Overvoltage During Acceleration

What does OP1 mean?

This fault indicates an overvoltage condition during motor acceleration by the Altivar 212 drive, which can be caused by abnormal input voltage fluctuations, issues with the power network, or power factor capacitor switching.

• Input voltage is fluctuating abnormally.
• Power network capacity is greater than 200 kVA.
• Power factor capacitor switching in the supply network.
• SCR switching on the power network.
• Drive is starting into a rotating load.
• Intermittent output phase fault.

Click steps to track your progress.

1. 1

   Install a line reactor to mitigate input voltage fluctuations.

2. 2

   Enable catch on the fly function (F301).

3. 3

   Set parameter F302 ([Supply loss behav.]) to 2 (Freewheel).

4. 4

   Determine the cause of any missing output phase (e.g., bad connection, output disconnect, open winding) and rectify it.