connect the InPower service tool (PN A044M377) to service
connector J5.
3. Press the Stop button to wake up the control.
4. Connect InPower and update the software.
5. Disconnect the service tool harness and reconnect the local display
to J1.
Display Setup
The HMI Type screen is used to modify the display and user preferences. A display
can be set up to be Local or Remote (default = Remote).