AIRCUT
-101
I
,161
IW
,200
IW Inverter Plasma Cutting Machine
WARPP ENGINEERS PVT LTD
28
5
．
Plasma arc is not perpendicular
to the work-piece
6
．
Cutting speed is too fast or too
slow
7 Electrode and
nozzle work life is
very short.
1, Gas pressure is two low
2,Nozzle is too close to work-piece.
The distance is less than 2mm.
3. nozzle aperture is small, and not
matched with applied current.
4. electrode and nozzle is under
quality problem.
5. the torch bought by user himself
is under quality problem.
1
．
Adjust gas pressure
2
．
The distance should be within 2mm
to 5mm
3. selecta proper nozzle matched with
applied current.
4. change a good quality electrode and
nozzle.
5. buy a good quality torch.
8.no arc striking,
and
guiding
arc
spraying out, but
there
is
high
frequency.
1.
fast recovery diode of secondary
rectifying is damaged.
2.
current-limiting resistor R6,R7,R8
of guiding arc is damaged.
3.
high frequency leakage in cutter
output circuit.
1. change fast recovery diode under
same model.
2. check and change the damaged
current-limitingresistor of guiding arc.
3. check leakage point, and strengthen
insulation function.
9.supply power trips
1.
three
phases
rectifier
is
damaged.
2.
IGBT module is damaged.
3.
other
components
in
main
control circuit is damaged.
1.
change a three phases rectifier under
same model.
2.
change IGBT module under same
model.
3.
check and change the damaged
components.
