Safe Disable Circuit Fault

What does Safe Disable Fault mean?

The drive output is disabled, but only one of the Safe Disable inputs (H1 or H2) is detected as open, which indicates an abnormal condition. This could be due to an internal fault within one channel of the drive's safe disable circuit or an incorrect, asynchronous signal from the external safety controller.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the external signals are confirmed to be correct but the fault persists, it suggests an internal failure of a Safe Disable channel, and the drive should be replaced.