What voltage level causes an Overvoltage Fault (OSF) on an ATV61 or ATV71 series drive?
Published date:
10 September 2019
Issue:
The voltage level that causes an Overvoltage Fault (OSF) on an ATV61 or ATV71 series drive.
Product Line:
Altivar 61 and Altivar 71 series drives.
Environment:
All part numbers ending with M3XXX or N4XXX, All serial numbers.
Cause:
N/A
Resolution:
- The over supply flag OSF FAULT is set when the drive is in the capacitor charging state and the dc bus voltage is higher than OSFH_Level.
- The over supply flag OSF FAULT is set when the drive is in the PWM disabled state and when the dc bus voltage is higher than OBFH_Level.
- The flag OSF FAULT is reset when the dc bus voltage is lower than OSFL Level.
- The over supply detection is always activated and cannot be inhibited.