Marginal Column

Information

Controls and monitoring

Content

PSQ 6000 - for supreme quality in spot welding

The PSQ 6000 control system is designed to monitor quality performance in high-volume production operations. Intelligent current/voltage control maximizes process reliability and provides online verification of spot weld quality. The BOS 6000 operating interface includes logging and documentation features.

Control and monitoring functions are integrated in the control system. The XQR control card is available as an upgrade for older PSI 6000 series systems.

Adaptive current/voltage control for perfect welding quality

The adaptive process control system gives you added flexibility for future requirements in the welding process. By measuring current and voltage, the course of resistance and energy can also be calculated, controlled and accurately evaluated during welding. The adaptive control algorithm ensures consistent quality and reduces spatter in demanding welding applications. Expensive rework is therefore considerably reduced.

Process monitoring

Tolerance limits can be set and monitored for a number of basic process parameters: current, phase angle, electrode voltage, resistance, current time cycle, power and energy. Two consolidated variables, which summarize the basic variables, are provided to simplify system handling:

  • PSF - the process stability factor indicates the stability of the welding process
  • UIP - the quality factor provides an indication of actual product quality

Q-Stop logic

Patented Q-Stop logic is a very useful extension of monitoring functionality. It enables users to analyze and optimize system productivity by defining how the system reacts to repetitive faults in a program or on a particular part.

Process overview

To provide the big picture, the status of all attached welding controllers is displayed on a bar graph.