Siemens SINAMICS G120 F30017: Power unit: hardware current limit response too frequent

Siemens SINAMICS Electrical Fault Drive

Model: G120/G120C | Code: F30017

Symptoms

Hardware current limit responded too frequently in each phase. Allowable excess depends on power unit type.

Possible Causes

  • Closed-loop control parameters set incorrectly
  • Motor or power cable fault
  • Power cable exceeds maximum allowable length
  • Motor load too large
  • Power unit damaged
  • Load surge

Troubleshooting Steps

  • Verify motor data parameters are correct
  • Check motor connection (star/delta)
  • Check power cable connections
  • Check power cable for short circuit or ground fault
  • Verify power cable length within limits
  • Replace power unit if damaged
  • Check motor load conditions

How to Reset

Reset by: 1) Correct the fault condition. 2) Press RESET button or send reset command via communication. 3) Verify fault does not recur during operation.

Related Siemens SINAMICS Fault Codes

Source: Siemens SINAMICS G120 Common Faults Manual (ad.siemens.com.cn)

Category: Electrical