Operating modes of welding controllers
Welding controllers can be operated in different modes. The most common and widely used operating mode is single-point operation. In automated systems, this single point operating mode is usually used. However, the other operating modes series spot and seam welding or continuous current can be selected on the welding controllers.
In the single spot operating mode, a welding cycle is run through when the start is triggered and is completed with the sequencing contact (progress contact). Each individual weld is started with a separate signal.
In the serial spot operating mode, the programmed welding cycle is repeated as long as the start signal is present. The work cycle is repeated cyclically until the start signal is removed. In practice, serial point operation is only rarely used. For manual welding guns when spot welding several spots on a longer component, this is often used to save the repeated pressing of the start.
The seam mode, as the name suggests, is used for roller seam welding. There is a change between current and pause time when the start contact is applied. A special form of this is continuous operation. Current is output as long as the start contact is present. For a detailed description of the operating modes, please refer to the operating instructions of the welding control units.