Cause : Main overvoltage comes when the input voltage to the drive has exceeded the allowable limits. This fault comes due to the line voltage too high.

"F016" fault in Schneider ATV310 drive indicate Main Overvoltage condition. This means the input voltage to the drive has exceeded the allowable limits.

Follow these steps to correct the fault:

1. Check Line Voltage: Verify that the input voltage to the drive is within the specified range.
2. Check Drive Environment: Ensure the drive is installed in a stable electrical environment, away from potential voltage fluctuations.