Yeswelder YWM-211P, Operator'S Manual

Page: 29 / 40

- 25 -
Arc Force Adjustable:
Arc force is a momentarily increase of the welding current during welding when the machine senses the drop of the arc voltage
caused by a short arc length. Arc force compensates for the voltage drop by increasing the amperage. Increased amperage en-
sures that the heat stays the same and that the electrode will not dip into the base metal. This function dramatically helps stabilize
the arc, prevent the arc from cutting out in the welding process, and prevent the electrode from sticking to the workpiece.
Arc force should be set according to the electrode diameter, preset current and the technical requirement. If the arc force is big, the
molten drop can be transferred quickly, and electrode sticking seldom occurs. However, too big arc force may lead to excessive spa
tter. If the arc force is small, there will be little spatter, and the weld bead will be shaped well. However, too small arc force may lead
to soft arc and electrode sticking. Therefore, the arc force should be increased when welding with thick electrode under low current.
In general welding operation, the user can set the arc force between 1 and 10. For example, when the preset current is 50A, and
the arc force is 2, the actual welding current will be 60A. However, when the current increases to the maximum allowable value of
200A, the welding current won’t ascend anymore.
Hot Start Adjustable
Hot start is a feature that pumps up the amperage for a short time when you start the arc. Higher amperage helps to start the arc ea-
sier without sticking the electrode to the base metal. A hot start helps warm the base metal to achieve deep penetration at the weld
start.
The hot start is essential, especially in working conditions such as damp electrodes, imperfect job surfaces, or when using ‘difficult
to run’ electrodes, etc.
Set the hot start amp with a range of 1 to 10. One example, if the preset current is 50A and the hot start amp is set at 2, the hot
start current will be 60A. The current will return to 50A after the arc establishes successfully.
Anti-Stick Optional:
The anti-stick feature is not embedded in the welder. It’s available as an option.
Anti-stick is a feature that will take action when the electrode contacts the base metal. When the machine senses that the electrode
touches the workpiece, it will automatically cut off the welding current. This feature prevents the electrode from welding into the
workpiece and the welding machine from overloading. With the anti-stick function, breaking the electrode from the workpiece is ef-
fortless.