How can we help you today?

Why do I face 3 red leds on warm restart on my BMEP582040S

When power cycling an M580 Safety CPU rack, the PLC reboots, but both CPU and Coprocessor freeze with 3 solid red leds (ERR , ERR MS and ERR NS), then power cycling again the CPU rack leads to a Noconf state.

BMEP58x040S SV 3.10

Control Expert 14.1

This issue is diagnosed as a promptness problem of the Coprocessor boot time.

Some enhancement have been introduced as part of the Firmware SV 3.20 to reduce the boot duration of the Coprocessor. They are not mentioned in the Firmware History, but solve this particular case.

Schneider Electric Canada

Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more

Need help?

Need help?

Product Selector

Product Selector

Quickly and easily find the right products and accessories for your applications.

Get a Quote

Get a Quote

Start your sales inquiry online and en expert will connect with you.

Where to buy?

Where to buy?

Easily find the nearest Schneider Electric distributor in your location.

Help Center

Help Center

Find support resources for all your needs, in one place.

  • Help and Contact Center
  • Contact Sales
  • Find our Offices
  • Where to Buy
  • Careers
  • Company Profile
  • Investors
  • Newsroom
  • Report a Misconduct
  • Product Documentation
  • Product Selectors
  • Software and Firmware
  • Product Substitution and Replacement
  • Blog
  • Events
  • Schneider Electric Community
  • Sustainability
  • Legal Information
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings