The ZL-II master controller is primarily used for setting and controlling the travel limits of the test piece, achieving automatic control of its movement. Through the reduction effect of the worm gear mechanism, it effectively enhances control precision.

Due to its advantages such as simple structure, easy installation, stability, reliability, and the ability to arbitrarily set control points as needed, this controller is widely used in automatic control systems for water conservancy, power, machinery, chemical, textile, food industries, as well as scientific research and meteorology.

II. Main Technical Parameters:

1. Speed ratio between input shaft and camshaft: 1:7.5, 1:16, 1:30, 1:64, 1:120, 1:256

2. Upper and lower limit control accuracy: ±3cm

3. Limit switch operating voltage: 220V

4. Limit switch operating current: 3A

5. Two limit switches with independent common points, normally open, and normally closed contacts (can be increased to4 or6 as needed)