Signals between power source and wire feeder unit
Pin Signal Explanation
A - -
B 30 Vac Supply voltage for wire feeder unit (fuse 6,3 A slow)
C 30 Vac Supply voltage for wire feeder unit (fuse 6,3 A slow)
D - -
E Power source size / Arc
on
Power source size detection / Arc on-info to the wf-unit
F 0 V GND
G - -
H 0 - 10 V Set value information to the power source (current or voltage)
I Process selection /
MIG/MAG-dynamics
+ 10 V = MMA
+ 0,5 – 3,5 V = MIG/MAG-process and MIG/MAG-dynamics setting
Signals in the control cable between the power source and the wire feeder unit:
Voltages in the E-line of control cable between the power source and the wire feeder:
Kempomig 3200 Kempomig 4000
During startup the wire feeder detects the power source size, based on the voltage level at E-line.
When the arc is ignited the power source pulls down the voltage in E-line, which gives an ar on-
signal to the wire feeder. This arc on-signal can be used for different kinds of mechanization
purposes.
Power source size Arc on-info
13
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