SLS signal inconsistency

What does A01691 mean?

An inconsistency has been detected in the safety input signals, specifically related to the Safe Limited Speed (SLS) function. The drive will initiate a controlled deceleration (SS1) and eventually enter a Safe Torque Off (STO) state, issuing a fault due to the potential compromise of safety integrity.

Complete Troubleshooting Guide

1. 1

   Inspect and verify the wiring and functionality of all safety input signals connected to the drive.

2. 2

   Check for any interference or faulty components affecting the consistency of these signals, ensuring signal integrity.

3. 3

   Acknowledge the resulting Safe Torque Off (STO) fault after resolving the signal inconsistency and verifying safety circuits.