Riland CUT 100GT, Руководство пользователя, Страница: 19 / 20

19
TROUBLESHOOTING AND FAULT FINDING
Fault symptom and solutions
Faults Solutions
Meter cannot display, fan
cannot run.
1. Make sure air switch is on.
2. Power source of input cable has electricity.
3. Make sure power source not lack of phase.
Meter is normal, fan is normal,
Plasma cutting torch switch
cannot work
1. Check if cable is loosen.
2. Control wire of gun broken or switch broken.
3. Control circuit is broken ( Contact factory
）
4. Confirm power lost phase or not.
Abnormal indicator is lit, meter
is normal, fan is normal
1. High-pressure device is broken.
2. IGBT is broken.
3. Rectifier broken.
4. Control board is broken.
5. Feeding circuit broken (abnormal indicator lit), contact
factory.
Meter is normal, fan is normally
working, electromagnetic valve
is abnormal, no arc output,
abnormal indicator is not lit.
1. Arcing part has problem.
2. Electricity-releasing nozzle is too far away.
3. High-pressure device is broken.
4. Relay is broken.
5. Control circuit broken.
Air switch cannot close.
1. Air switch quality is poor.
2. Three phase rectifying bridge is broken.
3. Check if any short circuit inside.
If after checking and adjustment it still cannot work normally, please contact the local distributor or
our service center.
Notes: The following operations must be performed by qualified electricians with valid
certifications. Before maintenance,please contact with us for professional suggestion.