F01651

Synchronization, safety time slices unsuccessful

Siemens · SINAMICS G120 Safety Functions

What does F01651 mean?

Synchronization of safety time slices within the Control Unit was unsuccessful, which can prevent proper and safe operation of the drive. This might indicate a transient issue or a deeper problem with the unit's internal timing or processing, affecting safety integrity.

Complete Troubleshooting Guide

  1. 1

    Cycle the power supply of the Control Unit (off then on).

  2. 2

    If the fault persists and cannot be acknowledged, replace the Control Unit.

Source: Siemens Manual