Power Loss

What does F3 mean?

This fault occurs when the drive detects a low voltage condition or an interruption on the incoming AC power line. This can lead to unstable operation or unexpected shutdowns.

• Complete loss of primary power to the drive.
• Internal power supply failure within the unit.
• Main fuse blown or circuit breaker tripped.
• AC mains supply failure.

Click steps to track your progress.

1. 1

   Measure the incoming AC line voltage at the drive input terminals (L1, L2, L3) to identify any sag or interruption.

2. 2

   Verify the integrity of the upstream power supply and circuit breakers feeding the drive.