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Maintenance
6
Maintenance
6.1 Routine Maintenance
Check the following items daily to ensure normal running and prevent damage to the
AC drive. Copy this checklist and sign the "Checked" column after each inspection.
Inspection
Item
Inspection Points
Solutions
Checked
Motor
Inspect whether the
abnormal sounds and
vibration occur on the
motor.
◆
Check whether the mechanical
connection is normal.
◆
Check whether output phase loss
occurs on the motor.
◆
Check whether retaining screws of the
motor are tightened.
Fan
Inspect whether the
cooling fan of the AC
drive and motor work
abnormally.
◆
Check running of the cooling fan of the
AC drive.
◆
Check whether the cooling fan of the
motor is normal.
◆
Check whether the ventilation is
clogged.
◆
Check whether the ambient
temperature is within the permissible
range.
Installation
environment
Inspect whether the
cabinet and cable duct are
abnormal.
◆
Check input and output cables for
damaged insulation.
◆
Check for vibration of hanging bracket.
◆
Check whether ground bars and
terminals become loose or get
corroded.
Load
Inspect whether the
running current of the AC
drive exceeds the rated
current of the AC drive and
motor for a certain period.
◆
Check whether motor parameters are
set properly.
◆
Check whether the motor is overloaded.
◆
Check whether the mechanical
vibration is severe (allowed range: < 1
g).
Input voltage
Inspect whether the power
voltage of the main and
control circuits is within
the allowed range.
◆
Check that the input voltage is within
the allowed range.
◆
Check whether start of heavy load
exists.