Siemens SINAMICS V90, SIMOTICS S-1FL6 Error 7: Ground fault/inter-phase short-circuit detected

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

Fault code7

A ground fault or inter-phase short-circuit was detected in the power cables or motor windings. The manual's first action is: “Check the power cables (connection). Check the motor.”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
Ground fault/inter-phase short-circuit detected (7)
Type
Fault code
Source
Manual p. 284

What 7 means

Ground fault/inter-phase short-circuit detected p. 284

Common causes

  • A ground fault/inter-phase short-circuit was detected in the power cables or in the motor windings. p. 284

What to do

  1. Check the power cables (connection). Check the motor. p. 284

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

If 7 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.”

This page summarises what the manufacturer’s manual says about 7; 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.