Chapter 8 Maintenance
GK600 User Manual
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Inspection items
Measures
Check if drive mounting screws are loose
Tighten
Check if there are defect on power cables and control
cables
Replace the cables
Check if there is dust on circuit board
Clear it up
Check if air duct is blocked
Clear it up
Check if drive insulation is failed
Test the ground terminal with
500V megameter after all input
and output terminals are
short-circuited via conductors.
Ground test on individual
terminals is strictly prohibited
since this may cause damage to
inverter.
Check if motor insulation is failed
Remove input terminals U/V/W of
motor from drive and test the
motor
alone
with
500V
megameter. Failure to comply
may result in drive failure.
Check if the storage period of the drive is over two
years
Carry out power-on test, during
which, the voltage should be
boosted to rated value gradually
using a voltage regulator; be
sure to run at no load for more
than 5 hours.
8.3 Replacement of Vulnerable Parts
Vulnerable parts of drive include cooling fan, electrolytic capacitor, relay or contactor etc. The
service lives of these parts are subject to environment and working conditions. To maintain a
favorable operating environment is conducive to improving the service life of parts and
components; routine inspection and maintenance also contributes to effective improvement of
parts' service life. To prolong the service life of entire drive, the cooling fan, electrolytic
capacitor, relay or contactor and other vulnerable parts should be subjected to routine
inspection according to the table below. Please replace the abnormal parts (if any) in time.
