5 OPERATION
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© ESAB AB 2021
5.11 Setup for MIG (FCAW) welding with flux core
(gasless) wire
1) Select MIG mode with the process selection control see " Firepower MST-200, Firepower FP-
200 controls, indicators and features" section.
2) Connect the MIG polarity lead to the negative welding terminal (-). If in doubt, consult the
electrode wire manufacturer. Welding current flows from the power source via dinse type
terminals. It is essential, however, that the male plug is inserted and turned securely to
achieve a sound electrical connection.
3) Connect the work lead to the positive welding terminal (+). If in doubt, consult the electrode
wire manufacturer. Welding current flows from the power source via dinse type terminals. It is
essential, however, that the male plug is inserted and turned securely to achieve a sound
electrical connection.
4) Refer to the weld guide located on the inside of the wire feed compartment door for further
information.
5) Switch the LOCAL/REMOTE switch inside the wire feed compartment to LOCAL to use the
wire speed and voltage controls of the power source. If there is no switch, it is software
controlled.
6) Switch the MIG gun/spool gun switch inside the wire feed compartment to MIG gun. If there is
no switch, it is software controlled.
WARNING!
Before connecting the work clamp to the workpiece make sure the electricity supply
is switched off.
CAUTION!
Remove any packaging material prior to use. Do not block the air vents at the front
or rear of the welding power source.
Loose welding terminal connections can cause overheating and result in the male
plug being fused in the terminal.
Figure 34: Setup for MIG welding with gasless MIG wire
1 MIG gun
4 Positive welding terminal (+)
2 Negative welding terminal (-)
5 Work lead
3 MIG polarity lead
