Siemens G120C Error F01120: Terminal initialization has failed

Siemens G120C drive · taken from the manufacturer’s manual, pages cited

Fault codeF01120

An internal software error occurred while initializing terminal functions on the Siemens G120C. The manual's first action is: “- carry out a POWER ON (switch-off/switch-on) for all components.”

Model
Siemens G120C
Display shows
Terminal initialization has failed (F01120)
Type
Fault code
Source
Manual p. 671

What F01120 means

Terminal initialization has failed p. 671

Common causes

  • An internal software error occurred while the terminal functions were being initialized. p. 671
  • Fault value (r0949, interpret hexadecimal): p. 671

What to do

  1. - carry out a POWER ON (switch-off/switch-on) for all components. p. 671
  2. Only for internal Siemens troubleshooting. p. 671

Before you service the product, read the safety instructions in the manual p. 4.

If F01120 is still not resolved

  • contact service / dealer p. 4
    “Warning concept This Manual contains information which you must observe to ensure your own personal safety as well as to avoid material damage.”
  • contact service / dealer p. 12
    “WARNING Danger to life if the safety instructions and residual risks are not observed”
Open the manual at page 671 All G120C error codes Manual details & download

This page summarises what the manufacturer’s manual says about F01120; 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.