UNDERSPEED

UnclassifiedSpeed

What This Code Means

Immediate engine stop; Stop with engine cooling; Engine ring gear rotation speed is over the maximum limits; Engine ring gear rotation speed is under the programmed minimum limits; Effective amperage value in any of the phases is superior to the maximum programmed overload limit but under the maximum limit of short-circuit

Possible Causes

  • Rotation speed of the ring gear is over the maximum limits (Thresholds table parameter 11) during the stabilization time (alarms table parameter 23)
  • Rotation speed of the ring gear is under the programmed minimum limits (Thresholds table parameter 12) during the stabilization time (alarms table parameter 26)
  • Rotation speed of the ring gear is over the maximum limits of the rotation speed (Thresholds table parameter 11) during the stabilization time (alarms table parameter 23)
  • Rotation speed of the ring gear is kept under the programmed minimum limits (Thresholds table parameter 12) during the stabilization time (alarms table parameter 26)
  • 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)

Suggested Actions

  1. 1Immediate engine stop
  2. 2Stop with engine cooling

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for UNDERSPEED on your specific Himoinsa unit — cited to the OEM manual, not a forum guess.

TRY IT FREE