Issue:
ATV32 causes of an Output Phase Loss.
Product line:
Altivar Machine 32, ATV320
Cause:
Loss of phase / low current
Resolution:
The output phase loss faults are derived from the VFD measurement of output current.
OPF1 is the detection of the loss of one output phase between the drive and the motor.
OPF2 is the detection of the loss of all three phases between the drive and the motor.
- Confirm the motor settings are correctly entered into the drive Motor Control (DRC) menu
- Check the wiring connections between the drive and the motor. If there are any disconnects or junctions, check that the disconnect is closed and junction connections are secure.
- If the motor is undersized for the drive HP rating, the drive may trip on phase loss due to low current detection, causing the drive to believe a phase is lost.
- Confirm the drive is working properly by disconnecting the motor leads, setting Output Phase Loss (OPL) to No, run the drive and check for equal voltage output, phase to phase.
- If using an output contactor, set Output Phase Loss (OPL) to Output Cut (OAC)
ATV32 causes of an Output Phase Loss.
Product line:
Altivar Machine 32, ATV320
Cause:
Loss of phase / low current
Resolution:
The output phase loss faults are derived from the VFD measurement of output current.
OPF1 is the detection of the loss of one output phase between the drive and the motor.
OPF2 is the detection of the loss of all three phases between the drive and the motor.
- Confirm the motor settings are correctly entered into the drive Motor Control (DRC) menu
- Check the wiring connections between the drive and the motor. If there are any disconnects or junctions, check that the disconnect is closed and junction connections are secure.
- If the motor is undersized for the drive HP rating, the drive may trip on phase loss due to low current detection, causing the drive to believe a phase is lost.
- Confirm the drive is working properly by disconnecting the motor leads, setting Output Phase Loss (OPL) to No, run the drive and check for equal voltage output, phase to phase.
- If using an output contactor, set Output Phase Loss (OPL) to Output Cut (OAC)
If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:
Frequently Asked Questions - Schneider Electric (se.com)
If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us at drive.products.support@se.com to create a case with our Technical Support Team.
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