SOF
Overspeed
Schneider Electric · ATV32HD11N4 Variable Speed Drive
What does SOF mean?
The motor has exceeded its programmed maximum speed or the drive has detected an unstable speed condition, possibly due to a driving load that forces the motor beyond its setpoint. This can lead to mechanical damage or loss of control.
Complete Troubleshooting Guide
- 1
Check the motor, gain, and stability parameters in the drive configuration to ensure stable operation.
- 2
If the load is driving the motor (regenerative braking), consider adding a braking resistor to dissipate excess regenerative energy.
- 3
Verify the sizing of the motor, drive, and load to ensure appropriate operating limits and prevent overspeed conditions.