RIM GP-DEMOUNTABLE 1177840 - Caterpillar

Illustration 1 g00798215
Fuel Control Relay For ETR SystemsNote: The setpoint P023 for the GSC+ must be correct for the engine application. Ensure that the setpointP023 is programmed correctly for the engine application before continuing with this procedure. There are several possible causes for an engine that is not shutting down when a shutdown fault occurs.
Operator Error: The operating conditions of the generator may not be understood by the operator. Ensure that the condition is one that should cause an engine shutdown.
Programming Error-Fault Is Overridden Or Disabled: It is possible to program the GSC+ in order to override certain shutdown faults. An overridden shutdown fault will be treated as an alarm fault. The YELLOW fault alarm indicator will be FLASHING instead of the RED fault shutdown indicator. No fault indicators or fault codes are shown on the GSC+ if the GSC+ is programmed in order to disable a particular fault. In such cases, check any of the setpoints that are related to that particular fault. For example, a generator is not shutting down when an overvoltage fault occurs. Verify that the Overvoltage Shutdown Enable setpoint P104 is programmed correctly.
Programming Error - Setpoints Incorrect For Application Or Customer Needs: It is possible to program the GSC+ setpoints to a value that does not allow the situation to be recognized by the GSC+ as a shutdown condition. In this case, check the appropriate setpoints for correct values. For example, if the generator is not shutting down when a high coolant temperature condition occurs, make sure setpoint P015 (High Water Temperature Shutdown) is correct for the application.
Faulty Component: Some examples of faulty components that could prevent the GSC+ from shutting down the engine are: GSC+ and a broken or shorted harness wire. In this case, the GSC+ will be issuing a command to shut down the engine due to a diagnostic code, but the engine remains running. Test Step 1. CHECK FOR DIAGNOSTIC CODES
Check the GSC+ for a diagnostic code on the upper display.Expected Result:The GSC+ should show a diagnostic code on the upper display.Results:
YES - The GSC+ shows a diagnostic code on the upper display.Repair: See theTesting and Adjusting section of this book for the diagnostic code that is displayed on the GSC+. Stop.
NO - The GSC+ does NOT show a diagnostic code on the upper display. Proceed to Test Step 2.Test Step 2. CHECK THE YELLOW FAULT ALARM INDICATOR
Check the display area of the GSC+ for the yellow fault alarm indicator.Expected Result:The yellow fault alarm indicator should be illuminated CONTINUOUSLY.Results:
YES - The yellow fault alarm indicator is illuminated CONTINUOUSLY.Repair: The GSC+ has been programmed to override the normal shutdown response and the GSC+ treats the condition as an alarm fault. The engine will continue to run. In order to view the setpoints, see System Operation, "Engine/Generator Setpoint Viewing OP2-0". In order to reprogram the setpoints, see System Operation, "Engine/Generator Programming OP5-0". Stop.
NO - The yellow fault alarm indicator is not illuminated at all. Proceed to Test Step 3.Test Step 3.