Typical Configurations When Connected To Constant Voltage (Cv) Power Sources - Miller 3045 FC Owner's Manual

5-3. Typical Configurations When Connected To Constant Voltage (CV) Power Sources

Make sure the contact tips, liners, feedrolls, etc. are selected to match the wire being
used. Set the voltage on the welding power source and the wire feed speed per the
wire, diameter, gas, thickness, joint configurations, and other parameters required.
For best performance, connect weld cables so polarity (DCEN or DCEP) matches that
required by welding wire.
CO 2 = Carbon Dioxide
C25 = Argon + 25% Carbon Dioxide
Tri–Mix = 90% Helium + 7.5% Argon + 2.5% Carbon Dioxide
Notes
Constant Voltage (CV) Power Sources
Material Wire Type Polarity
MS Solid
DCEP
W i r e
Steel
Flux Core DCEN
E71T–11
E71T–1 DCEP
Stainless Solid
DCEP
Steel Stainless
No control cable connection exists between the wirefeeder and the CV power
source so the power source contactor circuit must be completed locally.
Consult the wire manufacturer or supplier for recommended shielding gases.
Shielding Wire Size
Gases (Diameter)
.024 in. (0.6mm)
C25,CO
.030 in. (0.8mm)
2
.035 in. (0.9mm)
.030 in. (0.8mm)
N/A
.035 in. (0.9mm)
.045 in. (1.2mm)
C25,CO .045 in. (1.2mm)
2
.030 in. (0.8mm)
Tri–Mix
.035 in. (0.9mm)
OM-1500-3 Page 19