Have a robot cell that has been running for years that is an LRMate 200iD/7L on a R-30iB controller. Recently the robot can be running for 1 hour or 8 hours and then the motion just stops. When I go to the pendant to monitor the program or check for errors, pressing a key lights up the screen but it is frozen and no buttons are responsive. A power cycle will allow it to run again for some time again before freezing.
I have tried searching these forums and it seems every post with non responsive pendant has gone unanswered.
I contacted Fanuc and they told me to look at the mainboard lights. Are those applicable past startup?