Inspection item
90
PRECAUTIONS FOR MAINTENANCE AND INSPECTION
Oil component of the heat dissipation grease used inside the inverter may leak out. The oil component, however, is not flammable, corrosive, nor
conductive and is not harmful to humans. Wipe off such oil component.
It is recommended to install a voltage monitoring device for checking the voltage of the power supplied to the inverter.
One to two years of periodic inspection cycle is recommended. However, it differs according to the installation environment.
Consult us for periodic inspection.
• Continuous use of a leaked, deformed, or degraded smoothing aluminum electrolytic capacitor (as shown in the table above)
may lead to a burst, breakage or fire. Replace such a capacitor without delay.
Display
Indication
(1) Check that display is normal.
Contact the
manufacturer.
(2) Check for stain. Clean.
Meter Check that reading is normal.
Stop the equipment
and contact the
manufacturer.
Load
motor
Operation
check
Check for vibration and abnormal increase in
operation noise.
Stop the equipment
and contact the
manufacturer.
Waterproof
performance,
dustproof
performance
Operation
panel
(1) Check that it is installed.
Install it securely.
(Refer to page 54)
(2) Check for deformation or fracture.
Stop the equipment
and contact the
manufacturer.
(3) Check for loose fixing screws. Retighten.
Front cover
and wiring
cover
(1) Check that it is installed.
Install it securely.
(Refer to page 18, 30)
(2) Check for deformation or fracture.
Stop the equipment
and contact the
manufacturer.
(3) Check for loose fixing screws. Retighten.
Gasket
(1) Check for stain. Clean.
(2) Check for damage.
Stop the equipment
and contact the
manufacturer.
(3) Check for degradation (crack, discoloration, or
deformation).
Stop the equipment
and contact the
manufacturer.
Inside the
inverter
(1) Check for condensation.
Wipe off the
condensation.
(2) Check for ingress of water or dust.
Stop the equipment
and contact the
manufacturer.
Area of
inspection
Inspection
item
Description
Inspection
interval
Corrective action
at fault
occurrence
Check
by the
user
Daily
Periodic
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