Sequencer Functions - Lincoln Electric Aspect 230 DC Operator's Manual

ASPECT ® 230 DC

SEQUENCER FUNCTIONS

The sequencer allows for customization of the TIG welding operation.
Pressing the "SEL" button will cycle through the process graph (See
figures B.11 and B.12).
FIGURE B.11
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1. Pre-Flow: Sets the time in seconds that shielding gas will flow
prior to arc-start initiation. Default = 0.5 sec (0-25 sec)
2. Starting Current: Sets the starting amperage for the process.
3. Initial Slope: Sets the time in seconds it takes the starting
current to reach normal operating amperage. Only functions in
4-Step operation. (0-5 sec)
4. Operating Amperage: Sets max amperage for both 2-Step and
4-Step TIG welding applications.
5. Final Slope: Sets the time in seconds it takes the operating
amperage to ramp down to the Finishing current. Only functions
in 4-Step. (0 - 25 sec)
6. Finishing Current: Sets the finishing amperage for the process.
7. Post Flow: Sets the time in seconds shielding gas will flow after
the arc is terminated. Default = AUTO
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Range = (.1 - 60 sec)
PULSE SEQUENCER FUNCTIONS
To access the pulse menu, select the Pulse Sequencer button once
and then cycle through the Sequencer with the SEL button.
FIGURE B.12
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8. Pulses-Per-Second: Sets the total number of pulse cycles per
second of time. (.1 - 2000 Hz)
9. Percent Peak Current: This functions sets the amount of time
the pulse waveform spends at the peak current setting. This
function is set as a percentage of the total time for the pulse
cycle. (5 - 95%)
10. Background Current: Sets the background amperage of the
pulse waveform. Background amperage is set as a percentage
of the peak current.
(10 - 90%)
B-5
OPERATION
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