The MA-400 S from Heinz Soyer Bolzenschweißtechnik is the CNC control center for SOYER KTS-CNC automated stud welding machines, manufactured from 2001 onwards. It runs a PC-based real-time control system with the Boizit W32 graphical programming environment, offering macro programming, zero-point shift, and automatic re-weld logic. The controller bridges both capacitor discharge (CD/SZ) and drawn arc (DA/HZ) welding processes, directing up to 8 servo axes simultaneously with contouring error monitoring and automatic motor shutoff on servo-type machines.

How does the MA-400 S manage multi-axis stud welding automation?

The controller coordinates feeding devices, launching ramps, pickup stations, and welding head positioning across up to 8 servo axes. Zero-point shift can be applied to individual welding heads or across all parts in a program, while the re-weld function supports single-stud, multiple-stud, or position-specified rework without restarting the entire sequence. Automatic Z-axis setting for welding heads reduces mechanical setup time between production batches. The controller directly interfaces with SOYER BMS-10P and BMK-16i power units, transmitting welding parameters and receiving measurement data in real time.

What quality monitoring and traceability features does the MA-400 S provide?

During each weld, the MA-400 S captures and displays welding current, welding voltage, travel distance (mm), drop time (ms), and positioning speed (mm/s) in real time. Measurement values are transmitted automatically and can be archived for batch traceability. When paired with the SOYER EQS-3 external quality surveillance system, the controller monitors up to 3 welding heads or welding guns simultaneously, with a user-selectable measurement window from 3 ms to 2000 ms. This combination supports the documentation requirements of automotive OEM production — including chassis control arms, body panels, and structural assemblies — where every stud weld must be individually verified.