CV3100 series and MINI series high performance general purpose inverter instruction manual
8-1
Chapter 8 Maintenance
8.1 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.
8.1.1
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.
8.2 Regular maintenance
8.2.1 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 8-1.
Table 8-1
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