CHC-300A Capacitive Height Controller is a compact, innovative, full-featured, high-precision, and reliable capacitive height controller. It includes position signal detection, signal processing transformation, logic control, and motor drive four parts. It is suitable for flame cutting torches, water-based small power plasma cutting torches, laser cutting torches and other equipment that need to perform automatic torch height control.
The CHC-300A capacitor‑type height controller is a compact, high‑precision closed‑loop device designed for CNC cutting machines such as flame, plasma, and laser cutters. It uses a capacitive probe to detect the distance between the torch and the workpiece and drives a DC motor via PWM to maintain the set height.
This manual covers an introduction, technical specifications, physical layout and installation, front‑panel functions, external interface wiring, and step‑by‑step debugging procedures, including adjustment of height, sensitivity, braking, and motor current feedback. This manual is written in Chinese.
| Supply voltage | AC24V ±10%, 50‑60 Hz |
|---|---|
| Motor voltage | DC24V permanent‑magnet motor |
| Output current | 1 A‑4 A |
| Operating temperature | -10 °C to 60 °C |
| Probe temperature range | -10 °C to 350 °C |
| Positioning accuracy | ±0.2 mm |
| Adjustment range | 1 mm – 20 mm from workpiece surface |
| Maximum output power | 100 W |
| Dimensions (L×W×H) | 150 mm × 133 mm × 47 mm |
| PWM frequency (factory default) | 9 kHz |
| Feedback current (factory default) | 4 A |
It requires an AC supply of 24 V ± 10% at 50‑60 Hz.
Adjust the brake potentiometer RP1 on the controller to achieve the desired braking effect.