Miller Electric Big 40 CAT - Manual (Page 42)

OM-4406 Page 36 Return To Table Of Contents
7-3. Process/Contactor Switch On CC/CV Models
1 Process/Contactor Switch
Y Weld output terminals are ener-
gized when Process/Contactor
switch is in an Electrode Hot posi-
tion and the engine is running.
Y DC voltage is still present at the
weld terminals when Process/
Contactor switch is in the Remote
− Stick position and the engine is
running.
Use switch to select weld process and
weld output on/off control (see table be-
low and Section 7-4).
Place switch in Remote positions to turn
weld output on and off with a device con-
nected to the remote 14 receptacle.
Place switch in Electrode Hot positions
for weld output to be on whenever the en-
gine is running.
Use Stick position for air carbon arc
(CAC-A) cutting and gouging.
When switch is in a Stick position, the arc
drive (dig) circuit provides additional am-
perage during low voltage (short arc
length conditions) to prevent “sticking”
electrodes.
The arc drive (dig) circuit is disabled
when switch is in MIG or TIG positions.
.
Place switch in Electrode Hot - Stick
position when using optional three−
phase generator (see Section 8-2).
.
The engine auto idle option does not
work in the Remote-TIG mode.
1
Process/Contactor Switch Settings
Switch Setting Process Output On/Off Control Engine Auto Idle (Optional) Switch Setting Process Output On/Off Control Engine Auto Idle (Optional)
Remote − TIG
GTAW With HF Unit, Pulsing
Device, Or Remote Control
At Remote 14 Receptacle Not Active
Remote − Stick Stick (SMAW) With Remote On/Off At Remote 14 Receptacle Active
Remote − MIG MIG (GMAW) At Remote 14 Receptacle Active
Electrode Hot − MIG MIG (GMAW) Electrode Hot Active
Electrode Hot − Stick
Stick (SMAW),
Air Carbon Arc (CAC-A) Cutting
And Gouging
Electrode Hot Active
Electrode Hot − Scratch
Start TIG
Scratch Start TIG (GTAW) Electrode Hot Active