Siemens SINAMICS V90, SIMOTICS S-1FL6 Error F30021: Ground fault

Industrial motor drive · taken from the manufacturer’s manual, pages cited

Fault codeF30021

The power unit has detected a ground fault in the cables or at the motor winding. The manual's first action is: “Check the power cable connections.”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
Ground fault (F30021)
Type
Fault code
Source
Manual p. 300

What F30021 means

Ground fault p. 300

Common causes

  • Power unit has detected a ground fault. p. 300
  • Ground fault in the power cables. p. 300
  • Winding fault or ground fault at the motor. p. 300

What to do

  1. Check the power cable connections. p. 300
  2. Check the motor. p. 300

Before you service the product, read the safety instructions in the manual p. 2.

If F30021 is still not resolved

  • Contact service / dealer for assistance p. 2
    “Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions.”
  • Contact service / dealer for assistance p. 13
    “NOTICE Property damage due to loose power connections Insufficient tightening torques or vibration can result in loose power connections. This can result in damage due to fire, device defects or malfunctions.”
Open the manual at page 300 All SINAMICS V90, SIMOTICS S-1FL6 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F30021; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.