F01662

Error, internal communications

Siemens · SINAMICS G120 Safety Functions

What does F01662 mean?

An internal communication error has occurred within the Control Unit. This indicates a disruption in data exchange between internal components, which can lead to unpredictable behavior or system shutdown, compromising operational stability and safety.

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, contact Technical Support.

Source: Siemens Manual