Siemens SINAMICS V90, SIMOTICS S-1FL6 Error F7815: Power unit has been changed

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

Fault codeF7815

The power unit has been changed because the actual code number does not match the saved one. The manual's first action is: “Connect the original power unit and power up the Control Unit again (POWER ON).”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
Power unit has been changed (F7815)
Type
Fault code
Source
Manual p. 298

What F7815 means

Power unit has been changed p. 298

Common causes

  • The code number of the actual power unit does not match the saved number. p. 298

What to do

  1. Connect the original power unit and power up the Control Unit again (POWER ON). p. 298

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

If F7815 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 F7815; 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.