Overvoltage During Deceleration

What does OP2 mean?

This fault indicates an overvoltage condition during motor deceleration by the Altivar 212 drive, possibly due to excessively short deceleration times, overhauling loads, or fluctuating input voltage.

• Deceleration time is too short (dEC or F501).
• Overhauling load on the motor.
• 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

   Increase the deceleration time parameters (dEC or F501).

2. 2

   Enable parameter F305 ([Overvoltage fault]) for overvoltage prevention.

3. 3

   Install a line reactor to mitigate input voltage issues.

4. 4

   Check the input and output circuits for phase loss detection and rectify.

5. 5

   Enable catch on the fly function (F301).