Owner`s manual

. A complete Parts List is available at www.MillerWelds.com

OM-253 392 Page 19

5-3. Process/Polarity Table

Process Polarity

Cable Connections

Wire Drive Assembly Cable Work Cable

GMAW − Solid wire with shielding gas DCEP − Reverse polarity Connect to positive (+)

output receptacle

Connect to negative (−)

output receptacle

FCAW − Self-shielding wire − no

shielding gas

DCEN − Straight Polarity Connect to negative (−)

output receptacle

Connect to positive (+)

output receptacle

5-4. Wire Welding Connections

Ref. 254 252-B / Ref. 254 249-A / Ref. 254 247-B

! Turn off unit and disconnect input

power before making connections.

1 Positive Weld Output Receptacle

2 Negative Weld Output Receptacle

3 Wire Drive Assembly Cable

4 Work Clamp And Cable

Ensure all connections are tight.

5 Gun End

Connect gun end to drive assembly (see

Section 5-5).

6 Trigger Control Cable

7 Four Pin Trigger Control Cable

Receptacle

Route trigger control cable through MIG

gun hole.

Connect plug on end of cable to four pin

receptacle inside unit.

8 MIG Shielding Gas Connection

Use 75/25 mix or CO

shielding gas for

solid wire. Use Argon shielding gas for

aluminum wire with spool gun (see Section

5-6).

MIG − DCEP

(Direct Current Electrode Positive)

Flux-Cored − DCEN

(Direct Current Electrode Negative)