electricity integrated output terminal and the machine is loose.
The abnormal indicator light
is off, there is gas flowing out of
the torch mouth, and there is no
high-frequency discharge sound
in the machine.
1. Poor contact between the primary line of the arc-starting transformer
and the arc-starting plate and re-tighten.
2. The discharge nozzle is oxidized or the distance is remote. Treat the
oxide film on the surface of the discharge nozzle or adjust the distance
of the discharge nozzle to 1mm
about.
3. Individual components of the high-frequency arc starting circuit are
damaged, find and replace them.
Abnormal indicator light
without output
1. It may be over current protection, please turn off the machine, wait for
the abnormal indicator light to turn off and then restart to restore normal.
2. It may be overheating protection, and the machine can return to normal
without waiting for 2-3 minutes.
3. The inverter or arc board may be faulty:
Please unplug one of the power supply cords on the inverter board (near
the fan VH-
07 Plug-in) Restart:
If the abnormal indicator does not light, the fault is on this inverter
movement
(1) The indicator light is still on, turn off and unplug the power supply on
the arc board (close to the VH-03 plug of the fan)]
restart:
a. If the abnormal indicator is still on, it means that some IGBTs on the
inverter board are damaged. Find and replace the same type
IGBT.
b. If the abnormal indicator light is off, the fault is in the arc board, the
high voltage package is damaged, replace it.
(2) Plug in the power supply cable of the faulty inverter, and do not plug
in the power cable of the main transformer.
a. If the abnormal indicator does not light and the fault is on the middle
PCB, the transformer may be damaged, and the bridge can be used to
measure
Primary inductance and Q value of each main transformer
Primary inductance of main transformer and Q value L = 1.2-1.6Mh> 35
b. The middle plate rectifier tube may be damaged individually. Find and
replace the same type of rectifier tube.
4. The feedback circuit may be broken.
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Italia Star Com Due S.R.L.
www.italiastar.ro
004/021.433.03.27
35