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[1] MAIN BREAKER (WITH A LEAK DETECTOR)
• Make sure the breaker is OFF when this machine derives no power from power supply
equipment and when work is completed.
• Abnormal conditions are encountered around the Inverter unit, electric motor, or electric
wiring when the breaker is automatically turned OFF during operation. Be sure to locate
failures and check for burnt smell and parts. Promptly contact us or our sales service agency
to request inspection and repair.
• Inspection and repair must be completed before turning ON the breaker to re-supply power.
Potential fire or machine failure may occur if disregarded.
The main breaker is equipped with the parts shown at the right.
• The breaker (1) is designed to provide automatic shutoff of the
power that is supplied from the Inverter unit to the electric motor
in the event of an error including overcorrect and overvoltage, to
prevent fire and machine failure.
The breaker (1) also controls the supply of power to the electric
motor and Inverter unit.
• ON : Power is supplied.
• OFF: No power is supplied.
• The overvoltage/ground-fault indication button (2) on the cover is
designed to eject in the event of an overvoltage or ground fault.
For reset, press the breaker to turn the ON.
• The trip button (3) is designed to mechanically trip the breaker as
external control.
• The ground-fault test button (4) is used to test tripping in
response to a ground fault.
Proper tripping is assured if the overvoltage/ground-fault
indication button (2) on the cover ejects.
CAUTION
Periodic (biannual) ground fault test is recommended.
The test button should be controlled at 10-second or longer
intervals and not be pressed more than requires.
If an indication of a ground fault remains on after the
overvoltage/ground-fault indication button (2) is reset,
contact us or our sales service agency to request
inspection and repair.
(1) Breaker
(2) Overvoltage/ground-fault
indication button (yellow)
(3) Trip button (red)
(4) Ground-fault test button
(gray)
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