The EMCP 3.1 is a generator-set controller. It is used on generator sets from Caterpillar, including the 3512 TA, 3512B HD, 3512B TA and 3516B TA.
| Display | LCD Display with adjustable contrast and backlight with auto power off |
|---|---|
| Analog inputs | AC metering: Volts 3-phase (L-L & L-N); Amps (per phase & average); Frequency; DC metering: Battery Volts; Engine Hours Run; Engine Jacket Water Temperature (in °C or °F); Lube Oil Pressure (in psi, kPa or bar); Engine Speed (rpm) |
| Protections | Fail to start shutdown, Low oil pressure shutdown, High engine temperature, Low / High battery voltage, Battery charger failure (if fitted), Underspeed / Overspeed, Loss of Engine Speed Detection |
| Symptom |
|---|
| Fail to start shutdown |
| Low oil pressure shutdown |
| High engine temperature |
| Low / High battery voltage |
| Battery charger failure (if fitted) |
| Underspeed / Overspeed |
| Loss of Engine Speed Detection |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Extracted directly from this controller's manual.
Also fitted to: Caterpillar PRIME, Caterpillar STANDBY, Caterpillar XQ100 w/trailer, Caterpillar XQ80 w/trailer.
| Code | Meaning |
|---|---|
| 21 | Fault shutdown |
| 22 | Fault alarm |
| 2301A Control | When the engine oil pressure is increased beyond the low oil pressure setpoint, the GSC will inform the governor that the engine speed should be increased from IDLE to RATED rpm. |
| g00604607 | The fault alarm indicator (3) flashes when the GSC detects an alarm fault. |
| Symptom | Cause | Remedy |
|---|---|---|
| Emergency Stop (GSC+) — 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 |
| 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 (GSC+) — 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 |
| 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 (GSC+) — 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 |
| 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 (GSC+) — 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 |
| 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 (GSC+) — 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 |
| 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.