Section 5 − Operation; Front Panel Controls - Miller XMT 425 CC/CV Auto-Line Mode D'emploi

5-1. Front Panel Controls

1 Power Switch
.
The fan motor is thermostatically
controlled and only runs when cooling is
needed.
2 Voltmeter
3 Ammeter
4 V/A (Voltage/Amperage) Adjustment
Control
5 Mode Switch
The Mode switch setting determines both the
process and output On/Off control (see Sec-
tion 5-3).
For Air Carbon Arc (CAC-A) cutting and goug-
ing, place switch in Stick position. For best re-
OM-234 196 Page 18
SECTION 5 − OPERATION
sults, place Arc Control in the maximum posi-
tion.
6 Remote 14 Receptacle
For remote control, make connections to Re-
mote 14 receptacle. In TIG and STICK modes
and the REMOTE STICK mode, remote con-
trol is a percent of V/A Adjust control setting
(value selected on V/A Adjust is maximum
available on remote). In the MIG mode, re-
mote control provides full range of unit output
regardless of V/A Adjust control setting.
7 Arc Control
Control adjusts Dig when Stick or CC mode is
selected on mode switch. When set towards
minimum, short-circuit amperage at low arc
voltage is the same as normal welding
amperage.
2
6
When set towards maximum, short-circuit
amperage is increased at low arc voltage to
assist with arc starts as well as reduce stick-
ing while welding.
Select setting best suited for application.
Control adjusts inductance when MIG or
V-Sense Feeder position is selected on the
mode switch. Inductance (0-100%) deter-
mines the "wetness" of the weld puddle. When
set towards maximum, "wetness" (puddle
fluidity) increases.
For self-shielding wires (FCAW) adjust arc
control to FCAW setting.
When Pulsed MIG or one of the TIG modes is
selected, this control is not functional.
3
5
4
7
1
Ref. 803 692-B / Ref. 239 083-A