6
1
Output cable
2
Rubber sleeve
3
Copper sleeve
4
Bolt
1
2
3
5
4
5
Copper connector
2. INSTALLATION AND CONNECTION
2.1 Installation requirements
In order to ensure personal safety and avoid electric shock, please ground the machine reliably
by connecting the ground wire (yellow-green wire) of the machine to the grounding device in
the switching box.
Insert the plugs with the cable of the electrode holder and the cable of the earth clamp respectively
into the quick sockets on the front panel of the machine, and tighten them to clockwise.
Operator can choose DCEN connection according to workpiece and electrode application
requirement. Generally, DCEP connection is recommended for basic electrode, while there is
no special requirement for acid electrode.
DCEN: Connect the electrode holder to “-” output
terminal, and the workpiece to “+” output terminal.
DCEP: Connect the electrode holder to “+” output
terminal, and the work clamp to “-” output terminal.
Figure 2-1:
Connection of output cable
Figure 2-2: Connection of quick plug
1
)
Connection of input cable
A primary power supply cable is available for this welding machine. Connect the power supply
cable to the rated input power. The primary cable should be tightly connected to the correct
socket to avoid oxidization. Check whether the voltage value varies in acceptable range with a
multi-meter.
The cross section of the leads used in the switching box should meet the requirements of the
maximum input capacity of the machine.
2
)
Connection of output cable
3
)
Connection of welding instruments
4
1
2
3
5
1
2
4
3
5
1
Output cable
2
Rubber sleeve
3
Copper sleeve
4
Bolt
5
Electrode holder
Figure 2-3: Connection of electrode holder
1
Output cable
2
Copper clip
3
Bolt
4
Nut
5
Iron clip
Figure 2-4: Connection of earth clamp
2. I
N
S
TA
LL
A
TI
O
N
A
N
D C
O
N
N
E
C
TI
O
N
Содержание Arc 140
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