LOW LINE ALARM

What does 406 mean?

This alarm indicates that the input AC line voltage has sagged more than 10% below the nominal line voltage, as configured by parameter #9. This is a warning and does not automatically shut down the DSD 412 drive, but it suggests that preventative action may be required to avoid future F904 Low Line shutdown faults.

• Insufficient or sagging 3 Phase Input AC Line Voltage.

Click steps to track your progress.

1. 1

   Measure the 3 Phase Input AC Line Voltage to verify its stability and level.

2. 2

   Verify that the nominal line voltage setting in parameter #9 accurately reflects the system's requirements.