Siemens SINAMICS G120 Error Code F31148

Siemens PLC & VFD Major Encoder

Model: SINAMICS G120 | Code: F31148

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

Symptoms

Encoder motor feedback mismatch: feedback does not match motor.

Possible Causes

  • Wrong encoder for motor
  • Motor changed without config update
  • Encoder mounting error

Troubleshooting Steps

  1. Step 1: Verify encoder matches motor
    Encoder compatible with motor
  2. Step 2: Update motor configuration
    Configuration matches motor
  3. Step 3: Check encoder mounting
    Mounting correct and secure

How to Reset

Reset via operator panel after feedback mismatch is corrected.

Related Siemens Fault Codes

Comments (0)

Share your experience to help others facing the same problem.

No comments yet. Be the first to share your experience!

Leave a Comment

Source: Siemens SINAMICS G120 List Manual

Category: PLC & VFD