
80
Trouble shooting
Turn the machine’s wall switch off and on again.
Start a program.
Error code returns
No error code
Check the motor control unit input voltage
(120/230 V) at connector X311.
Voltage too high.
Voltage OK.
38E
Motor control unit indicating
DC voltage level too high.
Error codes which may arise on the control panel display
Transient fault. No action
required.
Fault in motor control unit.
Replace unit.
1
8
Investigate cause of fault in
power supply beyond the
machine.
3333
Error code/symptoms
Fault-finding
Cause/Action
X311