Hello,
I recently swapped out CPU board on RJ2 controller with S420iW robot and wrote a few programs. Programs run in teach mode but when put into auto mode I clear the faults and press cycle start and nothing happens. I get a message on teach pendant with APSH-057 No Group Input. I can't seem to find anything obvious between this robot/controller and the other identical systems that are working. Is there a variable stuck somewhere or something? Any info is greatly appreciated. THANKS!