Mitsubishi Electric FR-F820-00077 Instruction Manual page 857

Precautions for maintenance and inspection
Area of in-
Inspection item
spection
Cooling fan
Cooling
system
Heatsink
Indication
Display
Meter
Load
Operation check
motor
Tab. 7-1: Daily and periodic inspection (2)
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.
CAUTION:
E
Continuous use of a leaked, deformed, or degraded smoothing aluminium electrolytic capacitor
(as shown in the table above) may lead to a burst, breakage or fire. Replace such a capacitor
without delay.
FR-F800
Description
(1) Check for unusual vibration and noise.
(2) Check for loose screws and bolts.
(3) Check for stain.
(1) Check for clogging.
(2) Check for stain.
(1) Check that display is normal.
(2) Check for stain.
Check that reading is normal.
Check for vibration and abnormal increase in
operation noise.
Inspection
interval
Corrective action at
fault occurrence
Replace the fan.
Fix with the fan cover
fixing screws
Clean.
Clean.
Clean.
Contact the
manufacturer.
Clean.
Stop the equipment and
contact the
manufacturer.
Stop the equipment and
contact the
manufacturer.
Inspection item
Check by
the user
7 - 3