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FLEXTEC™ 500
GTAW
This weld mode is a constant current (CC) mode featuring continuous
control from 10 –500 amps.
It is intended for the GTAW TIG welding processes.
Hot Start - Hot start regulates the arc initiation current. A setting 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 LCD Display – 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 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 LCD Display – 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 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.
Output Control Local/Remote – When the control is set to local (no
remote potentiometer/control plugged into the 12-pin or 14-pin
connectors), the output is controlled through the Output Control dial
on the front of the Flextec™ 500. Set this switch to 'Remote' when
an external potentiometer/control is connected.
• When a remote potentiometer is connected, the output control on
the Flextec™ and the remote act as a master/slave configuration.
Use the output control dial on the Flextec™ to set the maximum
welding current. The remote will control output from minimum to
the pre-set maximum.
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 than
controls the amperage from minimum to this pre-set maximum.
C-6
OPERATION
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