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Retracting the Wire at the End of a Weld

Setting the S74 Feeder to use wire retract at the end of the weld

Matt Bush avatar
Written by Matt Bush
Updated over a week ago

If you would like to have the wire automatically retract at the end of each weld that is possible with the S-74 MPa Plus feeder from Miller. This article will take you through the steps to enable this feature within the feeder and then set the retract length from 0 to 1.5"

To get started Press and Hold the Setup Key on the feeder until you see the Setup Menu appear, this is the Setup Menu Level 2 in the Miller Manual that came with your system.

Turn the Left Knob to select the menu item RTRK.

Then using the Right Knob select YES, this will allow you to access the Retract settings from the main menu.

Click the Setup button to exit the Setup Menu, Level 2.

Click the Setup Button to enter the Setup Menu, when you do you will see TRIG STD displayed on the face of the unit.

Using the Left Knob proceed through the menu items until you get to RTRK, it will most likely have a value of x0.00 unless it has been set up before.

Using the Right Knob you can adjust the amount of retraction from 0" to 1.5", during testing we have found that 0.1-0.2 inches is plenty but your use case may dictate different amounts. NOTICE: Using too much retract could cause the wire to not feed properly or to take too long to feed out at the start of the weld resulting in the robot not seeing an arc-start in the proper amount of time and therefore stopping the program. If you see this issue, reduce the amount of retraction until the robot is able to feed the wire and get an arc start within the correct time frame.

The retraction will only occur at the end of a weld, once the trigger is released there is a time delay until the retraction works so if you have welds with little time between them such as linear stitch welds the wire may or may not fully retract. In our testing, we did not see any issues though with causing delays in arc start even with very short welds with minimal space between them.

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