Lincoln Electric FLEXTECTM 650 Operator's Manual page 28

FLEXTEC TM 650
Hot Start - 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 - The Arc Control regulates the Arc Force to adjust
the short circuit current. The minimum setting (-10) will produce
a "soft" arc and will produce minimal spatter. The maximum set-
ting (+10) will produce a "crisp" arc and will minimize electrode
sticking.
Weld Terminals On/Remote – Set to "ON" and the machine is
in the ready to weld state.
Voltage Display Meter – This display will display three dashed
lines when the machine is in the idle state. This indicates that
voltage is not settable in this weld mode. While output is
enabled, the actual welding voltage will be displayed. After
welding, the meter holds the actual voltage value for 5 sec-
onds. Output adjustment while in the "hold" period results in the
"prior to operation" characteristics stated above. The displays
blink indicating that the machine is in the "hold" period.
GTAW
This weld mode is a constant current (CC) mode featuring con-
tinuous control from 10 – 815 amps. It is intended for the
GTAW tig welding processes.
Hot Start - Hot start regulates the arc initiation current. A set-
ting of +10 results in the most positive arc initiation.
Arc Control – This control is not used in the GTAW mode.
Weld Terminals On/Remote
• 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.
Voltage Display Meter – This display will display three dashed
lines when the machine is in the idle state.
This indicates that voltage is not settable in this weld mode.
While output is enabled, the actual welding voltage will be dis-
played. After welding, the meter holds the actual voltage value
for 5 seconds. Output adjustment while in the "hold" period
results in the "prior to operation" characteristics stated above.
The displays blink indicating that the machine is in the "hold"
period.
Amperage Display Meter – This display will display the pre-
set welding current when the machine is in the idle state. After
welding, the meter holds the actual amperage value for 5 sec-
onds. Output adjustment while in the "hold" period results in the
"prior to operation" characteristics stated above. The displays
blink indicating that the machine is in the "hold" period.
Output Control Local/Remote – When the control is set to
"LOCAL" (no remote potentiometer/control plugged into the 6
pin or 14 pin connectors), the output is controlled through the
Output Control Dial on the front of the FLEXTEC™ 650. Set
this switch to "REMOTE" when an external potentiometer/con-
trol is connected.
• When a remote potentiometer is connected, the output con-
trol on the FLEXTEC™ 650 and the remote act as a mas-
ter/slave configuration. Use the control dial on the
FLEXTEC™ 650 to set the maximum welding current. The
remote will control output from minimum to the pre-set maxi-
mum.
Output Control Dial
• When the Local/Remote is set to "LOCAL", this dial sets the
welding amperage.
• When the Local/Remote is set to "REMOTE", this dial sets
the maximum welding amperage. The remote potentiometer
controls the amperage from minimum to this pre-set maxi-
mum.
CV-Gas
This weld mode is a constant voltage (CV) mode featuring con-
tinuous control from 10 to 45 volts. It is intended for the
GMAW, FCAW-GS, MCAW welding processes and arc goug-
ing.
Hot Start – Rotate from the "0" position to the "10" position to
provide more energy during the start of a weld.
Arc Control – The Arc Control regulates pinch effect. At the
minimum setting (-10), minimizes pinch and results in a soft
arc. Low pinch settings are preferable for welding with gas
mixes containing mostly inert gases. At the maximum setting
(+10), maximizes pinch effect and results in a crisp arc. High
pinch settings are preferable for welding FCAW and GMAW
with CO .
2
Weld Terminals On/Remote
• When set to the "ON" position, the weld terminals are at
OCV (open circuit voltage) and ready to weld. This selection
is used for across the arc wire feeders.
• When set to the "REMOTE" position, output is enabled
through a remote trigger.
Amperage Display Meter – This display will display
three dashed lines when the machine is in the idle
state. This indicates that amperage is not settable in this weld
mode. While output is enabled, the actual welding amperage
will be displayed. After welding, the meter holds the actual
amperage value for 5 seconds. Output adjustment while in the
"hold" period results in the "prior to operation" characteristics
stated above.
The displays blink indicating that the machine is in the "hold"
period.
B-9
OPERATION