What are some possible remedies for an Altivar 630 drive with an OSF supply mains overvoltage fault?

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Issue:
Clearing an OSF (Supply Mains Overvoltage) Fault on a Process Drive ATV630

Product Line:
Altivar 630

Environment:
All serial numbers for Altivar 630

Cause:
N/A

Resolution:
Some possible Remedies:
Check Line Voltage (L1, L2, L3)
Check DC Bus Voltage (PA+ to PC-)
Add Line Reactor
Continuous monitoring on Line Voltage to check for spikes or voltage dips (Scope Meter recommended)