Service manual

2 EXTERNAL COVER/CONTROL SECTION
2-9
DUPLO DF-755 86V-M12D0-0
2.2 Main Motor Control
2.2.1 Outline
M1
Main motor (M1)
USA: 120VAC/60Hz/60W
UK: 230VAC/50Hz/60W
2.2.2 Operations
1) The microcomputer controls the AC motor relay in the MC unit.
2) When the AC motor locks during operations for some reason, the microcomputer detects
it and shuts down the relay to interrupt electrical supply.
3) When the microcomputer cannot detect the lock of the AC motor, the thermal protector
equipped with the AC motor automatically stops the operations. When the power is
turned on, the machine returns to normal.