GT200 series general purpose inverter instruction manual
Chapter 6 Maintenance
6.1 Maintenance
In case of change of service environment for inverter, such as temperature, humidity,
smog and aging of inverter internal parts, the inverter fault may occur. Therefore, the inverter
must be examined daily and given the regular maintenance in period of storing and using.
6.1.1
Daily maintenance
When the inverter is turned on normally, please make sure the following items:
（
1
）
Whether the motor has abnormal noise and vibration.
（
2
）
Whether inverter and motor heat or occur abnormity.
（
3
）
Whether environment temperature is too high.
（
4
）
Whether the value of load ammeter is in conformity with the former.
（
5
）
Whether the fan of inverter rotates normally.
6.2 Regular maintenance
6.2.1 Regular maintenance
Before the inverter is maintained and checked, the power supply must be cut off, in
addition, the monitor shall have no display and main circuit power indicator lamp goes out.
The examined content is shown as table 6-1.
Table 6-1
Regular examined contents
Item
Content
Solution
Screw of main circuit
terminal and control
circuit terminal
Whether the screw is slack
Tightened by screwdrive
Heat sink
Whether there is dust on it
Blow it away with the dry
compressed air of 4-6kg/cm
2
Pressure
PCB(printed circuit
board)
Whether there is dust or
vapor on it
Clean the surface of PCB
board
Fan
Whether it runs normally
and makes abnomal sound
or vibration ,and whether the
accumuiated time runs up to
more than 20000 hours
Change the fan
Power unit
Whether there is dust on it
Clear the foreign matter
Aluminum electrolytic
capacitor
Whether it has color
change,peculiar
smell,bubbing,liquid leakge
Changed Aluminum
electrolytic capacitor
6.2.2 Regular maintenance
In order to make the inverter run normally for a long time, the electronic elements
mounted in inverter shall be maintained regularly. And the service life of electronic elements
is different with the service environment and service condition. The maintenance period of
inverter as shown in the table 6-2 is provided for referring.
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