Siemens CU240B/E-2 Error F01655: SI P1: Align monitoring functions

Control unit · taken from the manufacturer’s manual, pages cited

Fault codeF01655

An error occurred when aligning the Safety Integrated monitoring functions on processor 1 and processor 2, as no common set of supported SI monitoring functions was determined. The manual's first action is: “- carry out a POWER ON (power off/on).”

Model
Siemens CU240B/E-2
Display shows
SI P1: Align monitoring functions (F01655)
Type
Fault code
Source
Manual p. 673

What F01655 means

SI P1: Align monitoring functions p. 673

Common causes

  • An error has occurred when aligning the Safety Integrated monitoring functions on processor 1 and processor 2. No common set of supported SI monitoring functions was able to be determined. p. 673
  • - there is a communication error between processor 1 and processor 2 or communication has failed. p. 673
  • Note: This results in a STOP A that cannot be acknowledged. p. 673
  • Fault value (r0949, interpret hexadecimal): p. 673
  • Only for internal Siemens troubleshooting. p. 673
  • Remedy: p. 673
  • - check the electrical cabinet design and cable routing for EMC compliance p. 673

What to do

  1. - carry out a POWER ON (power off/on). p. 673

If F01655 is still not resolved

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

Open the manual at page 673 All CU240B/E-2 error codes Manual details & download

This page summarises what the manufacturer’s manual says about F01655; 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.