Undervoltage

What does 9 mean?

The DC link voltage has fallen below acceptable limits while the drive is in the Run state. This can be caused by a low supply voltage, a defective internal component, a blown input fuse, or an external charge switch not being closed. A persistent undervoltage can prevent drive operation and indicate a power supply issue.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Examine the electrical network for any faults, including input fuses.

2. 4

   If the supply voltage is sufficient and stable, an internal drive fault may be present; contact your distributor.