We have a KRC1 system that has been in operation for over 20 years, but recently we have been having problems with the drives disabling for no apparent reason, and mostly with no error messages besides "drives not enabled". When looking at the FE201 safety card, if relay #9 is lit and relay #14 is off, the drives seem to work fine. But whenever the opposite is true, something is stopping the drives from enabling in automatic mode. We can't tell if it's a problem with the Beckhoff modules, the MFC, the DSEAT, or the FE201, or something else.
Any help or places to start here would be greatly appreciated, as our company relies on this machine quite heavily. I've noticed many posts on here asking for log files - if those are needed, can someone advise how we can download those and provide them?
Thanks for your time!