SU1115079A1 - Control device for production line - Google Patents

Abstract

A DEVICE FOR CONTROLLING A TECHNOLOGICAL LINE containing a first relay, the first winding terminal of which is connected to the first power supply bus, Start buttons and Stop buttons, is characterized in that, in order to expand the functional capabilities of the device, memory elements are added to it. and indicators on the number of Start buttons, turnips, time, second and third relays, a signaling device, a second power supply bus through the opening contact of the corresponding Start button connected to the first head of the corresponding element The output of each memory element is connected via an appropriate element to the second output of the first relay, and through a corresponding indicator to the first power supply bus, which is connected to the first output of the opening contact of the first relay through the winding of the second relay, the second output of which parallel connected closing contacts of the Start buttons and the first closing contact of the second relay are connected to the second bus of the power source, which is connected to the first output terminal via the second closing contact of the second relay The time relay winding, the second terminal of which is connected to the first bus and the power supply coil, is signaled and the disconnecting contact is connected in series and connected parallel to the time coil of the third relay and the closure contact of the time relay, the second power source through the appropriate buttons The stop is connected to the second inputs of the corresponding memory elements.

Description

The invention relates to the automation of technological processes and can be used to control an extensive automatic line with a complex cycle of operation and complex setups with several control panels located on line sections. A device for controlling a process line, containing start and stop buttons, a relay L is known. A disadvantage of this device is the absence of mutual electrical interlocking, light and sound warning signals about start and stop from different control stations. Those. narrow functional voz- possibilities The closest in technical essence to the present invention is a device for controlling a line containing a relay, the first winding terminal of which through serially connected Stop buttons is connected to switches and buttons that are connected to the first power supply bus, the second bus of which is connected to the second output winding relay 2. The known device has insufficient functionalities and capabilities. The purpose of the invention is to expand the functionality. I - - The goal is achieved in that the device for controlling the process line, containing the first relay, the first winding terminal of which is connected to the first power supply bus, Start buttons and Stop buttons, introduces memory elements, isolation elements and indicators the number of Start buttons, a time relay, the second third relay, a signaling device, the second bus to the power supply through the opening contact of the corresponding Start button is connected to the input of the corresponding memory element, the output of each is through The isolation wiring is connected to the second terminal of the winding of the first relay, and through a corresponding indicator to the first power supply bus which, via the winding of the second relay, is connected to the first output of the disconnecting contact of the first relay, the second output of which is connected to the start contacts and the first closing contact The second pejje is connected to the second power supply bus which, through the second contact of the second relay, is connected to the first terminal of the time relay, the second terminal of which is connected to the first bus power source, switch and the time relay break contact connected in series and connected in parallel with the relay winding time series connected winding of the third relay and the closing contact of the time relay, the second bus of the power supply through the respective stop buttons podyu1yuchena to second inputs of the respective memory elements. The drawing shows a diagram of the device. The device contains 1 memory cells, 2 Stop buttons, disconnecting contacts 3 and closing contacts of 4 Start buttons, relay 5 with opening contact 6, elements of 7 isolators, indicators 8, relay 9 with short contacts 10 and 11, time relay 12 with closing contact 13 and opening contact 14, alarm 15 and relay 16. Each memory element is made of thyristor 17 and resistors 18 and 19. The device for controlling the line works as follows. The initial start of the line is possible from any start button Start. When the Start button is pressed, the power supply is applied to the relay 9. The relay 9 with its closing contact 10 becomes self-blocking and through the opening contact 11 supplies the power voltage to the relay 12 time and through the opening 14 to the alarm 15, warning maintenance personnel on the start line. After the required time has expired by the disconnecting contact 14, the detector 15 is turned off and the supply voltage is applied to the relay 16 through the closing contact 13, which ensures the start of the line through the technological cycle. IF it became necessary to stop the line from any control panel, press the Stop button. In this case, a positive potential of the power source is supplied to the control electrode of the thyristor 17 of the memory cell 1 through the corresponding

a resistor 18 is sufficient to turn on the thyristor 17,

The thyristor 17 is supported and held further in the on state 7 of the research institutes, and the indicator 8 is turned on and the relay 5 is activated.

The indicator provides an alarm on all control panels about which console the line was stopped from.

Relay 5 with its break contact b ensures the disconnection of relay 9, which, having switched off, ensures the line to be stopped. Time relay 12, having disconnected, by its disconnecting and closing contacts 14 and 13, provides preparation of the circuits of the signaling device 15 and the relay 16 for the subsequent start-up of the line.

The line can be restarted only from the console from which it was stopped using the 3 and 4 Start buttons. When this happens, the thyristor 17 is turned off and, consequently, the corresponding indicator 8, as well as relay 5, which by its opening contact 6 restores the power supply to relay 9 and the line starts up in the same way as described above.

It is possible to stop the line with several consoles. In this case, the thyristors 17 will be turned on in several memory cells 1, and relay 5 will receive power in parallel through three channels.

As the readiness of the line for start-up is restored by the corresponding buttons, the ban on start-up will be successively lifted by turning off the corresponding thyristors in the corresponding memory cells 1. The start of the line will occur from the console, the cell 1 of whose memory will be disconnected last.

The economic effect of the use of the invention is due to the above technical features.

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Claims (1)

DEVICE FOR MANAGING A TECHNOLOGICAL LINE, containing the first relay, the first winding of which is connected to the first bus of the power supply, the Start button and Stop button, characterized in that, in order to expand the functionality of the device, memory elements, isolation elements and indicators are introduced into it by the number of Start buttons, the time relay, the second and third relays, the annunciator, the second bus of the power source through the opening contact of the corresponding Start button is connected to the first input of the corresponding memory element, output d of each memory element through the corresponding element, the isolation is connected to the second terminal of the first relay, and through the corresponding indicator to the first bus of the power source, which is connected through the winding of the second relay to the first terminal of the NC contact of the first relay, the second terminal of which is connected through the parallel the contacts of the Start buttons and the first make contact of the second relay are connected to the second bus of the power source, which is connected through the second make contact of the second relay to the first output of the relay coil the menu, the second output of which is connected to the first bus of the power supply, the signaling device and the opening contact of the Q time case are connected in series and connected in parallel with the relay coil-time and connected in series with the winding of the third relay and the closing contact of the time relay, the second bus of the power source is connected via the corresponding Stop buttons to the second inputs of the corresponding memory elements.