Siemens SINAMICS G120 Error Code F31161

Siemens PLC & VFD Major Encoder

Model: SINAMICS G120 | Code: F31161

Applicable Systems
S7-1200 S7-1500 S7-300 S7-400 LOGO! SINAMICS

Symptoms

Encoder clock error: encoder clock signal fault.

Possible Causes

  • Encoder clock signal lost
  • Clock cable fault
  • Encoder clock circuit failure

Troubleshooting Steps

  1. Step 1: Check encoder clock signal
    Signal present and correct
  2. Step 2: Verify clock cable
    Cable intact
  3. Step 3: Replace encoder if clock circuit faulty
    New encoder operates correctly

How to Reset

Reset via operator panel after encoder clock is restored.

Related Siemens Fault Codes

Source: Siemens SINAMICS G120 List Manual

Category: PLC & VFD