Product Information MD280/MD280N User Manual
⊼ᛣ
Caution
⊼ᛣ
Caution
The repair or maintenance can be conducted only after the charge LED
is OFF and the bus voltage is measured to be less than 36V with
multimeter.
Routine inspection items include:
1) Whether there is any abnormal change in the running
sound of the motor
2) Whether the motor has vibration during the running
3) Whether there is any change to the installation
environment of the inverter
4) Whether the inverter cooling fan works normally
5) Whether the inverter has over temperature
Routine cleaning:
The inverter shall be kept clean.
The dust on the surface of the inverter shall be effectively removed, so as
to prevent the dust falling into the inverter, especially the metal dust.
The oil stain on the inverter cooling fan shall be effectively removed.
2.7.2 Periodical inspection
Please perform periodic inspection on the places where the inspection is a
difficult thing.
Periodic inspection Items include:
1) Check and clean the air duct periodically;
2) Check if the screws are loosened;
3) Check if the inverter is corroded;
4) Check if the wire connector has arc signs;
5) Main circuit insulation test.
Reminder: When using the megameter (DC 500V megameter
recommended) to measure the insulating resistance, the main circuit shall
be disconnected with the inverter. Do not use the insulating resistance
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