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rH fault code in yaskawa P1000 drive

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Cause : Braking Resistor Overheat comes when the deceleration time is too short and excessive regenerative energy is flowing back into the drive or the duty cycle is too high. 

  1. Check the load level, deceleration time, and speed.
  2. Decrease the load.
  3. Examine the duty cycle.
  4. Use a braking resistor that improves braking power.
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