Inovance MD280NT2.2GB - Page 26

MD280 User Manual Product Information
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WARNING
Do not repair or maintain the AC drive immediately after power-off because there is still voltage
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measured by the multimeter is lower than 36 V.
Routine maintenance involves checking:
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Whether the installation environment of the AC drive changes
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Whether the cooling fan works properly
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Whether the AC drive overheats
Routine cleaning involves:
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Keeping the AC drive clean all the time.
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Removing the dust, especially metal powder, from the surface of the AC drive, to prevent
the dust from entering the AC drive.
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Clearing the oil stain on the cooling fan of the AC drive.
2.6.2 Periodic Inspection
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inspection involves:
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Checking whether the screws become loose.
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Checking whether the AC drive is corroded.
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Checking whether the wiring terminals have arc signs.
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Carrying out the main circuit insulation test.
Note
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disconnect the main circuit from the AC drive. Do not use the insulating resistance meter to test
the insulation of the control circuit. The high voltage test need not be performed again because it
has been completed before delivery.
2.6.3 Replacement of Vulnerable Components
Vulnerable components of the AC drive include the cooling fan and filter electrolytic
capacitor. Their service life is related to the operating environment and maintenance.
The service life of the two components is listed in the following table.
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