Siemens SINAMICS G120 Error Code F30043

Siemens PLC & VFD Major Hardware

Model: SINAMICS G120 | Code: F30043

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

Symptoms

Power module fault during operation.

Possible Causes

  • IGBT module failure
  • Gate driver fault
  • Internal component damage

Troubleshooting Steps

  1. Step 1: Power cycle the drive
    Fault may clear if transient
  2. Step 2: Inspect for physical damage
    No visible damage
  3. Step 3: Replace power module if persistent
    New module operates correctly

How to Reset

Reset via operator panel after power module repair.

Related Siemens Fault Codes

Source: Siemens SINAMICS G120 List Manual

Category: PLC & VFD