PART III
IMPORTANT PARTS - INTERLOCK SWITCH
E-17
INTERLOCK SWITCH
1
1
2
2
1. Unscrew 2 screws on the
interlock switch adjustor plate.
2. Remove the interlock switch.
3. Remove 4 wire plugs from the
interlock switch.
(1) Black Live wire from the power cord socket to
main circuit board through interlock switch.
(2) Neutral line from the power cord socket to main
circuit board through interlock switch.
When the interlock switch is broken or any wires are
loosened, the unit has no power.
Power cord socket
Replace interlock switch
The interlock switch is rarely broken. If the unit has no power and you confirm that the interlock switch is problem, you will
follow the below steps to dismantle the interlock switch and do the reverse operation to replace a new one. Make sure all the
black Live line and white Neutral wire are connected correctly before starting the unit.
Interlock switch
Interlock switch
adjustor
The interlock switch is provided with a lever which can be actuated by the actuator on the front panel. The interlock switch opens
all supply conductors simultaneously when opening the front panel for servicing. When the front panel is closed the actuator
pushes down the interlock switch levers and the unit will operate. When the front panel is opened the levers will be spring out
and interrupt the Live line and Neutral wire at the same time to stop the operation. The purpose of the interlock system is to
interrupt the operation of the unit when the front panel is opened by accident, and similarly, to prevent any operation until the
front panel is firmly and safely closed.
ENGLISH
