Troubleshooting; The Inverter - Promac 930VLB Instructions De Fonctionnement

10. Trouble shooting

10.1. The Inverter

Prior to operating all electronic parts, the following aspects should be taken into consideration first
Note: Only eligible and qualified personnel can make electronic adjustments
1. Disconnect machine from power supply.
2. Electronic parts are extremely sensitive, do not use hands or metal tools to remove or install such parts.
3. As remaining voltage still exists in the capacitor even after the electric current has been cut off, wait
until the light disappears from the lighted display completely before proceeding with any work to
prevent any accidents or hazards from occurring.
4. Pay close attention to the electronic circuit board so that they are free from any defects.
5. Never connect the alternating current directly to the output connector (U/V/W) of the speed adjuster.
The electronic self-diagnosis program can notify you of situations like motor overloading and too low or
too high voltage, etc. When the program detects an error, the machine will stop immediately and such
error will be displayed on the inverter's digital display. Follow the solutions to correct any errors. Close
the electrical cabinet and connect machine to power supply.
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