SU1359790A1 - Device for signalling states of two-position actuating mechanism - Google Patents

Abstract

The invention relates to signaling devices used to monitor the state of two-position actuators, and can be used in local and centralized remote and automatic control systems, actuators (eg, 03030 740 measures, valves) which are equipped with extreme state sensors. niy The aim of the invention is to expand the field of application of the device by providing signaling in the dark shield and light shield modes. The goal is achieved by the fact that a device containing a pulse generator 3, elements AND 4 and 5, elements OR 6 and 7, amplifiers 8 and 9, light boards 10 and 11, terminals 12, 13, 16 and 17, entered elements S1I - NOT 1 and 2 and terminals 14 and 15. The device allows, depending on the signal supply to terminals 12, 13, 14, 15, 16 and 17, to signal the position of the actuator on two boards 10 and 11 in the dark shield modes and light billboard, and also when using only one board. 1 il. , i (L 3 TH Hg) JIf co-eats CO / 70 g i

Description

The invention relates to signaling devices used to monitor the states of two-position actuators, and can be used in local and centralized remote and automatic control systems whose actuators (for example, valves) are equipped with extreme state sensors.

The purpose of the invention is to expand the field of application of the device by providing signaling in the modes

dark shield

and light shield

The drawing shows a diagram of a predictable device.

The device contains the elements OR-E 1 and 2, a generator of 3 pulses, elements A and A-and 5, elements OR 6 and 7, silicate 8 and 9, illuminated panels (warning lamps) 10 and 11 and terminals 12-17.

The device is set to work in dark shield mode, in bright ita mode and using only one scoreboard.

In the dark shield mode, the device operates as follows.

The initial state is the closed state of the actuator, which is characterized by the arrival of a command signal to terminal 14 and a signal on the state of the actuator to terminal 16. In view of the fact that the signal from terminal 14 is fed to the input of the OR-NOT 1 element, and from terminal 16 - to the input of the element OR NOT 2, Hct the output of these elements OR NOT 1 and 2 signals are missing, and the board 10. and 11 are off. This means that the actuator is closed and its state corresponds to a command signal.

To change the state of the actuator, the command signal first arrives at terminal 15 while simultaneously removing the command signal from terminal 14. After removing the command signal from. input element OR-NOT 1 signal from its input enters the input element AND 4, creating a condition for the passage of pulses from the generator 3 pulses through the elements AND 4, OR 6 and the amplifier 8 on the board 10, ensuring its flashing light. The state of the display 11 from the input of the signal from terminal 15 to the input of the element OR NOT 2 has not changed. how

only the actuator leaves the closed state, removes the signal from terminal 16, the signal at terminal 12 will be absent until the actuator enters the open state. Removing the signal from the input of the element OR NOT 2 does not ensure the formation of a signal on its

output, as the other input of the element OR NOT 2 receives a signal from terminal 15. A disabled board 11 and a blinking board 10 signifies that the actuator is in a closed or intermediate state and has not yet come in line with the incoming command to open it. .

With the arrival of the actuator in the open state, a signal is received through terminal 12 to the input of the element OR NOT 1, which leads to

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In this case, the output signal at element 5 and disappears. The signal from terminal 12 to the input of the element OR 6 generates a signal at its output, which through the amplifier 8 ensures that the board 10 is evenly lit. The state of board 11 does not change. The switched off board 11 and the steady glow. A table 10 means that the actuator is open and its state corresponds to the command signal

After the command signal arrives at terminal 14, the state of the board 10 is maintained, and the board 11 will be flashing. A steady luminescence of the board 10 and a blinking luminescence of board 11 means that the actuator is in the open state, but a command signal is received to close it. As soon as the actuator leaves the open state, the scoreboard 10 is turned off, and the status of the scoreboard 11 remains. The switched off board 10 and the blinking glow of board 11 means that the executive mechanism has moved away from the open state, but the closed state corresponding to the command signal has not yet been received. With the arrival of the actuator in the closed state, the board 11 is turned off. The disabled state of the scoreboard 10 is also preserved, which means that the executive mechanism is closed and its state corresponds to a com- mand & nd signal.

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in the light shield mode, the device operates as follows.

