Siemens SINAMICS G120 Error Code F01651

Siemens PLC & VFD Major Safety

Model: SINAMICS G120 | Code: F01651

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

Symptoms

Safety time slice synchronization failed.

Possible Causes

  • Safety communication timing error
  • Clock synchronization fault
  • Network jitter too high

Troubleshooting Steps

  1. Step 1: Check safety communication timing
    Timing within specification
  2. Step 2: Verify network synchronization
    Synchronized correctly
  3. Step 3: Reduce network load if needed
    Load within limits

How to Reset

Reset via operator panel after timing is corrected.

Related Siemens Fault Codes

Source: Siemens SINAMICS G120 List Manual

Category: PLC & VFD