22 Winco generator fault/alarm codes with symptom, cause and remedy — compiled from Winco service and controller documentation.
| Code | Meaning / symptom | Cause | Remedy |
|---|---|---|---|
| 057-243 | Generator Under Volts gives a warning alarm in the event of the generator output falling below the configured Under Volts Pre-Alarm Trip value for longer than the Activation Delay. | ||
| 057-243 | Under Speed Alarm | ||
| 057-243 | Over Speed Pre-Alarm | ||
| 057-243 | Run Away Shutdown alarm is immediately triggered. | ||
| Battery Under/Over Voltage | The DC supply has fallen below or risen above the low/high Volts setting level. | ||
| Engine High Oil Temperature | The module detects that the engine oil temperature has exceeded the high engine temperature pre-alarm setting level after the Safety On timer has expired. | ||
| Fail to Start | The engine has not fired after the preset number of start attempts. | ||
| Fail to Stop | The module has detected a condition that indicates that the engine is running when it has been instructed to stop. | If engine is at rest, check oil sensor wiring and configuration. | |
| Generator Over Frequency | The generator output frequency has risen above the pre-set pre-alarm setting | ||
| Generator Over Voltage | The generator output voltage has risen above the pre-set pre-alarm setting after the Safety On timer has expired. | ||
| Generator Under Frequency | The generator frequency has fallen below the pre-set pre-alarm setting after the Safety On timer has expired. | ||
| Generator Under Voltage | The generator output voltage has fallen below the pre-set pre-alarm setting level. | ||
| IDMT ALARM | If the Over Current IDMT Alarm is enabled, the controller begins following the IDMT ‘curve’ when the current on any phase passes the Trip setting. If the Trip is surpassed for an excess amount of time, the IDMT Alarm triggers (Shutdown or Electrical Trip as selected in Action). The larger the over circuit fault, the faster the trip. | Generator current exceeds the trip level and remains above it for a duration that surpasses the set threshold. | |
| IMMEDIATE WARNING | If the Immediate Warning is enabled, the controller generates a warning alarm as soon as the Trip level is reached. The alarm automatically resets once the generator loading current falls below the Trip level (unless All Warnings are latched is enabled). | Generator current exceeds the trip level. | |
| Low Oil Pressure | The module detects that the engine oil pressure has fallen below the low oil pressure pre-alarm setting level after the Safety On timer has expired. | ||
| Mains Earth Fault | Generator earth fault current rose above the Mains Earth Fault Trip Level for the duration of the IDMT function. | ||
| Mains Over Current | Mains output current rose above the Mains Over Current Trip level. | ||
| Mains Phase Seq Wrong | Phase rotation of mains was different to configured Mains Phase Rotation Alarm setting. | ||
| Over Speed Alarm | Shutdown alarm in the event of the engine speed rising above the configured Over Speed Alarm Trip value for longer than the Activation Delay. | ||
| Over Speed Pre-Alarm | Warning alarm in the event of the engine speed rising above the configured Over Speed Pre-Alarm Trip value for longer than the Activation Delay. The Warning is automatically reset when the engine speed falls below the configured Return level. | ||
| Overspeed | The engine speed has risen above the overspeed pre-alarm setting. | ||
| Run Away | In the event of the generator output frequency rising above the configured Trip value, the Run Away Shutdown alarm is immediately triggered. This is used to protect against engine damage due to uncontrolled speed increase. | Generator output frequency exceeds the configured trip value. | |
| Run Away | Immediate Shutdown alarm triggered when the engine speed rises above the configured Trip value. | ||
| Short Circuit IDMT Alarm | Generator output current rose above the Short Circuit Trip for the duration of the IDMT function. | ||
| Under Speed Alarm | Shutdown or Warning depending on configuration: The engine speed falling below the configured Under Speed Alarm Trip value for longer than the Activation Delay. | ||
| Underspeed | The engine speed has fallen below the underspeed pre-alarm setting. |
Compiled from Winco service manuals and controller documentation. 2 code numbers mean different things on different controllers; each meaning is listed with the models it applies to. Cause/remedy shown where extracted; always verify against the manual for your exact model.
The module has detected a condition that indicates that the engine is running when it has been instructed to stop.. Cause: If engine is at rest, check oil sensor wiring and configuration..
If the Over Current IDMT Alarm is enabled, the controller begins following the IDMT ‘curve’ when the current on any phase passes the Trip setting. If the Trip is surpassed for an excess amount of time, the IDMT Alarm triggers (Shutdown or Electrical Trip as selected in Action). The larger the over circuit fault, the faster the trip.. Cause: Generator current exceeds the trip level and remains above it for a duration that surpasses the set threshold..
If the Immediate Warning is enabled, the controller generates a warning alarm as soon as the Trip level is reached. The alarm automatically resets once the generator loading current falls below the Trip level (unless All Warnings are latched is enabled).. Cause: Generator current exceeds the trip level..