10
pipe, and tighten it. Connect the copper tip marked with “Backwater” with water recycle
pipe, and tighten it.
Notes: when use air cooling torch, the torch selection switch on panel must be set to
air-cooled torch position, and the cooling water cannot be connected. The cooling
water is for cooling torch only, and cutter power source does not need water cooling.
6.7
The connection of output terminal
The connection of the torch
1)
Connectors instruction
The pilot arc: to connect the arc striking wire of the torch;
Control: Pin 1 and 2 is start control, to connect the control switch of the torch.
Pin 3 and 4 is water cooling/air cooling. When use air cooling torch, short
connect the pin 3 and 4, when use water cooling torch, don’t connect the pin 3
and 4;
Air & Current output: the negative output connector of the machine is the
plasma gas output connector, the connector thread is M14×1.5;
Water & Current output: the negative output connector of the machine is the
cooling water output connector, to connect the water inlet of the water cooling
torch, the connector thread is M16×1.5;
Water Return & Current: the negative output connector of the machine is the
cooling water return connector, to connect the return water of the water
cooling torch, the connector thread is M16×1.5 (laevorotation);
Pic 8 The connectors of torch
2)
The connection of air cooling torch (Please refer to the Pic 8 as above)
Firstly connect the torch air inlet cable connector with the copper tip marked with
