Power-Up Sequence - Lincoln Electric 12719 Operator's Manual

FLEXTEC 650x

POWER-UP SEQUENCE

When power is applied to the FLEXTEC 650x, the displays will
illuminate and display the voltage and/or amperage settings.
COmmON WELDING PROCEDURES
WARNING
The serviceability of a product or structure utilizing the
welding programs is and must be the sole responsibility of
the builder/user. Many variables beyond the control of The
Lincoln Electric Company affect the results obtained in
applying these programs. These variables include, but are
not limited to, welding procedure, plate chemistry and
temperature, weldment design, fabrication methods and
service requirements. The available range of a welding
program may not be suitable for all applications, and the
build/user is and must be solely responsible for welding
program selection.
The FLEXTEC 650x is a multi-process inverter welder. The Weld
Process Selector Switch is used to set the desired weld mode.
The FLEXTEC 650x has 6 selectable welding modes:
1. SMAW – This is a CC (constant current) weld mode used for
the SMAW stick welding process.
2. GTAW – This is a CC (constant current) weld mode used for
the GTAW tig welding process.
3. CV – This is CV (constant voltage) weld mode used for
welding the GMAW mig welding process and the FCAW-G flux
cored gas shielded welding process.
4. CV-Innershield – This is a CV (constant voltage) weld mode
used for welding the FCAW-S (FCAW-S), flux cored self
shielded welding process.
5. CV-SAW – This is a CV (constant voltage) weld mode used for
welding the SAW submerged arc welding process
6. ArcLink – This weld mode position is used to unlock Synergic
modes when combined with an ArcLink feeder.
The FLEXTEC 650x is also capable of gouging. Gouging can be
done in either the SMAW mode or the CV and CV-Innershield
modes.
In addition to the weld process selector switch, a hot start control
dial, output control dial and arc control dial are provided to setup
and fine tune the welding procedure.
WELD CONTROLS AND DISPLAYS
Weld Process Selector Switch
6 Position switch used to select the welding process.
Hot Start Control Dial
• The Hot Start control regulates the starting current at arc
initiation. Hot Start can be set to "0" and no additional current
is added at arc start. Increasing from 0 to 10 will increase
the additional current (relative to the preset current) that is
added at arc initiation.
Arc Control Dial
• Full range selection of arc control from -10 to +10. In CV
mode, this control is an inductance control. In stick mode,
the control adjusts the arc force.
Output Control Dial
• Output control is conducted via a single turn potentiometer.
• Adjustment is indicated by the meters.
• When in REMOTE modes, this control sets the maximum
welding current*. Full depression of a foot or hand amptrol
results in the preset level of current.
* NOTE: This is the case for CC modes only. In CV modes, maximum volt-
age is determined by the remote.
Voltage Display Meter
• Prior to CV operation (current flow), the meter displays desired
preset voltage value (+/- .5V).
• Prior to STICK or TIG operation, the meter displays three
dashes.
• During welding, this meter displays actual average volts.
• After welding, the meter holds the actual voltage value for 5
seconds. The displays blink indicating that the machine is in
the "Hold" period.
• Output adjustment while in the "Hold" period results in the
"prior to operation" characteristics.
Amperage Display Meter
• Prior to STICK or TIG operation (current flow), the meter
displays preset current value (either 2 amps or +/- 3%
(e.g. 3 amps on 100), whichever is greater).
• Prior to CV operation, the meter displays three dashes
indicating non-presettable AMPS.
• During welding, this meter displays actual average amps.
• After welding, the meter holds the actual current value for 5
seconds. The displays blink indicating that the machine is in
the "Hold" period.
• Output adjustment while in the "Hold" period results in the
"prior to operation" characteristics.
Weld Terminals On/Remote Toggle Switch
• This switch determines the trigger location.
• When set to the "ON" position, the weld terminals are at OCV
(open circuit voltage) and ready to weld.
• When set to the "remote" position, output is enabled through
a remote trigger.
B-7
OPERATION