36
11.2
Ordinary troubleshooting as following sheet:
Code
Trouble
Possible reasons
Solutions
/
When the power is
switched on, the
lamp and the digital
meter are not ON.
1.Three-phase power misses phase
2.Supply power switch is damaged
3.Power control fuse 3A is broken
1.Check three-phase power source
2.Change power switch
3.Change power control fuse
E80
Cannot start the
cutting,
the
gas
pressure
indicator
lamp is off
1
．
No gas pressure;
2
．
Gas pressure too low;
1
．
Connect the gas supply;
2
．
Adjust the gas pressure;
E81
Cannot start the
cutting, the water
flow indicator lamp
is off
1. No water flow;
2. Water flow is too low;
1. Connect the cooling water supply;
2. Check if the water flow is normal, the
water cooling flow should higher than
2.0L/min;
E82
No arc striking, and
the power supply
abnormal indicator
lamp is ON
1
．
Three-phase power default phase;
2. Three-phase power is overload
under voltage;
Check three-phase power source to ensure
the supply voltage accords with the supply
requirements.
E84
Cannot start the
machine
The plasma receive a protection order
from the intelligent water cooling
unit;
Check if the water cooling unit is
over-heating;
E85
/
The torch monitoring function is on,
and
the
nozzle,
electrode
consumption life is over;
”Cut off the power and change the
consumables, please refer to “7.6 torch
monitoring function”
/
3. No arc striking or
arc breaking during
cutting.
Overheat
indicator lamp is
ON.
1
．
The ambient temperature is too
high.
2
．
When cutting, cooling fan rotates
slowly or do not rotate, so the cooling
effect is weak.
3
．
Temperature relay is damaged
1
．
Let the cutter rest for a while, and will
come to work normally later.
2
．
Check fan power source or change cooling
fan
3
．
Change temperature relay
/
No
arc
striking,
cutting
indicator
lamp, gas pressure
lamp are ON, and
power
supply
abnormity indicator
lamp and overheat
lamp are not ON.
1
．
Cutting ground wire is not well
connected.
2
．
Gas pressure is too high.
3
．
Torch electrode and nozzle are
badly broken.
4
．
Torch electrode and arc striking
wire is short circuit, which cause the
damage of torch.
5. HF board is damaged.
1
．
Connect the cutting ground wire well
2
．
Lower the gas supply pressure
3
．
Change the electrode and nozzle
4
．
Change the torch
5. Change HF board
/
Bad cutting quality
1
．
Gas pressure is too high or too low.
2. The Air filter regulator cup is filled.
3
．
Work-piece is too thick
4
．
Torch electrode and nozzle are
broken
5
．
Plasma arc is not perpendicular to
the work-piece
6
．
Cutting speed is too fast or too slow
1
．
Adjust gas pressure
2. Water draining regularly
3
．
The thickness of work-piece should be
within the quality cutting range.
4
．
Change electrode and nozzle
5
．
Adjust torch angle
6
．
Adjust cutting speed
