SU1244685A1 - Device for reproducing light signalling - Google Patents

Abstract

The invention is intended for use in telemechanics and remote signaling systems. The purpose of the invention is to increase the reliability and simplification of the device. In the initial state, all the thyristors are open and the warning lamps are hot, the diodes are closed, since the source voltage is greater than the voltage of the pulses from the source. When the contacts are switched, the thyristor is closed, and the diode is unlocked, the lamp lights up with a blinking light, the relay is activated. The signal is acknowledged by pressing the acknowledgment button, with this, the thyristor is unlocked, the lamp is illuminated with a steady light, and the relay is automatically removed from the self-blocking, intended to activate the alarm. The resistor and capacitor form an interference suppression chain. 1 il. c (O (/)

Description

The Bofi light signaling player is intended for use in telemechanics and remote signaling systems.

The aim of the invention is to increase the reliability and simplify the device.

The drawing shows the circuit diagram of the device.

The light signaling device contains switching signaling contact 1, signaling lamps 2 and 3, thyristor 4, diodes 5 and 6, resistor 7, capacitor 8, closing contact 9 ,, 1 acknowledgment button, disconnecting terminal 9.2 of acknowledgment button, resistor 10, relay P with the closing contact P., the source 12 of the pulse voltage, the relay 3 with the closing contacts 13.1 and 13.2, the source 14 of the constant voltage.

For reliable operation, the device must comply with

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source voltage 14; voltage drop on thyristor 4 in the open state;

impulse voltage value of source 12.

In the initial state, all the thyristors 4 are open and the signal lamps 3, connected through them to the source 14, are heated with a steady light; diodes 6 are closed, because the condition is satisfied (R; the current from source 2 is zero. When the state of the alarm object changes, the signal contact I switches, and during its flight the current flowing through the corresponding thyristor 4 is briefly interrupted, thereby closing it. As a result, the diode 6, relay 11 is triggered, then relay 13, and the corresponding signal lamp 2 lights up with flashing light from source 12. The signal can only be quenched by unlocking the thyristor 4, for which you need to press the acknowledgment button. yuschy 9.1 contact button and raz35

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with a closing contact, a second relay with two closing contacts, distinguished by the fact that, in order to increase reliability and simplify the devices, the first and second resistors, a capacitor, opening the acknowledgment button, and the second diode and a thyristor, the cathode of which is connected to the cathode of the first diode with the first terminal of the first signal lamp, the second terminal of which is connected to the second terminal of the switching signal contact, the third terminal of which is connected to the second terminal of the second signal lamp The control electrode of the thyristor is connected to the cathode of the second diode, the anodes of which of all the signaling cells are combined and connected to the signaling source of the voltage source and connected to the acknowledgment button and the first resistor which through

To the current diode 5, a control current flows - the SS winding of the second relay is connected to

ky, the thyristor 4 is opened, and the corresponding signal lamp 2 switches to a steady light; at the same time

another output of the closing contact of the first relay and through the sequence connected by the first closing contact

removed from the self-locking relay 13, designed to turn on the common light and sound signals. Interference chain consisting of

a resistor 7 and a capacitor 8, it is established if the device uses low-current thyristors 4, possessing high sensitivity, to prevent them from spontaneous opening due to electromagnetic interference.

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Claims (1)

Invention Formula A light signal reproducing device comprising pads alarms, each of which contains a first diode, two signal lamps, the first outputs of which are combined, and a switching signal contact, the first outputs of the switching signal contacts of all the alarm cells are combined and connected to one output of the closing contact of the first relay, sources of DC and pulse voltages, are common kin) 1x combined, the button is KVI. with a closing contact, a second relay with two closing contacts, characterized in that, in order to increase the reliability and simplify the device, the first and second resistors, resistors, capacitor, opening contact of the acknowledge button are inserted into it, and signaling - the second diode and thyristor, the cathode of which is connected to the cathode of the first diode and to the first output of the first signal lamp, the second output of which is connected to the second output of the switching signal contact, the third output of which is connected to the second output of the second The signal lamp, the thyristor control electrode is connected to the cathode of the second diode, the anodes of which are all the alarm cells combined and through the serially connected make contact of the acknowledgment button and the first resistor are connected to the anodes of the thyristors of all the alarm cells and a positive bus voltage source S winding of the second relay is connected to another terminal of the closing contact of the first relay and through the first closing terminal 311244 tact of the second relay and disconnecting contact of the acknowledgment button - with one output of the closing contact of the first relay, which through a parallel connected second resistor and capacitor is connected to the anode of the second diode of the first signal cell 685 4 The anodes of the first diodes of all the signaling cells are combined and, through a parallel-connected winding of the first relay and the second closing contact of the second relay, are connected to the positive bus of the voltage source.