| The engine shut down due to an emergency stop | | |
| The engine shut down due to a diagnostic fault | | |
| Reverse Power Fault | When the generator set is in parallel with generators remain magnetically coupled and the generator then drives the engine. Instead of power going OUT, power flows INTO the failing generator. | The reverse power relay (RPR) closes its contact across RpR (5 and 6) (line 19) (located on DC Schematic). This causes the engine to shut down. If the generator output breaker is equipped with shunt trip, the generator is taken off line. See the Schematics And Wiring Diagrams section. After the reverse power fault is corrected, the control is reset by turning the engine control switch (ECS) to the OFF/RESET position. Also reset the generator output breaker if equipped with shunt trip. |
| Engine Over-speed | | The engine speed exceeded the overspeed setpoint programmed into the engine control module. |
| Coolant Temperature Exceeded High Setpoint | | Coolant temperature has exceeded the high temperature alarm setpoint programmed into the engine control module. |
| Low Oil Pressure | | Oil pressure is below the low oil pressure alarm setpoint programmed into the engine control module. |
| Coolant Temperature Exceeded Low Setpoint | | Coolant temperature is below the low temperature alarm setpoint programmed into the engine control module. |
| Engine Failed to Start (Overcrank) | | The engine failed to start (overcrank). |
| Engine Shutdown Due to Remote Fault Condition | | The engine shut down due to a remote fault condition. |
| ECN,4 Display:06 dLAG, internal failure of ECN4 or unstable voltage supply. | Loose connection between battery positive (B+) or battery negative (B-) to ECM is still like y Run separate supply wires. Replace ECM if this fails to correct problem. | Reset and wait 90 seconds. Restart to see if problem re-occurs. If it does, look for possible sources of electrical noise such as loose connections in supply to ECN/4. Install jumper between terminals D and F of the ECM. Reset and start engine. |
| ECM Display = 07 dLAG, internal ECM programming switch does NOT match program | The 07 dLAG code simply indicates that the setpoint value programmed into setpoint 02 does NOT match the position of the rotary switch. | Turn the ECS to the OFF/FESET position Next, turn the ECS to the RUN position. If the 07 dLAG code is still present, the value of setpoint 02 does NOT match the rotary switch position See Service Procedure A. |
| ECM Display = 08 dLAG, temperature probe problem | If ambient temperature is near -40oC (-40°F) use heaters to warm up the engine before start. If temperature is warmer, check connectors between oil pressure/temperature transducer and the temperature probe. | |
| EC1V Display : 09 dLAG, ECN/ displays high oil pressure when the engine is NOT running and has cooled down | Record the oil pressure the ECN/ is displaying. Disconnect the harness connector of the engine oil pressure sensor Record the oil pressure the ECN,4 is now orsptaytng. | |
| Engine cranks but does NOT start or shuts down immediately after starting | Overcrank LED is lit. Engine does not crank. Starting rotor remains engaged or continues to run after engine has started. Engine shutdown occurs, all six LED fault indicators on the Eclvl flash. Engine shutdown occurs, overcrank LED is lit. Engine shutdown occurs, overspeed LED is lit. Engine shutdown occurs, low oil pressure LED is lit. Engine shutdown occurs, high coolant temperature LED is lit. Engine shutdown occurs, emergency stop F D i s | i. Engine shutdown occurs, reverse power relay LED is lit. No engine shutdown when a fault occurs. Engine shutdown with no LED'S lit or diagnostic codes on ECM. | |
| Remote annunciator or control panel alarm module data link controlled LED's all flash at a rate of once per two seconds (0.5 Hz). ACM displays all dashes ---. ACM Hz displays LO and voltmeter displays 0 | | |
| Overcrank Protection Fault | The engine fails to start in a preprogrammed amount of time. | Turn the ECS to the OFF/RESET position. |
| Overspeed Protection Fault | Engine speed exceeds the overspeed setpoint. | Lower the overspeed setpoint to 75% of its original value while the overspeed verify switch is depressed. To test, see Service Procedure H (Verify Overspeed Shutdown). |
| Low Oil Pressure Protection Fault | Engine oil pressure drops below the low oil pressure setpoint. | There are two low oil pressure setpoints. One for when the engine speed is below the oil step speed, and the other for when it is above. See Service Procedure J (Verify Low Oil Pressure Shutdown). |
| High Coolant Temperature Protection Fault | Engine coolant temperature exceeds the high coolant temperature setpoint. | See Service Procedure L (Verify High Coolant Temperature Shutdown). |
| Overspeed Shutdown Verification | | |
| High Coolant Temperature Shutdown Verification | | |
| Low Oil Pressure Shutdown Verification | | |
| 09 dlAG code, when the ECM sensed oil pressure is greater than 345 kPa (50 psi) and the engine is NOT running. | | Remove the test harness. If an engine is present, clear it. To clear the diagnostic code, decrease the sensed oil pressure by adjusting potentiometer R and then turn the ECS switch to the OFF/RESET position. Start and run the engine at idle speed. Keep the oil pressure displayed on the ECM low by slowly adjusting potentiometer R. Verify that shutdown occurs when the displayed engine oil pressure is the same as (or slightly less than) the setpoint for idle speed oil pressure shutdown. Verify that the low oil pressure LED, on the ECN4, is flashing. |
| Low DC Voltage Alarm Setpoint Adjustment | | Adjust the low DC voltage alarm setpoint using a potentiometer located under access plug (1) on the rear of the module. Ensure to remove the plug in a dry environment or an air-conditioned area with relative humidity not exceeding 60%. Use a variable DC power supply to set the desired low DCV alarm setpoint between 8 and 38 volts, turn the adjustment pot fully clockwise, wait for one minute, press the acknowledge/silence switch to get a steady low voltage light, then slowly turn the adjustment pot counterclockwise until the LED goes out. |
| LOW COOLANT TEMPERATURE FAIL | | |
| LOW OIL PRESSURE ALARM | | |
| AUTO ALARM OUTAGE | | |
| HIGH COOLANT TEMPERATURE FAIL | | |
| LOW OIL PRESSURE FAILURE | | |
| OVERCRANK ALARM | | |
| OVER SPEED ALARM | | |