User manual for the Weimke KD7806 digital welding synch controller, covering specifications, installation, wiring and operation.
The KD7806 is a micro‑computer‑controlled welding synch controller that manages six program stages—pre‑pressure, pre‑heat, welding, tempering, hold and pause—by digitally adjusting timing and current. It uses a low‑power VE7306 MCU, consumes about 15 W, and offers modular design for easy integration into welding machines.
The manual provides technical specifications, detailed installation steps, wiring diagrams for SCRs and external devices, and operating instructions including program selection, current and frequency adjustment, and power‑factor tuning. Safety notes and recommended protective devices are also included. This manual is written in Chinese.
| Program segments | 6 |
|---|---|
| Frequency range per segment | 0‑99 (0‑1.98 s) |
| Frequency precision | ±0 |
| Current relative range | 0‑99.5 (relative value) |
| Control output | Main contactor relay signal, capacitor switch |
| Maximum control current | 300 A |
| Power supply voltage | AC 380 V 50 Hz |
| Dimensions | 16 × 8 × 12.5 cm |
| Weight | 1.5 kg |
The KD7806 controller provides six program segments.
It can handle a maximum control current of 300 A.