Siemens MICROMASTER 420 Error A0600: RTOS Overrun Warning

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

Warning codeA0600

RTOS Overrun Warning indicates a software error in the real-time operating system. The manual lists no action for this code.

Model
Siemens MICROMASTER 420
Display shows
RTOS Overrun Warning (A0600)
Type
Warning code
Source
Manual p. 72

What A0600 means

RTOS Overrun Warning p. 72

Common causes

Safety warnings — read before you start

  • DANGERDANGER. indicates an immiently hazardous situation which, if not avoided, will result in death or serious injury. p. 6

If A0600 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.

This page summarises what the manufacturer’s manual says about A0600; 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.