MK Welding Multi-GMAW 200 LCD PFC - §3 Panel Functions & Descriptions

OPERATION
12
EN
Rectifier Inverter Transformer Rectifier Hall
Current
Feedback
control
Single-phase AC
DC
AC DC
220V 50Hz
AC DC
Welding current
regulate
(Wire feed speed)
Wire feeder
motor
PWM signal
CPU control
Voltage
Feedback
control
§2.5 Volt-Ampere Characteristic
MIG series of welding machines has an excellent volt-ampere characteristic, whose graph is
shown as the following figure. The relation between the rated loading voltage U
2
and welding current
I
2
is as follows: U
2
=14+0.05I
2
(V)
44
14
0 600
I
o
（A）
U
o
（V）
Working point
Volt-ampere characteristic
The relation between the rated loading
voltage and welding current
§3 Panel Functions & Descriptions
§3.1 Machine Layout Description
Front and rear panel layout of welding machine
three-phase
400V
50/60Hz
Current
sensor