Siemens G120C Error F30662: Error in internal communications

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

Fault codeF30662

An internal communication error has occurred within the drive’s hardware or software system, requiring a reset via OFF2. The manual's first action is: “OFF2”

Model
Siemens G120C
Display shows
Error in internal communications (F30662)
Type
Fault code
Source
Manual p. 747

What F30662 means

Error in internal communications p. 747

Common causes

  • Hardware/software error (1) p. 747
  • POWER ON p. 747
  • A module-internal communication error has occurred. p. 747
  • Fault value (r0949, interpret hexadecimal): p. 747
  • Only for internal Siemens troubleshooting. p. 747

What to do

  1. OFF2 p. 747

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

If F30662 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 747 All G120C error codes Manual details & download

This page summarises what the manufacturer’s manual says about F30662; 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.