Complete Parts List is available at www.MillerWelds.com
OM-259 355 Page 32
6-3. Process/Contactor Switch
1
Process/Contactor Switch
!
Weld output terminals are en-
ergized when Process/Con-
tactor switch is in a Weld Ter-
minals Always On position
and the engine is running.
Use switch to select weld process
and weld output on/off control (see
table below).
Place switch in Remote On/Off
Switch Required positions to turn
weld output on and off with a device
connected to the Remote 14 recep-
tacle.
Place switch in Weld Terminals Al-
ways On positions for weld output to
be on whenever the engine is run-
ning.
Use Stick mode for air carbon arc
(CAC-A) cutting and gouging.
When switch is in Stick mode, select
one of four arc drive (dig) settings to
provide additional amperage during
low voltage (short arc length) condi-
tions and prevent “sticking” elec-
trodes. Turn control from A to D to in-
crease arc drive (dig) from min to
max.
Use the Lift-Arc TIG mode for TIG
(GTAW) welding using the Lift-Arc
TIG starting procedure (see Section
6-4).
1
803 562 / 250 225-A
Process/Contactor Switch Settings
Switch Setting
Process
Output On/Off Control
Engine Auto Idle (Optional)
Remote On/Off Switch Re-
quired
−
TIG HF Required Or
Scratch Start
GTAW With HF Unit, Pulsing
Device, Or Remote Control
At Remote 14 Receptacle
Active
Remote On/Off Switch
Required
−
Stick
Stick (SMAW) With Remote On/Off
At Remote 14 Receptacle
Active
Remote On/Off Switch
Required
−
CV Feeder
Using Remote
MIG (GMAW)
w/Constant Speed Feeder
At Remote 14 Receptacle
Active
Weld Terminals Always On
−
Wire
MIG (GMAW)
w/Voltage Sensing Feeder
Electrode Hot
Active
Weld Terminals Always On
−
Stick
Stick (SMAW),
Air Carbon Arc (CAC-A) Cutting
And Gouging
Electrode Hot
Active
Weld Terminals Always On
−
TIG Lift-Arc
TIG Lift-Arc (GTAW)
Electrode Hot
Active
Summary of Contents for Big Blue 300 PRO Series
Page 33: ... Complete Parts List is available at www MillerWelds com OM 259 355 Page 29 Notes ...
Page 51: ... Complete Parts List is available at www MillerWelds com OM 259 355 Page 47 Notes ...
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Page 60: ...OM 259 355 Page 56 Figure 10 2 Circuit Diagram For Welding Generator With Kubota Engine ...
Page 61: ...OM 259 355 Page 57 253 845 B ...
Page 62: ...OM 259 355 Page 58 Figure 10 3 Circuit Diagram For Welding Generator With Mitsubishi Engine ...
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