Siemens MICROMASTER 420 Error F0051: Parameter EEPROM Fault

Siemens MICROMASTER 420 inverter · taken from the manufacturer’s manual, pages cited

Fault codeF0051

Parameter EEPROM Fault indicates failure to read or write non-volatile parameter storage. The manual's first action is: “1. Factory reset and new parameterization 2. Change inverter”

Model
Siemens MICROMASTER 420
Display shows
Parameter EEPROM Fault (F0051)
Type
Fault code
Source
Manual p. 71

What F0051 means

Parameter EEPROM Fault p. 71

Common causes

  • Reading or writing of the non-volatile parameter storage has failed p. 71

What to do

  1. 1. Factory reset and new parameterization 2. Change inverter p. 71

Before you service the product, read the safety instructions in the manual p. 6.

If F0051 is still not resolved

  • 1. Factory reset and new parameterization 2. Change inverter p. 71
    “1. Factory reset and new parameterization 2. Change inverter”
Open the manual at page 71 All MICROMASTER 420 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F0051; 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.