5
2.
Air pressure indicator lamp
：
It is ON when the pressure of compressed air exceeds 0.2Mpa. It is OFF when the pressure is
less than 0.15Mpa.
3.
Power supply abnormality indicator lamp: It is ON when power supply is more than 440VAC or less than 300VAC
；
4.
Overload indicator lamp: It is ON when the cutter is over loaded (generally it is on when cooling fan is damaged.)
5.
Gas control selection switch: When it switches to Check air, gas valve opens to test gas flux. When it switches to Cutting,
the gas valve opens during cutting automatically.
6.
Cutting current adjusting knob: Adjusting cutting current
；
7.
Cutting ground wire outlet: To connect cutting ground wire
；
8.
Torch control outlet: To connect torch control signal wire;
9.
Air & Power output terminal: the current output terminal is also the compressed air output terminal. It is gas pipe
connector to connect water-cooled torch when the water-cooled torch is used, and it is connector to connect torch
air-cooled cable when air-cooled torch is used.
10.
Power source switch: Control the ON/OFF of 3-phase power supply of cutter.
；
11.
Power source line
：
For connecting 3-phase power supply. The green-yellow line is used for protecting ground line, and it
must be connected to the ground firmly
；
12.
Air pressure regulation filter
：
For adjusting work pressure of compressed air and filtrating water from air.
7
Protection function of the cutter
Air pressure protection
1.
When the indicated value of the pressure meter, which is fixed on the back of the cutter, is lower than 0.2 MPa, the
protection circuit starts working and the cutter cannot start.
2.
When the indicated value is lower than 0.15 MPa during cutting, the cutting arc will extinguish.
Note: When adjust the air pressure, the panel function must be set to Check air.
Over load protection
When the ambient temperature is too high or the cooling fan is broken, the cutter will be over heated under the rated
current, and heat protection circuit starts working, the cutting arc will extinguish automatically.
Power supply abnormal protection
1.
When the 3 phase power supply is higher than 440VAC, protection circuit starts working and there will be no arc striking.
2.
When the 3 phrase power supply is lower than 300VAC, protection circuit starts working and there will be no arc striking.
8
Installation and Operation
1.
Transport and Lift
Power source should be shut off before moving the cutter.
The cutter bottom should be kept downwards during transportation. It is forbidden to have cutter placed
transversely or upended.
When lifting, it must be lifted vertically.
During the long-distance transportation, it must prevent the cutter from raining and moving back and forth inside
box. Shock absorption foam should be placed around cutter.
2.
Installation and Connection
A . Power source should be shut off before installation and connection.
B. Installation environment details refers to the point “Work Environment Requirements”.
