Maintenance and Inspection
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Item Content Solution Checked
Load Check whether the operating
current of the drive exceeds the
rated current of the drive and
motor.
● Check for settings of motor parameters.
● Check whether the motor is overloaded.
● Check whether the mechanical vibration
is too strong (< 0.6 g under normal
conditions).
Input voltage Check whether the power supply
voltage between the main circuit
and control circuit is normal.
● Check whether the input voltage is within
the permissible range.
● Check whether a heavy load is being
started around the drive.
7.1.2 Regular Checklist
Check the items listed in the following table every one or two years. Determine the
actual inspection cycle based on actual application and operating environment.
Regular maintenance helps detect product function deterioration and damage.
Make a copy of the following checklist and sign the "Checked" column after each
inspection.
Do not perform inspection or connection work with power on. Failure to do so may result in
an electric shock. Cut off the power supplies of all equipment before wiring or repair. Wait
for at least the time designated on the equipment warning label before further operations
because residual voltage still exists after power‑off. After waiting for the designated time,
measure the DC voltage in the main circuit to ensure the DC voltage is within the safety volt‑
age range. Failure to do so may result in an electric shock.
Item Content Solution Checked
AC drive Check for wastes, dirt and dust on the
surface of the AC drive.
● Check whether the controller
cabinet has been powered off.
● Use a vacuum cleaner to suck
up waste and dust to prevent
direct contact with the
components.
● For stubborn surface dirt, wipe
up the dirt with a piece of soft
cloth immersed in alcohol.
Cables
● Check whether power cables and the
connectors are discolored.
● Check whether the insulation is aged
or cracked.
● Replace the cracked cable.
● Replace the aged or cracked
terminal.
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