Safe torque off

What does A5A0 mean?

This warning is generated when the drive is stopped and either one or both Safe Torque Off (STO) signals are lost. It indicates that the STO function is active or improperly engaged, preventing the drive from starting, but not necessarily tripping if already stopped. This is a crucial indication of a safety circuit status.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure that any external STO activation is intentional and cleared if not.

2. 4

   Reset the warning after resolving the STO signal issue to enable drive operation.