iWeld 800TIG3200ACDCMW, User Manual

Page: 87 / 98

HU
EN
4. Installation & Operation for MMA welding
4.1 Set up and installation for MMA Welding
Connection of Output Cables
Two sockets are available on this welding machine. For MMA welding the electrode holder is
shown be connected to the positive socket, while the earth lead (work piece) is connected to
the negative socket, this is known as DCEP. However various electrodes require a different polar-
ity for optimum results and careful attention should be paid to the polarity, refer to the electrode
manufacturer's information for the correct polarity.
DCEP : Electrode connected to “+” output socket.
DCEN : Electrode connected to “-” output socket.
MMA (DC): Choosing the connection of DCEN or DCEP according to the different electrodes.
Please refer to the electrode manual.
MMA (AC): No requirements for polarity connection.
(1) Connect the earth lead to “-”, tighten clockwise;
(2) Connect the earth clamp to the work piece. Contact with the work piece must be firm
contact with clean, bare metal, with no corrosion, paint or scale at the contact point.
(3) Connect the electrode lead to “+”, tighten clockwise;
(4) Each machine is equipped with a power cable should be based on the input voltage
welding cable connected to the appropriate position, not to pick the wrong voltage;
(5) With the corresponding input power supply terminal or socket good contact and prevent
oxidation;
(6) With a multimeter measure the input voltage is within the fluctuation range;
(7) The power ground is well grounded.
Welding mode
Trigger mode
Pre-gas
time
Pre
current
Up slope
time
Peak current
Base
current
Pulse
frequency
Pulse width
Down
slope time
Post
current
Post-gas
time
Spot time
Arc force
Hot-start
AC Freq.
Balance
MMA
No
×
×
×
10~max
×
×
×
×
×
×
×
0~10
0~10
×
×
DC TIG
2T
0.1~2s
10~max
0~10s
10~max
×
×
×
0~10s
10~ P_C
0~10s
×
×
×
×
×
4T
0.1~2s
10~max
0~10s
10~max
×
×
×
0~10s
10~ P_C
0~10s
×
×
×
×
×
Spot
welding
0.1~2s
×
×
10~max
×
×
×
×
×
0~10s
On:
0.1~1s,
Off: 0~10s
×
×
×
×
DC Pulse
TIG
2T
0.1~2s
10~max
0~10s
10~max
10~max
0.5~999Hz
5~95%
0~10s
10~P_C
0~10s
×
×
×
×
×
4T
0.1~2s
10~max
0~10s
10~max
10~max
0.5~999Hz
5~95%
0~10s
10~P_C
0~10s
×
×
×
×
×
Spot
welding
0.1~2s
×
×
10~max
×
×
×
×
×
×
On:
0.1~1s,
Off: 0~10s
×
×
×
×
AC TIG
2T
0.1~2s
10~max
0~10s
10~max
×
×
×
0~10s
10~ P_C
0~10s
×
×
×
50~250Hz
~5~+5
4T
0.1~2s
10~max
0~10s
10~max
×
×
×
0~10s
10~ P_C
0~10s
×
×
×
50~250Hz
~5~+5
AC Pulse
TIG
2T
0.1~2s
10~max
0~10s
10~max
10~max
0.5~999Hz
5~95%
0~10s
10~ P_C
0~10s
×
×
×
50~250Hz
~5~+5
4T
0.1~2s
10~max
0~10s
10~max
10~max
0.5~999Hz
5~95%
0~10s
10~ P_C
0~10s
×
×
×
50~250Hz
~5~+5
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