Hello! Try to replace a battery in a faulty monitor
If motors on delivery and feeder are the same, I would swap them too (as ashok kumar recommended here and on neighboring thread).
You said "If this problem occurs, the machine needs to be restarted. Otherwise, the error cannot be cleared." How often do you face this problem?...
I believe there must be an encoder or a hall sensors in this area. Try to replace it. To get more space you may need to unscrew a plugs terminals
Hello! If I were you, I would start with a brake. Maybe it is not releasing a shaft properly (there must be distinct clicking, as far as I...
Hello! I'm not 100% sure, but maybe you have a bad battery (and firmware was lost)