HUAYUAN LG-125HA, Инструкция по эксплуатации

Страница: 17 / 20

11
3
、
Check if there is anything broken on connections, torch nozzles and electrodes;
4
、
Check if there are any connection faults on machine tools control signals,
5
、
Check if the ground cable is connected well;
6
、
Check if water in pressure regulating filter is discharged;
7
、
If the gas pressure indicator on panel is light off, check if the gas hose is connected well and check if the pressure is
normal;
8
、
If the over-heating indicator on panel light on, check the temperature relay;
9
、
Open the cover and check the fuse beside the controlling transformer;

Trouble shooting and repairing
Troubles/problems Possible reasons Trouble shooting
1
．
Turn power on, the
power indicator light
off, digital meter light
off
1
．
Default phase;
2
．
Switch of power supply damaged;
3
．
1.5A power controlling fuse
damaged;
1
．
Check the 3 phase power supply;
2
．
Change a new power switch;
3
．
Change a new power fuse;
2
．
No arc striking,
input fault indicator
lights on
1
．
Default phase;
2
．
Over voltage of under voltage;
Check the power supply voltage;
4
．
No arc striking or
arc stops when cutting,
the over-heating
indicator lights on
1
．
Environmental temperature is too
high;
2
．
The cooling fan is broken;
3
．
The temperature relay is damaged;
1
．
Stop the machine and rest for a while;
2
．
Check the power of fan or change a new
cooling fan;
3
．
Change a new temperature relay;
5
．
Machine Can not
start, gas pressure
indicator lights off
1
．
No gas pressure;
2
．
Gas pressure is too low;
1
．
Connect the gas supply;
2
．
Adjust the gas pressure;
6
．
No arc striking, gas
pressure indicator lights
on, input fault indicator
lights off, over-heating
indicator lights off
1
．
Poor connection of grounding cable;
2
．
The gas pressure is too high;
3
．
The torch nozzles and electrodes are
broken;
4
．
The torch is broken;
5
．
The nozzle contacts with the
workpiece;
1
．
Connect the ground cable well;
2
．
Lower the pressure;
3
．
Change nozzles and electrodes;
4
．
Change torch;
5
．
Lifting the torch to a proper 2~5mm
distance;
7
．
Poor cutting quality
1
．
Wrong gas pressure;
2
．
Too thick workpice plate;
3
．
The torch nozzles and electrodes are
broken;
4
．
The plasma arc is not vertical with
1
．
Adjust the gas pressure;
2
．
Choose a proper thickness to cut;
3
．
Change nozzles and electrodes;
4
．
Adjust the torch angle;