Siemens G120C Error 1000: Watchdog timer has expired.

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

Fault code1000

Watchdog timer has expired due to wiring issues or timer discrepancies on the Siemens G120C. The manual's first action is: “- PROFiSafe: Remove contact problems/faults at the PROFIBUS master/PROFINET controller.”

Model
Siemens G120C
Display shows
Watchdog timer has expired. (1000)
Type
Fault code
Source
Manual p. 677

What 1000 means

Watchdog timer has expired. p. 678

Common causes

  • - check the wiring of the F-DI (contact problems). p. 678
  • - check the discrepancy time, and if required, increase the value (p9650/p9850). p. 678

What to do

  1. - PROFiSafe: Remove contact problems/faults at the PROFIBUS master/PROFINET controller. p. 678

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

If 1000 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 677 All G120C error codes Manual details & download

This page summarises what the manufacturer’s manual says about 1000; 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.