Preparing Unit For Manual Mig (Gmaw And Fcaw) Welding Process - Miller Electric MPi 220P Owner's Manual

5-5. Preparing Unit For Manual MIG (GMAW And FCAW) Welding Process

4
5
OM-253 918 Page 26
SYN OFF
1
3
2
Press And Release
To select MIG welding proceed as
follows:
Prepare unit according to Section 4.
Use a cable with correct adapter,
connect gun to the MIG gun con-
nector.
For GMAW process:
Connect wire drive lead to positive
output terminal. Connect work
clamp lead to negative output ter-
minal. See Section 4-5 for GMAW
solid wire with shielding gas pro-
cess. See Section 4-3 for installing
gas supply.
For FCAW process:
Connect wire drive lead to negative
output terminal. Connect work
clamp lead to positive output ter-
minal. See Section 4-5 for FCAW
self-shielding wire no shielding gas
process.
1 Process Selection P1 Push
Button
2 Sequencer Set-Up P2 Push
Button
3 Sequencer
Adjustment/Operator Point
Setting P3 Push Buttons (See
Section 5-16)
4 Welding Voltage Adjustment
Knob
Use knob to select desired welding
voltage. Rotate knob clockwise to
increase the output voltage value
(min = 10 volts DC, max = 35 volts
DC).
5 Wire Feed Speed (WFS)
Adjustment Knob
Use knob to select desired WFS.
Rotate knob clockwise to increase
WFS value (min = 0 mpm, max =
20.9 mpm).
Set MIG welding process using pro-
cess selection P1 push button. To
enter in manual MIG mode, press
and release sequencer set-up P2
push button. Use sequencer ad-
justment P3 push buttons until
SYN−OFF is displayed. Press and
release P2 again to confirm selec-
tion.
.
In manual MIG mode, the oper-
ator may need to adjust main
welding parameters for specific
arc characteristics. Wire feed
speed and arc voltage will ap-
pear on digital meter display.
Ref. 956142881_8-A