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OU3 fault in INVT d...
 
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OU3 fault in INVT drive

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(@click2electro)
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Joined: 3 years ago

Cause : Over voltage when constant speed comes when the inverter's internal main circuit DC voltage to reach or exceed the specified value.

  1. The protection circuit is activated to stop the inverter output.
  2. The circuit may also be activated by a surge voltage produced in the power supply system.
  3. Power supply abnormal.
  4. Check the input power source.
  5. Large load inertia.
  6. Add suitable braking devices.
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