A detailed description of the tension controller

Overview

Tension controllers in the industrial control industry, in some band and line products, often need to control the tension to achieve production requirements, tension controller is a kind of instrument to control this kind of tension, tension controller is a kind of system developed by a single-chip computer or some embedded devices and peripheral circuit, is a kind of control instrument, it can directly set the required control tension value, and then directly input the tension sensor It can directly set the required control tension value, and then directly input the tension sensor signal (usually millivolt level) as the tension feedback value, and through the comparison of the deviation, input to the PID and other controllers for processing, the best output to the peripheral actuators to control, and finally achieve the purpose of minimum deviation, the fastest system response. The tension controller also has the so-called manual control function, which generally refers to the human can be given a certain amount of output to the actuator through the tension controller (often for the electric flow of the motor); some tension controllers also have a volume diameter projection function, generally used in the winding equipment, there is a winding and winding; in addition, there is a taper adjustment function, you can directly set some of the process requirements of the winding taper inside the controller.

Advantage

Tension controller adopts many advanced technologies in the world; a special microprocessor, high-speed 18-bit A/D converter, switching power supply, anti-interference automatic recovery technology, and PID without overshoot algorithm. With a fully digital design, it has the characteristics of high precision measurement and control, strong anti-dry worry, complete function, simple operation, etc.

1. fully digital design, no adjustable potentiometer, tension calibration process is simple, tension measurement is accurate, stable, and reliable. Measurement accuracy up to 0.2 level.

2. adapt to a variety of tension sensors as input signal use.

(1) can be applied to a micro-displacement special tension detector (input signal range is 200mv, the power supply is 15v).

(2) strain gauge tension detector (input signal range is 20mv, the power supply is 10v) can be used.

3. Adopt no overshoot PID algorithm, to ensure that the system starts/stops the process, tension-no overshoot.

4. With dual-axis switching function and point running function. The use of a highly adaptable switching power supply (85-264), to ensure long-term reliable operation.

5. The operation interface is very good and easy to operate. With an extremely high performance to price ratio.

Installation application

automatic tension controller can be inlaid, wall-mounted, and floor mounting. Our products have been widely used in packaging machinery, printing machinery, wire, and cable machinery, paper making machinery, plastic machinery, food machinery, textile machinery, glass machinery, woodworking machinery, electronic machinery, and other equipment industries. The tension controller is the most important control system on any machine using the coil as raw material, which can be divided into manual and fully automatic tension control: the manual controller is to adjust the clutch or brake excitation current in stages according to the change of the receiving or discharging coil diameter, to obtain consistent tension; the fully automatic tension controller is to measure the tension of the coil directly by the tension detector, and then the tension information is transmitted back to the tension controller as a tension signal. HW tension controller adopts many advanced technologies and has been widely used in papermaking, printing, packaging, film, textile, printing and dyeing, metallurgy, tire and rubber, wire and cable industries, and other related winding processing occasions.

Type

1. Automatic tension controller.

Fully digital design, no adjustable potentiometer, tension calibration process is simple, tension measurement is accurate, stable, reliable, measuring accuracy up to 0.2 level applicable to a variety of tension sensors as input signal use; can choose micro-displacement special tension detector (input signal range of 200mv, power supply for 15v) and strain gauge tension detector (input signal range of 20mv, power supply for 10v ). Using a proximity switch or rotary code to measure the roll diameter, can realize the function of roll diameter tension control or taper tension control. Serial communication function, optional RS485 or RS232 communication interface with PC, PLC to form a centralized system, the application of no overshoot PID algorithm to ensure that the system starts/stops process tension no overshoot. Control mode can be automatic or manual control, automatic/manual for trouble-free switching. With a two-axis switching function and point running function, the interface is very friendly, very simple to operate, easy to install, and with high-cost performance.

2. manual tension controller.

Adopt a digital display circuit, intuitive and clear. External signal control. Control mode for pulse width modulation switching type adjustment system. Auxiliary power output is available.

With overload instant short circuit protection circuit, stable output, safe and reliable with a highly adaptable switching power supply.

3. Semi-automatic tension controller.

Semi-automatic tension controller - the control device applies the cumulative thickness detection method semi-automatic control device before the control device set the initial diameter and material thickness, each time the rotation of the reel, from the initial value of the diameter minus the material thickness (put the roll) or plus the material thickness (winding) to calculate the current roll diameter. The proximity actuator for rotation detection is installed on the reel, and the result of the calculation is outputted to the magnetic powder clutch or magnetic powder brake used as an actuator with a voltage of 0 to 24V.

Features

1. Tension can be controlled by simple adjustment and operation that is.

2. Highly functional mode that can correspond to various conditions and is easy to use.

3. Ultrasonic actuator and touch lever can be used without the need for thickness and initial diameter setting by material category.