What are some possible remedies for an Altivar 630 drive with an OSF supply mains overvoltage fault?
Resolution:
-
Check Line Voltage (L1, L2, L3):
- Verify the incoming line voltage is within the drive's specified operating range.
- Ensure all three phases are present and properly balanced.
-
Check DC Bus Voltage (PA+ to PC-):
- Measure the DC bus voltage between terminals PA+ and PC-.
- The DC bus voltage should typically be approximately 1.41 × mains voltage.
- A significantly higher reading may indicate an overvoltage condition on the incoming power supply.
-
Add a Line Reactor:
- Installing a line reactor may help reduce voltage transients and improve power quality.
-
Monitor Incoming Voltage:
- Perform continuous monitoring of the supply voltage to identify intermittent overvoltage events, voltage spikes, or voltage fluctuations.
- A power quality analyzer or scope meter is recommended to capture transient events that may not be visible with a standard multimeter.
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 atdrive.products.support@se.comto create a case with our Technical Support Team.
If you are not located in North America, please contact your local Customer Care Center for assistance:
Support | Schneider Electric Global (se.com)
Released for: Schneider Electric Canada
