SU1152013A1 - Device for checking and controlling dispersed objects - Google Patents

Abstract

The invention relates to remote control systems and can be applied to control a group of artesian wells on gas pipelines. The purpose of the invention is to increase the reliability of the device. To achieve the goal. A source of direct current is introduced into the device, one output of which is combined with the first output of the AC power supply supplying the circuit and the other output is connected to the third terminals of the control units. As a result, when the alternating voltage disappears, the on state of those relays that are psuZ; voltage, and the operation of the circuit is not disturbed. 1 silt

Description

The invention relates to remote control systems and can be used to control a group of dispersed objects operating under conditions of possible disappearance of the supply voltage. The invention may 6bi; rb applied to devices in which during their operation and possible disconnection of the power it is necessary to preserve their state.

The purpose of the invention is to increase the functional reliability of the device.

The drawing shows a diagram of the device.

The device contained a power supply unit 1, a shutdown unit 2, a control unit 3-7, power supply terminals 8j-e, a junction block, performed on diodes 10-13, a time relay 14, a control relay 15, a time relay 16, an intermediate relay 17, on button 18, time relay 19, intermediate relay 20, shutdown button 21, time relay 22, intermediate

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a relay 23, a time relay 24, an intermediate relay 25, a time relay 26, an intermediate relay 27, a time relay 28, an intermediate relay 29, a time relay 30 and an intermediate relay 31, a control signal setpoint device 32 and a voltage control unit 33.

The control unit for distributed objects operates as follows.

When the button 18 is turned on, the control object is activated.

Claims (1)

from relay 16 and 17 and prepare the switching on of blocks 3-7 and at the same time self-blocking for the time of actuation of time relay 16. In block 3, relays 22 and 23 are triggered and also self-blocking via contact 23. This will turn on the first control object (in the drawing shown). Then, after the contact contacts of the time relay 22 are processed, a time delay is triggered by the relays 24 and 25 in block 4 and the next control object will be turned on, etc. When objects are disconnected using button 21, relays 19 and 20 are triggered and, through contacts of relay 20, the relay blocking circuits in blocks 4, 5 and 6 open. In this connection, in parallel with the contact of relay 20, in each control unit 3-7, a time relay contact with a predetermined delay; each previous block will be disconnected after the next time relay is triggered. When the alternating voltage disappears, the turn-off time 14 is de-energized and the control relay 15 closes its contacts 14 and 15 and the relay 17, whose contacts are open. At the same time, the positive potential of the constant voltage source, combined with the common wire of the alternating voltage source, through closed contacts 14 and 15 and the diodes of isolation unit 9 will be fed to the terminals of the control units. In this case, the windings of those of the relay 23 25, 27, 29 and 31, which are turned on before the alternating voltage disappears, are not de-energized, since the diodes of the block 9 bypass the time relay contacts 22, 24, 26 and 28 and supply power through the self-blocking contacts . The windings of relays 22, 24, 26, 28 and 30 when the alternating voltage disappears are de-energized. When the alternating voltage is restored, after some time, the contacts of those time relays-22, 24, 26, 28 and 30, in which the intermediate relays 23 , 25, 27, 29 and 3) were under voltage, to continue the process of turning on the objects, the button must be restarted) 8, Wipe was described by manual control of turning on and off the objects. This clause can be used to control objects located at a distance from each other. In this case, the contacts of the control relay are connected by wire, with the dispersed objects. The signal adjuster 32 can be located at a distance from the switch-on units and the 9T switches, and the signals from its corresponding outputs can be 1. served parallel to buttons 18 and 21 and provide remote on and off objects. Diodes 10–13 in this device provide isolation of blocks 3–7 during normal operation of equipment due to their counter-switching between the terminals of these blocks, Dn — ensuring the operability of the device requires the response time of the closing contact of relay 15 to be shorter than the release time of intermediate relays 23 , 25, 27, 29, and 31, the time delay for activating the opening contact of relay 14 was longer than the response time of each of the closing contacts of intermediate relays 23, 25, 27, 29, and 31 in blocks 4–7. In addition, intermediate relays 23, 25, 27, 29 and 31 should have a large inductive and low resistance {compared with time relays 22, 24, 26, 28 and 30 to reduce the amount of current flowing through them in the case of an open state No keys connected to the relay coils in each of the control units 3-7. An apparatus for controlling dispersed objects, containing in parallel and an AC voltage source with its first and second terminals, an on / off unit and a control unit according to the number of objects, characterized in that, in order to improve the functional reliability of the device, an isolation unit is inserted into it. made on the diodes, the control unit voltage on the time relay and intermediate relay, the unit of control signals and the source of constant voltage, one of which is combined with the output of the alternating voltage source, another terminal to the third outputs of the control units, the first and second outputs of the windings of the relay of the voltage monitoring unit are connected in parallel to the outputs of the alternating voltage source, the second outputs are connected via parallel connected disconnecting contacts of the relay to the anodes of the separation unit diodes, the cathodes of which are connected to the fourth terminals of the respective control units, the first output of the control signals generator is connected 19 to the same output voltage. 5o the second and third outputs of the setting unit of the signal unit of the switch-on unit and the control linkals. to the third output of the switch-off unit. 1152013,