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BOSS Inverter Mig 250 Operating Manual
Figure 3
Pin
WF2 function
4 inch spool gun function
A
Torch switch input
Torch switch input
B
Torch switch input
Torch switch input
C
Current regulation
D
Current regulation
E
Current regulation
F
Short line
Short line
G
Short line
Short line
H
Short line
I
Spot switch
J
Spot switch
K
Solenoid valve
L
Solenoid valve
M
WF2 motor
Spool gun motor
N
WF2 motor
Spool gun motor
Table 4
WARNING
When the welder is connected to the primary supply voltage, the internal electrical
components maybe at primary potential with respect to earth.