User Manual

Version Number: ZS-CUT50DP-20210204A1
17
4. the power indicator lighting, the
fan works，HF spark while press
torch trigger but no air
blow out of torch head（or the air
keep blowing out）,The electric
valve not working.
1.The electric valve problem（it is
DC24V）
2.Maybe the air hose stuck.
3.The circuit for air valve control
problem.
1.Check it or replace it;
2.Check or replace;
3.Check it;
4.Change the board。
5.Power indicator lighting up，O.C
indicator not lighting，Fan works，
The gas blow out of torch after
pressure torch trigger ( gas valve
works)No HF，There is arc
between metal and electrode.
1.Arc striking coil loosen；
2.HF capacitor 102-10KV broken
1.Check if any wires loosen
2.Replace the HF capacitor.
6. Power indicator lighting up，Fan
works，Gas blow out of torch
while pressing trigger，O.C lighting
while pressing torch trigger
1.Diode problem；
2.IGBT problem；
1.Check every diode,replace it if
any damaged
2.Check every IGBT to see If any
one damaged ，Regisistor，Diode,
Replace it if any one damaged.
7. Power indicator lighting，Fan
works，Air can blow out of torch
head after press torch trigger，O.C
indicator not lighting, But it is
lighting up while cutting.
1.Circuit problem；Check IC3140 and
other components
1.Check the coil 5:5, fix it if any
wires loosen.
2.Replace the board.
Problems
Analysis
Solution
8. The cutting current can not be
adjust
1.The wires loosen or potentiometer
damaged。
2.The setting circuit problem.
1.Check the potentiometer if
middle pin to earth get 0~5V
voltage,Replace it if any damaged
2.Check if any wires loosen from
front board to main board
3.Boards problem
9.Machine auto shut down after
switch it on。
1.Maybe Power cable or circuit board
short circuit
2.Silicon bridge problem
1.Fix or replace it。
2.Check and replace it.
3.Replace silicon bridge。
10.After pressure torch trigger，
there is HF sound and spark, but
can not get arc start.
1.Welding torch broken or loosen or
Earth clamp and cable connecting not
good enough to the earth and
metal piece；
2.The connector for positive or
negative loosen.
1.Check them and fix；