MK Welding Multi-GMAW 200 DP PFC - Volt-Ampere Characteristic

OVERVIEW
15
EN
§2.6 Volt-Ampere Characteristic
MULTIMIG SYN 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)
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
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
110V/220V
50HZ
Current
sensor