Description Of Front Panel Controls (See Section 6-1) - Miller Big Blue 700 Duo Pro DLX SF Owner's Manual

6-2. Description Of Front Panel Controls (See Section 6-1)

700X Duo Pro DLX SF Models
NOTICE − The DLX SF model is designed to
work with the Smart Feeder. If Stick (SMAW)
or TIG (GTAW) welding is desired, disconnect
Smart Feeder.
.
When using the Smart Feeder, engine
speed is always weld/power speed.
.
The voltmeter is used to indicate when the
unit and the Smart
communicating. Ac.c appears on the
display blinking when not welding. During
welding Ac.c appears on the display and
stays on. When the In Use button on the
Smart Feeder is pushed, Ac.c appears on
the display and stays on. Ac.c turns off
approximately 10 seconds after the power
cable is disconnected at the Smart
Feeder.
Engine Starting Controls
1 Preheat Switch
Use switch to energize starting aid for cold
weather starting (see starting instructions fol-
lowing).
2 Engine Control Switch
Use switch to start engine, select engine
speed, and stop engine.
In Run position, engine runs at weld/power
speed. In Run/Idle position, engine runs at idle
speed at no load and weld speed with load ap-
plied.
NOTICE − Diesel engines in Miller equipment
are meant to operate optimally at moderate to
rated load. Using light or no load for extended
periods of time may cause wetstacking or en-
gine damage.
To Start:
NOTICE − Do not use ether.
.
If engine does not start, let engine come to
a complete stop before attempting restart.
Above 325 F (05 C): turn Engine Control
switch to Start. Release Engine Control switch
when engine starts.
Below 325 F (05 C): turn engine control switch
to Run position. Push Preheat switch up for 15
to 30 seconds. Turn Engine Control switch to
Start. Release Engine Control switch and Pre-
heat switch when engine starts.
.
Do not operate Preheat switch for more
than 60 seconds at a time.
To Stop: turn Engine Control switch to Off
position.
OM-252624 Page 42
.
Complete Parts List available at www.MillerWelds.com
Engine Gauges, Meters, And Lights
3 Engine Coolant Temperature Gauge
Normal temperature is 200 - 230° F (93 - 110°
C). Engine stops if temperature exceeds 266°
F (130° C).
4 Engine Oil Pressure Gauge
Normal pressure is 30 − 60 psi (206 − 414
kPa). Engine stops if pressure is below 22 psi
(150 kPa).
Feeder are
.
See Section 6-10 for complete fuel/hour
gauge information.
5 Fuel/Hour Gauge
Use gauge to check fuel level, total engine op-
erating hours, or hours to oil change.
To check fuel level or engine hours when en-
gine is not running, turn Engine Control switch
to Run/Idle position.
6 Engine Indicator Light
Light goes on and engine stops if fuel is low,
engine temperature exceeds 266° F (130° C)
or engine oil pressure is below 22 psi (150
kPa).
.
Normal engine temperature is 200 - 2305
F (93 - 1105 C). Normal oil pressure is 30
- 60 psi (207 - 414 kPa).
NOTICE − Do not run engine until trouble is
fixed.
Weld Meters
.
Weld meters also work in combination to
display troubleshooting help codes (see
Section 8-9).
7 DC Ammeter
Ammeter displays preset amperage (Stick
and TIG only) when not welding, and actual
output amperage when welding.
To set amperage, turn Process/Contactor
switch to Stick or TIG position. Turn V/A con-
trol until desired amperage is displayed on
Ammeter. When welding is finished, ammeter
displays weld amperage and then defaults to
preset amperage.
8 DC Voltmeter
Voltmeter displays preset voltage (MIG weld-
ing) with contactor off, and actual output volt-
age with the contactor on. Voltmeter displays
voltage at the weld output terminals, but not
necessarily the welding arc due to resistance
of cable and connections.
To set voltage, turn Process/Contactor switch
to MIG or FCAW position. Turn V/A control un-
til desired voltage is displayed on Voltmeter.
When welding is finished, voltmeter displays
weld voltage and then defaults to preset volt-
age.
Weld Controls
9 Voltage/Amperage Control
With Process/Contactor switch in any Stick or
TIG setting, use control to adjust amperage.
With Process/Contactor switch in any Wire
(MIG or FCAW) position, use control to adjust
voltage. Control limits the remote amperage in
Stick or TIG mode, but has no effect in Wire
modes.
10 Process/Contactor Switch
See Section 6-3 for Process/Contactor switch
information.
11 Remote Control Receptacle
Use receptacle to connect remote controls,
wire feeders, and tools requiring 24 VAC.
When a remote control is connected to the Re-
mote receptacle, the Auto Sense Remote fea-
ture automatically switches voltage/amperage
control to the remote control (see Section 6-8).
With remote control connected, weld output is
determined by a combination of front panel
and remote control voltage/amperage set-
tings.
If no remote control is connected to the Re-
mote receptacle, the front panel Voltage/Am-
perage control adjusts voltage and amperage.
.
If a remote device connected to Remote
Receptacle is faulty or is disconnected
during operation, the meters display Help
25 (see Section 8-9). Clear fault by stop-
ping and restarting the unit or by turning
Process/Contactor switch to another
position.
12 Arc Control
See Section 6-4 for Arc Control information.
13 Optional Welder Selector Switch
Use switch to select Dual Operator or Single
Operator welding mode.
Place switch in Welder A/Welder B (dual oper-
ator) position for CC and CV output from Weld-
er A (left) and Welder B (right) weld output ter-
minals. Control the weld output from the termi-
nals on each side using the weld controls on
that same side.
Place switch in Welder A (single operator)
position for weld output from Welder A (left)
weld output terminals only.
.
Welder B (right) weld output terminals are
disabled in Single Operator mode. Con-
nect only to Welder A (left) terminals for
Single Operator operation.
14 Optional Smart Feeder Setting