SU1336067A1 - Device for signalling the condition of actuating mechanism - Google Patents

Abstract

The invention relates to the automation of technological processes and is intended to be used as a display tool on mnemonic diagrams of the final positions and movements of the locking control and the like actuators. The aim of the invention is to increase the information content of the device. This goal is achieved by the fact that the device containing the elements OR 1, 2 and 3, the indicators 4,5,6 positions, the sensors 7 and 9 positions, the bus 10 Open, the trigger 11, the bus 12 Close, the trigger 13, the bus 14 Stop and a pulse generator 17, the elements AND-HEs 8.15 and 16 are introduced. When the actuator is in the closed state, the position indicator 5 is evenly lit. After the Open Light command is issued, the indicators 4 and 6 blink, and after the command has been executed, the 5 position indicator turns off. As soon as the actuator opens, indicators 4 and 6 are turned on evenly. If the Stop command is given before the full opening, the 4 position indicator will turn off, and the 6 position indicator will be illuminated with a steady light. When the actuator moves in the opposite direction, the 5 position indicator will blink. 1 il. sl 00 00 O5 about 05 H

Description

The invention relates to the automation of technological processes and is intended to be used as a means of displaying information on mnemonic diagrams of the end positions and movements of shut-off and regulating and similar actuators having control bodies of their final states only, and can be used in local and control systems in the gas, chemical, energy, engineering and other industrial sectors in those cases where signaling and the actuator is sufficient is not quantitative, but only qualitative characteristics representatively bottom state, carried EMA The plain devices using mimics for lighting displays.

The purpose of the invention is to increase the information content of the device.

The drawing shows the functional diagram of the device.

The device contains elements OR 1 - 3, position indicators 4-6, position sensor 7, element. AND-NO 8, 9 position sensor, 10 bus open, trigger 11, bus 12 Close, trigger 13, bus 14 Stop, elements AND 15 and 16, generator 17 pulses.

The device works as follows.

The initial state of its elements depends on the initial position of the actuators, as well as on previously issued commands. Let us take it for an initial starting position in which the executive mechanism is completely closed. In this case, the logic level O from the sensor 9 of the position through the element OR 2 causes the indicator of the 5 position to glow evenly. The position indicators 4 and 6 are not illuminated, so the levels 1 and the outputs of the AND-NOT elements 15 and 8 receive the logic level 1. Indicators 4–6 positions start to light when the logic level O arrives at them. When the Open command is issued via bus 10, Open trigger 11 switches to the forward state. Indicators 4 and 6 of the position of the light TF flashing light, because the potential (continuous) level of logic 1 from the trigger 11 and the pulse from the generator 17 pulses arrive at the input of the NAND 15 element. The flashing light of the 4th and 6th position indicators indicates the passage of the Open command and the movement of the actuator towards its opening. The 4 position indicator will go out after changing the state of the 9 position sensor.

As soon as the actuator is fully opened, the level enters from the sensor 7.

logical O and position indicators 4 and 6 are turned on evenly, to the evidence on the mnemonic about the full opening of the actuator. If, until the actuator is fully opened, the Stop command is given via the bus 14 Stop, the actuator stops and the trigger 11 switches to the inverse position. As a result, the 4 position indicator is turned off, and the 6 position indicator shines evenly. The half-glow of the mnemonic is qualitatively signaled about the intermediate half-open static state of the actuator. In the case of a feed through bus 12, the Close Close Trigger 13 command is closed, the inverse goes to the forward state, with the result that the 5 position indicator lights up with a blinking light, which indicates that the actuator is moving in the direction of closure. If the actuator comes to

of its final position Closed, then the 5 position indicator switches to a steady glow, indicating the final closed state of the actuator.

If, during the movement of the actuator, a Stop command is given towards its closure, the indicator 5 lights up, and the indicator 6 turns on, signaling the semi-open state of the actuator.

Claims (1)

Invention Formula The device for signaling the states of the actuator, containing the first position sensor, the output of which is connected to the first input of the first OR element, the output of the apro is connected to the first position indicator, the second position sensor, the output of which is connected to the first inputs of the second and third OR elements, the outputs of which are connected respectively to the second and third position indicators, the second inputs of the second and third elements OR are combined, the pulse generator, two triggers, the bus Open, the bus Close and the bus St n otlichayuschee- the fact that, in order povsheni informative devices, it vveelementa AND-NO, the tire Otk- with the first input of the first trigger, the output of which is connected to the first input of the first NAND element, the output of which is connected to the second input of the second OR element, Three days dig is connected Close is connected to the first input of the second trigger, the first output of which is connected to the first input of the second NAND element, the output of which is connected to the second input of the first OR element, the Stop bus is connected to the second inputs of the first and second triggers, the second outputs of which are connected respectively to the first and the second inputs of the third NAND element, the output of which is connected to the third input of the third element OR, the sensor outputs of the first position K, the sensor of the second position are connected to the third and fourth inputs respectively Another element of NAND, the output of the pulse generator is connected to the second inputs of the first 1 and second elements of NAND.