Owner`s manual
OM-253 906 Page 53
S Ramp down time − 0.0 to 10.0 seconds
S Final amperage − 10 to 350 amps
S Final time − 0.0 to 10.0 seconds (2T only)
S Postflow time − 0 to 60 seconds
2T Trigger Operation
When in the 2T trigger mode the following weld sequence will occur:
S Press and hold the TIG torch trigger to start the sequence.
S Preflow is conducted for the programmed time.
S After preflow, the weld sequence starts in accordance to the programmed parameters (initial amperage and time, ram-up time).
S After reaching the weld current, the weld will continue as long as the TIG torch trigger is depressed.
S Release the trigger to initiate the stop sequence. The stop sequence will proceed in accordance with the programmed parameters (ramp down
time, final amperage and time, postflow).
4T Trigger Operation
When in the 4T trigger mode the following weld sequence will occur:
S Press and hold the TIG torch trigger to start the sequence.
S Preflow is conducted for the programmed time.
S After preflow, initial amperage is started if programmed. The initial amperage will be maintained as long as the TIG tor trigger is depressed.
S Releasing the TIG torch trigger initiates the ramp-up time until the welding amperage is reached.
S Welding will continue at the welding amperage setting.
S Press and hold the TIG torch trigger to initiate the ramp down time and final amperage. The final amperage will be maintained as long as the TIG
torch trigger is depressed.
S Release the TIG torch trigger to stop the welding process. When released, postflow is initiated in accordance with the programmed value.
F. MIG Welding Process Controls
. The reference to left side feeder controls or left side gun trigger applies to either a single feeder or dual feeder. The reference to right side feeder
controls or right side gun trigger only applies to a dual feeder.
The controls in the MIG setup panel are only active when in the MIG process. Press and release the SIDE SELECT button to activate the MIG
process and the desired feeder side. The LEFT or RIGHT text will illuminate to indicate the the active feeder side (only LEFT will illuminate when
using a single feeder). The MIG welding process controls can also be activated at the feeder front panel by pressing LEFT or RIGHT, or by pressing the
left or right side gun trigger (see Section 6-9A). The MIG setup panel controls on the welding power source should be selected in order from left to right
starting with MIG type and ending with trigger select.
1. MIG TYPE Process Select Button
Press and release the MIG TYPE button to select the desired process (FCAW, MIG, RMD, or PULSE). The text illuminates to the right of this button to
indicate the active process selection:
FCAW − gas shielded flux cored welding process
MIG (GMAW)− standard short circuit or spray welding process
RMDt (Regulated Metal Deposition) − modified short circuit welding process
PULSE (GMAW-P) − Pro-Pulset pulse welding process.
2. WIRE TYPE Select Button
Press and release WIRE TYPE button to select the desired wire type (CARBON, CARBON METAL CORE or STAINLESS steel). The text illuminates
above or below the button to indicate the active wire type selection. This selection is required for all MIG process types except FCAW.
3. WIRE DIAMETER Select Button
Press and release the WIRE DIA button to select the desired wire diameter (0.9, 1.0 or 1.2). The text illuminates above or below the button to indicate the
active wire diameter selection. This selection is required for all MIG process types except FCAW.
4. GAS TYPE Select Button
Press and release GAS TYPE button to select the desired shielding gas. This button will cycle through and illuminate only the available gas selections in
one particular column of the gas table based on the selected MIG process and WIRE TYPE type. The text illuminates when any MIG process is selected
except FCAW.