SU1434471A1 - Alarm device - Google Patents

Abstract

The invention relates to the technology of automatic control, alarm and registration processes, for example, the operation of the first in a row technological protection in spark and explosion hazard environments. The aim of the invention is to expand the field of application of the device by providing galvanic isolation of circuits. The goal is achieved by the fact that a device containing contact sensors 1, resistors 2, memory elements 3, first power supply 9 and signal lamps 7 are inserted into relay 5 with a break contact 6, return button 4 and second power supply 8, and element 3 The memory is made on a thyristor optocoupler. The activation of one of the contact sensors 1 leads to the activation of the photothyristor of the optocoupler 3, which turns on the corresponding signal lamp 7 and relay 5. The relay opens its disconnecting contact 6 by disconnecting the contact sensors 1 from the power supply 9. The subsequent activated contact sensor 1 does not cause the signal lamp 7 to turn on. 1 Il.

Description

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The invention relates to automatic alarm control and registration of processes 5, for example, for isolating and recording the response of the first process protection and spark-proof and explosion-hazardous environments.

The aim of the invention is to expand the ffl-ie device application area by galvanically isolating input and output circuits.

 The drawing is a schematic diagram of the signaling device.,

The device contains contact, sensors, 1 control, resistor G2e memory elements 3 performed on thyristor optocouplers, a return button 4, p 5 locking with a release contact b "signal lamps 7, power supply sources 8 and 9.

The alarm device operates as follows.

In the initial state, the voltage from the positive pole of the power supply source 9 through the clamping contact 6 relays, 5 locks to the closing contact sensors 1 control,

The np | i short circuit of any contact of the contact sensor 1 of the control current from the polyoscible field: the power source 9 through the resistor 2 flows through the LED of the corresponding thyristor optics 3 to open it, while the current from G1 Positive: The new pole of the power supply 8 flows through the return button 4 through the open thyristor optocoupler 3 photoristor and turns on the corresponding warning lamp 7. At the same time, the lock relay 5 is activated and opens its contact 65 which opens the circuit.

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Tanya coming from the positive pole of the power source 9 to the terminals of the contact sensors 1 control.

When the contacts of any next contact sensor 1 are closed, the remaining signal lamps 7 do not turn on. The device is brought to the operating status by the return button 4.

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Claims (1)

Invention Formula A signaling device containing control contact sensors, the first signals of which are combined, the second output of each contact sensor is connected to the first view of the corresponding resistor, signal lamps, the first outputs of which are combined, the first power supply and memory elements by the number of contact sensors, different in order to expand the area of application —the device by providing galvanic isolation of input and output circuits; a return button, a second power supply and a relay are entered into it, and The memory is made of thyristor optocouplers, the first output of the first power supply through the disconnecting contact of the relay is connected to the first output of one of the contact sensors, the second leads of the resistors through the LEDs of the corresponding optocouplers are connected to the second output of the first power source, the first output of the return button through the thyristor photo thyristors optocouplers connected to the second of the respective signal lamps, the first output of one of which through the relay winding is connected to the first of the second power source, W vshod swarm is connected to the second terminal of the reset button.