18
（
4
）
Power on the machine, set the function of the power source, select panel control, according to the electrode
procedure require, choose AC, DCEP or DCEN.
（
5
）
Adjust the parameter refer to following table
（
6
）
Start the machine
Work piece thickness
（
mm
）
≤3
4
～
5
6
～
12
≥13
Electrode dia.
（
mm
）
φ3.2
φ3.2
～
φ4
φ4
～
φ5
φ5
～
φ6
Welding current
（
A
）
60
～
120
90
～
120
120
～
250
250
～
400
7.3
For DC submerged arc welding machine
Wire dia.
（
mm
）
φ3.2
φ4.0
φ5.0
Welding current
（
A
）
400
～
800
450
～
900
500
～
900
Welding voltage
（
V
）
28
～
38
31
～
40
33
～
43
（
1
）
Power off, refer to 6.3 connect the machine
（
2
）
Power on the machine, set the function of the power source, select the function and set parameter on the panel,
choose the power source characteristics. Then according to the welding procedure choose the DCEP or DCEN, Finally
set the welding current, welding voltage, wire feed speed, wire dia. And characteristic at the remote control
terminal.
（
3
）
Start the machine
7.4
For AC submerged arc welding machine
（
1
）
Power off, refer to 6.3 connect the machine
（
2
）
Power on the machine, set the function of the power source, select the function and set parameter on the panel,
choose the power source characteristics, Choose the AC frequency(50Hz), set the remote control, wave balance
50
％
and DC deposition 50
％
. The increase of the AC frequency can increase the arc stability, DC deposition and
wave balance increase can increase the weld penetration, with same situation, will affection as following
（
a
）
（
b
）
（
c
）
shows. Finally set the welding current, welding voltage, wire feed speed, wire dia. And characteristic at the remote
control terminal. For tandem welding, the backward AC usage power source need to be less than the forward DC
usage power source( 100A less for reference)
（
a
）
AC frequency set: AC frequency increase, arc stability increase, weld with increase, weld penetration decrease.
