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10. MAINTENANCE AND FAILURE ELIMINATE
Maintenance and inspect regularly, which can make your
inverter keep working for long period in right status.
10-1 Attention points of maintenance and inspection
1. During the maintenance and inspection, please turn off the power
supply of your inverter (R.S.T.)
2. Make sure the power supply of your inverter(R.S.T.) is off. After
the light/brightness has disappeared on the screen, recheck and
make the internal guiding light is off, thus, maintaining and in-
specting can be done. (Warning : 50V Direct-Current Voltage still
remained after the light/brightness is off on the screen)
3. Do not pull-off, take-off or error match of the internal power,
filament(wire) material or (wire) circuit while installation or take-off
the connection. Otherwise it will cause the damage or unmovem-
ent of the inverter (R.S.T.).
4. Power input must be put in the right position while installation.
5. The accessories such as screws, etc, cannot be left inside of the
inverter in case of the damage of PC board.
6. Please remain cleanness of inverter, after installation, to avoid
dust, oil-gas and moist.
10-2 Regular checking items
1. Make sure the power supply of the voltage is right for the
inverter. Especially attent any damage of power-cords or motor-
cords).
2. Make sure there do not have any loose of terminal and con-
nection. (Whether there will be any broken wires between power-
cord and terminal.)
3. Whether there have any dust, dirt, iron filing or any corrosiveness
liquid inside of inverter. (Make sure to prevent it and keep R.S.T.
clean.)
4. Measurement on insulation resistance is prohibited.
5. Check the output voltage, output current and output frequency.
6. Temperature : check ambient, inverter, and motor temperature to
see any unusual temperature happened.
7. Moisture : remaining under 90%. (Water-dropping situation will not
be allowed.)
8. Unusual sound or extraordinary vibration during operation. (Do not
place inverter on vibration areas.)
9. Regular cleaning for vent hole.
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