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Troubleshooting
Notice: Operation below requires operator should have sufficient specialized knowledge about electricity and complete
safety common sense.
Fault
Switch indicating lamp lights .Fan doesn't control button
is out of control.
Switch indicating lamp lights. Fan runs.
Press control button of cutting torch, solenoid valve in
the machine operates, there is no HF arc starting
discharge sound. And inside shines, indicator lights.
Switch indicating lamp lights
Fan nuns. After pressing control button of cutting torch,
solenoid valve in the machine operates, there 1s no HF
arc starting discharge sound. And inside shines in red
color, diode lamp doesn't light.
All is normal, but it doesn't start arc during cutting.
* The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice
unless these changes significantly affect the performance and safety of the products. The parts described / illustrated in the pages
of the manual of the purchased product may also refer to other models of the manufacturer's product range, with similar features,
other than the product you have purchased.
* Please note that our equipment has not been designed for use in commercial, trade or industrial applications. Our warranty will
be voided if the machine is used in commercial, trade or industrial businesses or for equivalent purposes.
* To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work,
including maintenance and special adjustments, must only be carried out by technicians of the authorized service department of
the manufacturer.
7
Solution
It is over-voltage protection.
Turn off the machine and stop for a while. Then turn on machine.
1. IGBT have been damaged (driver module has been damaged)
2. Boost electric transducer of motherboard has been damaged
3.Control module has been damaged.
Arc starting part has problem:
1.
The distance of electric discharge nozzle is too far away or edge is
sticking.
2.
Check whether primary coil of arc starting transformer is open
circuit or bad contact.
3.
Check whether voltage rectified diode is breakdown.
4.
Check whether HF capacitance 1s electric leakage.
5.
Relay is damaged.
1. Input voltage is low.
2. Pressure of air compressor is too large or small.
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