We take the closed state as the initial state, which is characterized by the arrival of a command signal to terminal 14 and an actuator status signal to terminal 17. In view of the fact that the signal from terminal 14 goes to the input of the OR-H element 1, and from terminal 17 to input element OR NOT 2, at the output of these elements there are no signals, therefore, the board 10 is turned off. The signal from terminal 17 to the input element OR 7 generates a signal at its output, which provides a steady glow of the board 11. The disabled status of the board 10 and the steady glow of the board 1 1 means that the actuator is closed and its state corresponds to the incoming signal;

To change the state of the actuator, a command signal is sent to terminal 15 while simultaneously removing the command signal from terminal 14. After removing the command signal from terminal 14 and, therefore, from the input of the OR-NOT 1 element (the signals to the other inputs of the OR They do NOT receive a signal from its output. The input goes to the input of the AND 4 element, thereby creating the condition for the passage of pulses from the generator 3 on the board 10, ensuring its flashing luminescence. The status of the board 11 from the arrival of the signal from the terminal 15 to the input

OR-NOT 2 element does not change, so o-40 as at the input of the element. OR-NOT 2 there is a signal from terminal 17. A blinking light on the board 10 and an even light on the board 11 means that the actuator is closed, but does not match - Vetuet incoming team to open. As soon as the actuator leaves the closed state, the signal from terminal 17 will be removed, but the signal on terminal 12 will be absent before the actuator enters the open state. Removing the signal from terminal 17 from the input of the OR-HE 2 element does not form signal at its output, since the signal from terminal 15 is sent to the other input of the OR-NOT 2 element. Therefore, the signal from the output of the AND 5 signal will not be

1359790

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the terminals 17 from the input of the element OR 7 causes the board 11 to turn off. The board 11 that is turned off and the flashing panel 10 light means that the actuator is in a transitional state from closed to open.

With the arrival of the actuator in the open state, the signal through terminal 12 enters the input element IfflH-HE 1, which leads to the removal of the signal at its output. Signal flow from terminal 12 to the input of the element OR 6 generates a signal at its output, ensuring an even glow of the board 10. The state of the board 11 does not change. The disabled board 11 and the steady glow of the board 10 means that the actuator is open and its state corresponds to a command signal.

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Considering the operation of the device, make sure that after removing the command signal from terminal 15 and the arrival of the command signal to terminal 14, the state of the board 10 remains and the board

flashing light. The steady glow of the Board 10 and the flashing glow of the board 11 mean that the actuator is in an open state, but a command signal is received to close it. As soon as the actuator moves away from the closed state, the signal is removed from terminal 12, which causes the switchboard 1-1 to switch off, and the state of the board 11 remains. The display of 10 and the flashing of the display of 11 indicates that the actuator has moved away from the open state, but complies. a closed-state command, which has an incoming command signal, has not yet received a signal, i.e. is in an intermediate state. With the arrival of the actuator in the closed state, a signal arrives at terminal 17, which causes the board 11 to glow with an even light, and the state of the board 10 remains. Switching off the board 10 and the steady glow of the board 11 means that the actuator is closed and its state corresponds to a command signal.

I In the alarm mode, one board

the device works as follows

The device can also carry out a sigialnzatsgao on the polsepia of the actuator by one board In this case, the signal about the closed state of the additional mechanism arrives at terminal 13 (16). The arrival of the signal from terminal 13 (16) to the input of the SHSh-HE 1 (2) element leads to the removal of the signal at its output, as a result of which there are no output signals from the AND 4 (5), 1-SHI 6 (7) elements and the amplifier 8 (9), the board 10 (11) is turned off. The off state of the board 10 (11) means that the actuator is in the closed state. As soon as the actuator leaves the closed state, the signal at terminal 13 (16) disappears, but the signal at terminal 12 (17) is not yet received. The absence of input signals on the element OR-PE 1 (2) allows to form a signal at its output, which ensures a flashing glow of the board 10 (11). This means that the actuator is in a transitional (intermediate) state. When the actuator goes into open state, a signal is sent to terminal 12 (17). The signal at the output of the element G1PI-NOT 1 (2) disappears, therefore, there will also be no output signals for the elements I 4 (5). The signal from the input of the terminal 12 (17) to the input of the element OR 6, (7) generates a signal at its output, which ensures an even glow of the board 10 (11). This means that the actuator is in the open state.

Editor M. Andrushenko

Compiled by E. Budarina

Tehred M. Khodanich Proofreader I. Muska

Order 6154/50 Circulation 544 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

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Claims (1)

Invention Formula A device for signaling the states of a two-position actuator, containing the first terminals y, which is connected to the first input of the first OR element, the output of which through the first amplifier is connected to the first signal panel, the second terminal that is connected to the first input of the second OR element, output which through the second amplifier is connected to the second light board, a pulse generator, the output of which is connected to the first inputs of the first and second elements I, the outputs of which are connected to the second inputs of the co respectively, the first and second RSHI elements, the third and fourth terminals, characterized in that, in order to expand the field of application of the device by providing signaling in the dark shield and light shield modes, two OR-NOT elements and two terminals are inserted into it, the first terminal is connected with the first input of the first element OR — NOT, the output of which is connected to the second input of the first element AND, the third and fourth terminals are connected respectively to the second and third inputs of the first element OR — NOT, the second terminal is connected to the first input second I1SH-NO element whose output is connected to a second input of the second AND element, fifth and sixth terminals are connected respectively to the second and third inputs of second OR-NO.