In modern equipment applications, such as the watch control TPC8-8TD type is the most used model, a total of eight input and output control terminals, can control eight cylinder solenoid valves at the same time, can easily and quickly achieve automatic control of the equipment, It can also control the start of a single solenoid valve or multiple solenoid valves, and stop various automated program operation functions. It is easy to use, requires no complicated programming, and can quickly complete the required timing control program function in tabular settings. Unfamiliar with programming operators.
Second, the actual application function:In the simultaneous operation of controlling eight cylinders, each cylinder is controlled by a solenoid valve. Two push button switches are pressed to press the device to start operation. During the operation, all the cylinders are stopped by pressing the stop switch.
When the first cylinder starts to work after starting, the second cylinder starts to operate for 1 second after about one second, and the fourth cylinder starts to work for two seconds when the third cylinder works for one second, and the third cylinder operates for four seconds. Second, the fifth cylinder operates for one second, the sixth cylinder operates for two seconds, the seventh cylinder operates for one second, the eighth cylinder operates for one second, and the first cylinder stops operating after one second delay. At this moment, all cylinders are completed. . Run the loop again after starting again.
In the equipment control, the role of cylinder control can not be ignored. The cylinder is controlled by solenoid valve. It has many advantages such as simple and easy to use, quick response and convenient installation. The general solenoid valve can be controlled by programmable controller plc, single-chip microcomputer series and industrial computer. A variety of ways to control, the following several control schemes to make a simple comparison.
1. The programming controller plc has the characteristics of complete functions, high reliability, and compact structure. It is necessary to realize the required performance by programming ladder diagrams and other programming forms.
2. The industrial control unit is equipped with powerful, flexible and easy to use, with a large number of control boards and configuration software support, in line with a powerful control system system.
3. In the application of single-chip microcomputer, the single-chip microcomputer has the advantages of flexible application and economical application, but it needs special design, and the time is long, and the reliability and anti-interference performance need to have a mature excess.
The above three control schemes have their own characteristics, but they must be controlled by programming or configuration methods, which is very suitable for professional technicians. There is a simpler and easier to use table program controller - watch control, the biggest advantage of this controller is that it does not require programming, and the required control functions are realized through simple operation settings. It is more suitable for the control of the solenoid valve, and the device control program can be completed in a short time. Therefore, the watch control TPC8-8TD type is a controller that is preferentially used in the device control cylinder.
The watch control has the following characteristics:
1. Meter control TPC8-8TD type has eight input and output. The input can be directly connected to the switch and sensor. It is easier to realize manual switch control. The eight-way output can meet the control function of the multi-channel solenoid valve.
2, 24V power supply can directly drive 24V solenoid valve, the circuit is simple and easy to use. The timing control of the controller is powerful. Each action can set the delay time and working time. It can be used in various cylinder control devices by mouse operation, easy to operate and without programming.
3. The control system consists of the application table control, the circuit is simple and easy to use, and the various controls basically adopt a unified wiring mode. The functions achieved can only be completed by setting the required functions on the function setting table, and have a unique single. The special working mode forms such as step, pause, and full stop make debugging easy and easy to use, and it is very simple to complete the control of the device in a small amount of time.
Third, the working principle and settings of the controller:The performance of the cylinder control is mainly divided into start, stop and program operation control. Take the eight-way cylinder control as an example. This type is the simplest example of sequential drive function. The eight solenoid valves are sequentially started, and each cylinder is timed. Different. In order to make the control simple and easy to operate, it is completed by simultaneous start and various timing methods.
Fourth, the wiring schematic:The following figure is a schematic diagram of the wiring principle for controlling the eight-way solenoid valve:
In the industrial automation control field of various industries, such as: mechanical automation control, motor control, textile machinery control, electrical control, food machinery control, energy saving control, lighting control fountain control, liquid level control, school science knowledge, etc. .
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