The DGC-500 is a generator-set controller.
| Display | backlit LCD, LEDs |
|---|---|
| Communications | RS-485 |
| Digital inputs | Emergency Stop (Form A), three programmable inputs (normally open, Form A) |
| Protections | Low coolant temperature, High coolant temperature, Low oil pressure, Low fuel level, Weak battery, Battery overvoltage, Battery charger failure, Low coolant level, High coolant temperature, Low oil pressure, Overcrank, Overspeed, Emergency stop, Fuel leak/fuel level sender failure, Engine sender unit failure |
| Symptom | Cause | Remedy |
|---|---|---|
| Low Oil Pressure | A low oil pressure pre-alarm occurs when the engine oil pressure decreases below the setpoint programmed in BESTCOMS. | |
| Low Fuel | A low fuel pre-alarm occurs when the fuel level decreases below the setpoint programmed in BESTCOMS. | |
| High Coolant Temperature | A high coolant temperature pre-alarm occurs when the engine coolant temperature exceeds the setpoint programmed in BESTCOMS. | |
| Low Coolant Temperature | A low coolant temperature pre-alarm occurs when the engine coolant temperature decreases below the setpoint programmed in BESTCOMS. | |
| Battery Overvoltage | A battery overvoltage pre-alarm occurs when the battery overvoltage pre-alarm function is enabled in BESTCOMS and the battery voltage level exceeds 30 Vdc for 24 Vdc system or 15 Vdc for 12 Vdc systems. | |
| Low Battery Voltage | A low battery voltage pre-alarm occurs when the battery voltage decreases below the low battery voltage setpoint for the duration of the low battery voltage time delay setting. Both settings are made in BESTCOMS. | |
| Low fuel level | ||
| Weak battery | ||
| Battery charger failure | ||
| Low coolant level | ||
| Overcrank | ||
| Overspeed | ||
| Emergency stop | ||
| Fuel leak/fuel level sender failure | ||
| Engine sender unit failure | ||
| Fuel leak | ||
| Fuel leak/sender failure | ||
| Scheduled maintenance due | ||
| Weak battery voltage | ||
| Battery charger | ||
| Coolant temperature sender failure | ||
| MPU speed sender failure | ||
| Oil pressure sender failure | ||
| Active diagnostic trouble code | on request | |
| Lamp status | on request | |
| Previously active diagnostic trouble code | on request | |
| Request to clear previously active DTCs | on request | |
| Request to clear active DTCs | on request |
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.