Siemens SINAMICS G120 Error Code F01649

Siemens PLC & VFD Critical System

Model: SINAMICS G120 | Code: F01649

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

Symptoms

Internal software error in safety module.

Possible Causes

  • Safety firmware bug
  • Internal safety software fault
  • Memory corruption in safety module

Troubleshooting Steps

  1. Step 1: Power cycle the drive
    Fault may clear if transient
  2. Step 2: Update safety firmware
    Firmware up to date
  3. Step 3: Replace safety module if persistent
    New module initializes correctly

How to Reset

Reset via operator panel after safety module repair.

Related Siemens Fault Codes

Source: Siemens SINAMICS G120 List Manual

Category: PLC & VFD