MMA functions and features

MMA antifreeze

MMA antifreeze function automatically decreases the welding current significantly when the electrode is touching the workpiece. The function can be used to prevent the MMA electrode from getting too hot when it is in contact with the workpiece. The MMA antifreeze function is always on and does not need to be adjusted.

MMA arc force

MMA arc force adjusts short circuit dynamics (roughness) of MMA welding by changing, for example, current levels.

Pressing the control panel's control knob in the MMA operation mode changes from the welding current adjustment to the arc force adjustment. The adjustment range is -10…+10, the step is 1, and the default is 0.

MMA current modes

The available current modes for MMA welding are DC- and DC+. Select the current mode according to the electrode and the application.