MINIMUM GENSET FREQUENCY ALARM
UnclassifiedCooling
What This Code Means
Voltage values obtained between genset phases (VG12, VG23, or VG31) are under the minimum programmed limits; Genset frequency is under the minimum programmed frequency limits; No frequency signal detected on the first-phase, second-phase, or third-phase; Unexpected engine shutdown; Engine stop failure; Engine conditions are not detected 15 seconds after a stop attempt
Possible Causes
- •Voltage values between genset phases remain under the minimum programmed limits (Thresholds table parameter 3) during the programmed time (alarms table parameter 62)
- •Genset frequency values obtained are kept under the minimum programmed limits (Thresholds table parameter 6) during the stabilization time (alarms table parameter 65)
- •Controller fails to detect all engine starting conditions (regulations table parameters 19 to 22) while the engine is running
- •All engine conditions (regulations table parameters 19 to 22) are not detected within 15 seconds after an engine stop attempt
Suggested Actions
- 1Stop the engine with cooling (configured via alarms table parameter 63)
- 2Stop the engine with cooling (configured via alarms table parameter 66)
- 3Disconnect the stop failure alarm (alarms table parameter 70) to allow the device to consider the engine stopped after waiting 15 seconds
- 4Ensure all stopping conditions are detected during a programmed time (alarms table parameter 71) to successfully detect the engine stop
Related Himoinsa Fault Codes
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