In modern industrial manufacturing, achieving a stable, high-integrity weld nugget requires more than basic timing — it demands intelligent control. WPI Taiwan’s AC Microcomputer Resistance Weld Controls move beyond traditional DIP-switch systems to deliver high-precision management of every critical welding parameter.
Utilizing advanced microcomputer logic, these controllers monitor real-time output to deliver Constant Welding Current through sophisticated line voltage and current compensation. Whether you require a standalone control unit or a fully integrated system with an SCR power module, our microcomputer series is the essential upgrade for production facilities demanding strict quality standards and repeatable weld performance.
Features
- Constant Welding Current Control (CCC): Unlike basic manual controls, the microcomputer unit actively compensates for fluctuations in line voltage and secondary circuit impedance, ensuring consistent heat input and uniform weld nuggets for every cycle.
- Dual Feedback Options: Supports both Primary Feedback and Secondary Feedback regulation, allowing for high-precision current control based on your specific resistance welding transformer and tooling setup.
- Advanced Monitoring & Diagnostic Alarms: Features a comprehensive diagnostic suite that triggers immediate alarms for current deviations, sequence faults, or SCR hardware errors to eliminate defective welds.
- Multi-Stage & Multi-Program Versatility: Easily store 7, 15, or more independent welding schedules. Full support for multi-stage welding sequences (Squeeze, Pre-heat, Weld, Pulsation, Temper, Hold) enables seamless processing of high-strength steel, coated metals, and complex geometries.
- Integrated Production & Electrode Management: Built-in multi-group counters track electrode tip wear and total production counts, facilitating proactive tip dressing, timely electrode replacement, and efficient shop-floor workflow.
- Flexible System Integration: Available as a standalone Program Controller for easy retrofit upgrades or as a complete unit integrated with an SCR Power Module.
Specifications
| Feature | System Configuration / Options |
|---|---|
| Logic Type | High-Performance Microprocessor Control for AC Welder |
| Feedback System | Primary Feedback / Secondary Feedback |
| Program Channels | 7 / 15 / Up to 255 Schedules |
| Control Mode | Constant Current / Voltage Compensation |
| Weld Sequences | Multi-Stage (Squeeze, Pre-Weld, Weld, Hold, Off, Pulsation) |
| System Packaging | Standalone Program Controller / Integrated SCR Power System |
| Monitor | Current Monitoring / Error Detection |
| Counter Functions | Multi-group Stepper / Production Counters |
| Hardware Format | Vertical Type (Slim) / Horizontal Type (Wide) |
| Memory | Welding History / Error Memory |
Applications
- Automotive & Transport: For safety-critical structural components requiring documented weld integrity.
- High-End Appliances: Ensures aesthetic and structural consistency in stainless steel and coated metal assemblies.
- Industrial Automation: Seamlessly interfaces with robotic arms and automated dedicated machinery through reliable I/O communication.
- Quality-Controlled Manufacturing: Essential for any production line utilizing SPC (Statistical Process Control) to minimize scrap rates.
The precision of a microcomputer controller is mandatory for industries where “close enough” is not an option: