The EMCP II+ is a generator-set controller. It is used on generator sets from Caterpillar, including the 3208, 3412, 3412C Generator Set and DM2273.
Also fitted to: Caterpillar G3516C Gas Generator Set (Island Mode), Caterpillar G3520E SCAC 4-stroke-cycle, watercooled gas engine.
| Code | Meaning | Remedy |
|---|---|---|
| 21 | Fault shutdown | |
| 22 | Fault alarm | |
| i01226491 | Engine overspeed | Stop the engine by shutting off the fuel supply to the engine and/or shutting off the air supply to the engine. |
| null | Increased coolant temperature |
| Symptom | Cause | Remedy |
|---|---|---|
| Emergency Stop — The operator presses the emergency stop push button (ESPB) on the front panel; the emergency stop indicator FLASHES and the engine is shut down; the engine is not allowed to start until the condition is corrected | The operator presses the emergency stop push button (ESPB) on the front panel | Correct the condition; the engine is not allowed to start until the condition is corrected |
| Engine Overspeed — The engine speed exceeds the setpoint for engine overspeed that is programmed into the GSC; the engine overspeed indicator FLASHES; the engine is shutdown and the engine is not allowed to start until the fault is corrected | The engine speed exceeds the setpoint for engine overspeed that is programmed into the GSC | Correct the fault; the engine is not allowed to start until the fault is corrected |
| High Water Temperature — The engine coolant temperature rises above the setpoint for high water temperature shutdown that is programmed into the GSC; the high water temperature indicator FLASHES; the engine is shutdown and the engine is not allowed to start until the fault is corrected | The engine coolant temperature rises above the setpoint for high water temperature shutdown that is programmed into the GSC | Correct the fault; the engine is not allowed to start until the fault is corrected |
| Low Coolant Level — The engine coolant level drops below the probe of the coolant loss sensor; the engine coolant level indicator FLASHES; the engine is shut down; the engine is not allowed to start until the fault is corrected | The engine coolant level drops below the probe of the coolant loss sensor | Correct the fault; the engine is not allowed to start until the fault is corrected |
| Low Oil Pressure — The engine oil pressure drops below the setpoints for low oil pressure shutdown that are programmed into the GSC; the low oil pressure indicator FLASHES, and the engine is shut down; the engine is not allowed to start until the fault is corrected | The engine oil pressure drops below the setpoints for low oil pressure shutdown that are programmed into the GSC | Correct the fault; the engine is not allowed to start until the fault is corrected |
| Overcrank — The engine does not start within the setpoint for total cycle crank time that is programmed into the GSC; the overcrank indicator FLASHES; the engine is not allowed to start until the fault is corrected | The engine does not start within the setpoint for total cycle crank time that is programmed into the GSC | Correct the fault; the engine is not allowed to start until the fault is corrected |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.