Tweco 500P PowerMaster - Manual (Page 22)

POWERMASTER 500, 500P, 350
INTRODUCTION 2-6 Manual No. 0-4749
70
60
50
40
30
20
10
0
100 200 300 400 500 600 700
V
olt
s
Amps
0
VOLT-AMP CURVE FOR CC-SMAW MODE
MIN.
MAX. ARC FORCE
MAX.
MIN. ARC
FORCE
70
60
50
40
30
20
10
0
100 200 300 400 500 600
V
olt
s
Amps
0
VOLT-AMP CURVE FOR CC-GTAW MODE
MIN. MAX.
Art # A-04120
70
60
50
40
30
20
10
0
100 200 300 400 500 600 700
V
olt
s
Amps
0
VOLT-AMP CURVE FOR CV-GMAW MODE
MIN.
MAX.
Figure 2-4 Power-Master 500P Power Source Volt-Amp
Characteristics
2.08 General: Power-Master 500P
The Power-Master 500 Pulse is a primary inverter DC
power source that can be used for constant voltage and
constant current weld processes. The Power-Master 500
Pulse output is rated at 450 Amps/38 Volts at 100% duty
cycle and 500 Amps/40 Volts at 60% duty cycle. The
power source also provides 24VAC and 120VAC auxiliary
outputs rated at 10 Amps.
Controls are built into the power source for Gas
Tungsten arc welding (GTAW), Shielded Metal arc
welding (SMAW), Gas Metal arc welding (GMAW), and
Pulsed Gas Metal Arc Welding (P-GMAW). An Arc
Force/Inductance control is also provided to allow
adjustment of the arc characteristics for SMAW.
The graphs in Figure 2-4 show the output volt-amp
characteristics of the power source for the SMAW, GTAW,
and GMAW modes of operation.