MD500 User Manual 11. Maintenance
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may cause potential faults or reduce the service life of the AC drive. Therefore, it is necessary to carry out routine and periodic
maintenance.
More frequent inspection will be required if it is used in harsh environments, such as:
ƕ High ambient temperature
ƕ Frequent starting and stopping
ƕ Fluctuations in the AC power supply or load
ƕ Excessive vibrations or shock loading
ƕ Dust, metal dust, salt, sulfuric acid, chlorine atmospheres
ƕ Poor storage conditions.
Check the following items every day to avoid deterioration in performance or product failure. Copy this checklist and sign the
"checked" column after each inspection.
Inspection Item Inspection Points Solutions Checked
Motor Check whether abnormal
oscillation or noise exists.
Check the mechanical connection.
Check the power phases of the motor.
Tighten all loose screws.
Fan Check whether the cooling
fan of the AC drive and the
motor works abnormally.
Check the running of the cooling fan of the AC drive.
Check the running of the cooling fan of the AC drive.
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Check whether the ambient temperature
is within the allowable range.
Installation
environment
Check whether the cabinet and
cable duct are abnormal.
Check for the input and output cables with insulation damaged.
Check for vibration of hanging bracket.
Check for loose and corroded ground bard and connecting cables.
Load Check whether the drive output
current exceeds the drive rating
and motor rating for a time.
Check for setting of motor parameters.
Check for excessive load.
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Input voltage Check the main power supply
and the control voltage.
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Check for starting of heavy load.
11.2 Periodic Inspection
DANGER
To Prevent Electric Shock
ƕ Never perform the inspection work while the power is on.
ƕ Cut off all power supplies and wait for at least ten minutes before any checking work
so that the residual voltage on capacitors can discharge safely.
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especially metal powder on the surface of the AC drive, to prevent the dust from entering the drive. Clear the oil dirt from the
cooling fan of the AC drive.
Check the following items every day to avoid deterioration in performance or product failure. Copy this checklist and sign the
"checked" column after each inspection.
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