Himoinsa

OVERLOAD ALARM

UnclassifiedElectrical

What This Code Means

Amperage values are kept over the maximum programmed overload limits during the stabilization time; Difference between any pair of real voltage values among generating set voltage phases (VG12, VG23, or VG31) is over the maximum asymmetry programmed limits; Overspeed alarm active; Immediate engine stop; Underspeed alarm active; Stop with engine cooling; Overload alarm active

Possible Causes

  • •Amperage value is superior to the maximum programmed overload limit (Thresholds table parameter 7) but under the maximum limit of short-circuit (Thresholds table parameter 8) on the checked phases
  • •Voltage difference between genset phases exceeds the maximum asymmetry programmed limits (Thresholds table parameter 4) during the stabilization time
  • •Rotation speed of the engine ring gear exceeds the maximum limits (Thresholds table parameter 11) during the stabilization time (alarms table parameter 23)
  • •Rotation speed of the engine ring gear is under the programmed minimum limits (Thresholds table parameter 12) during the stabilization time (alarms table parameter 26)
  • •Effective amperage value in any phase is superior to the maximum programmed overload limit (Thresholds table parameter 7) but under the maximum limit of short-circuit (Thresholds table parameter 8)

Suggested Actions

  1. 1Stop with engine cooling

Related Himoinsa Fault Codes

SHORT CIRCUITSTART FAILURE ALARMMINIMUM GENSET VOLTAGESTOP FAILUREMINIMUM GENSET FREQUENCYMAXIMUM GENSET VOLTAGEMAXIMUM GENSET FREQUENCY ALARMMAXIMUM GENSET FREQUENCYINVERSE POWERGENSET VOLTAGE ASYMMETRY ALARMERRONEOUS PHASE SEQUENCE OF THE GENSETEMERGENCY STOP
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