Siemens SINAMICS V90, SIMOTICS S-1FL6 Error F7995: Motor Identification failure

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

Fault codeF7995

Motor identification failed because pole position was not correctly detected during first servo-on or while running externally. The manual's first action is: “Stop the motor before servo on.”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
Motor Identification failure (F7995)
Type
Fault code
Source
Manual p. 298

What F7995 means

Motor Identification failure p. 298

Common causes

  • For incremental motor, needs pole position identification when the motor is servo on for the first time. If the motor already in run (i.e. by external force) position identification may fail. p. 298

What to do

  1. Stop the motor before servo on. p. 298

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

If F7995 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 F7995; 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.