RU1803926C - Multipoint signaling device - Google Patents

Description

The invention relates to automatic alarms and is intended for use in control systems for controlling a process, in which TOJpOM involves an unlimited number of different sensors of temperature, pressure, level, etc., as well as a large number of actuators such as pumps, fans, electric shutters, etc.

The purpose of the invention is to increase the functional reliability of the device when the operator enters the program into the technological process, in which a large number of sensors, equipment with different processing times of the input program are involved, for; due to the presence of an audible alarm, in addition to light, which completely eliminates the loss of information about the state of the process.

The drawing shows a circuit diagram of the device.

The device for multipoint signaling comprises a program setting unit 1 with a switch 2 (programs), the movable contact 3 of which is connected to the first (positive) bus 4 of the constant and pulsating voltage supply 5.

Each fixed contact 6, 7 of switch 2 is connected to the second (common) bus 10 of power supply 5 through the corresponding windings 8 and 9 of the relay repeaters.

The voltage of the power supply 5 of the power supply on the first bus 4 through the short-circuit

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contacts 11, 12 of the respective relay repeaters are fed to the inputs of the sensor unit 13.

The output of the sensor unit 13 through the winding 14 of the program set relay is connected to the second bus 10 of the power supply 5.

The bus 15 of the pulsating voltage of the power source 5 is connected through the make contacts 16, 17 of the respective relay repeaters to the corresponding inputs of the diode decoder 18.

The outputs of the diode decoder 18 are connected to the corresponding contacts 19, 20 of the process sensors of the signal cells 21, 22,

The composition of each signal cell 21, 22 includes a signal lamp 23 ,, 24, which on the one hand is also connected to the corresponding output of the diode decoder 18, and on the other hand to the second bus 10 of the power supply 5.

The second terminals of the contacts 19, 20 of the process sensors of the signal cells 21, 22 are connected to the first bus 4 of the power supply 5.

The bus 15 of the pulsating voltage of the power supply 5 through the sequential connection of the make contact 25 of the program set relay and each of the make contacts 26, 27 of the respective repeater relays is connected to the corresponding signal lamps 28, 29.

The first bus 4 of the power supply 5 through the series connection of the NC contact 30 of the program set relay and the same NO contacts 26,27 of the repeater relay is also connected to the signal lamps 2, 29.

On the other hand, the signal lamps 28, 29 are connected to the second bus 10 of the power supply 5.

The time relay unit 31 with an audible alarm with its inputs through the corresponding NO contacts 32, 33 of the repeater relays and the NO contact 34 of the program set relay connected in series with them is connected to the first bus 4 of the power supply 5,

On the other hand, the power terminal of the time relay unit 31 with an audible alarm is connected to the second bus 10 of the power supply 5.

The diodes 35, 36, 37 in the program setting block 1 are connected in parallel with the corresponding windings 8 and 9 of the relay repeaters and 14 of the relay of the program set 10.

A device for multipoint signaling operates as follows,

The operator by the switch 2 of the program unit 1 enters one of the programs.

Consider the operation of the device when the contacts 3 and 6 of switch 2 are closed.

Under this condition, in the program unit 1, the relay repeater 8 is activated.

Through the make contact 16 of the relay-repeater 8, the pulsating voltage bus 15 is connected to the corresponding input of the diode decoder 18 and through its diodes is supplied to the signal lamps 23 and

0 24 signal cells 21 and 22.

Through the make contact 11 of the relay-repeater 8, the first bus 4 of the power source is connected to the corresponding input of the sensor unit 13. At the output of the unit

5 sensors 13, a supply voltage appears, which, passing through the disconnecting, parallel-connected contacts of the technological sensors involved in the input program, will turn on the program dial relay 14.

In this case, the NO contact 30 of the program set relay 14 opens.

Through the make contact 25 of the program set relay 14 and the make contact 26 of the relay repeater 8 connected in series with it, the pulse voltage bus 15 is connected to the signal lamp 28.

Warning lights 21, 22, 28 start

0 blink

At the same time, through the make contact 34 of the program set relay 14 and the make contact 32 of the relay-repeater 8 in series with the first bus

5 to 4, the power supply is connected to the corresponding input of the time relay unit with an audible alarm 31.

In the time relay unit with an audible alarm 31, the corresponding time relay starts to operate with a time setting equal to the working time of the technological sensors involved in the program entered by the operator.

In the case when the program set

5 took place, i.e. the technological sensors participating in the program entered by the operator have tripped and their respective contacts 19, 20 in the signal cells 21 and 22 are closed, in the last ones

0 lamps 19 and 20 begin to burn evenly, because the first bus 4 of power supply 5 was connected to them,

At the output of the sensor unit 13, the supply voltage is then removed, coming in 5 along the first bus 4 of the power supply 5, because the contacts of the process sensors in the sensor unit 13, after operation, opened,

As a result of this, the program set relay 14 is de-energized and all its contacts

will take their initial position, and therefore, the signal lamp 28 begins to light up steadily, because the first bus 4 of the power supply 5 is connected to it through the disconnecting contact 30 of the program kit relay 14.

For the operator, this means that all the process sensors have worked according to the program they entered.

As a result of the fact that the program set relay 14 has been de-energized, the power supply supplied to the first bus 4 of the power supply 5 is removed from the input of the relay unit with an audible alarm 31, thereby stopping the countdown.

In the case when, for the time allotted for the program entered by the operator, not all technological sensors worked according to the program, the corresponding time relay in the time relay unit with an audible alarm will finalize and turn on the audible signal.

In this case, the signal lamp 28 and the signal lamps of those signal cells, the technological sensors of which did not work according to the entered program, continue to flash,

After receiving an audio signal fixing the period of time allotted for the program being entered, the operator can quickly detect faulty process equipment and take appropriate measures.

The advantages of the proposed technical solution are that:

- the device provides the operator with constant reliable control both for one technological sensor and for the whole complex of technological sensors;

- the device allows the operator to track the progress of the program, observing only the state of one signal lamp, instead of the nth number of signal lamps located in the signal cells, which undoubtedly reduces the voltage in the operator's work when entering the program;

- the device allows the operator to quickly identify technological sensors that have not completed the program being entered, by receiving an audio signal that fixes the time allotted for this program;

- the device has a higher functional reliability due to the presence of light and sound alarms in it, characterizing the passage and end of a set of programs and thereby

reduces losses when reading information.

Claims (1)

The claims A device for multipoint signaling, containing signal cells, each of which is made from a contact of a process sensor, the first output of which is connected to the first bus of the power source, and the second through signal lamps is connected to the second bus of the power source, a diode decoder, the outputs of which are connected to the second terminals of the contacts process sensors of corresponding signal cells, a ripple voltage bus and a program setting unit, characterized in that, in order to increase functional reliability device, a time relay unit with an audible alarm is inserted into it, and the program set block is made of switches, relay repeaters, program set relays, diodes, signal lamps and a sensor block, in the program set block, the diodes are connected in parallel with the corresponding repeater relays and relays of the program set, the first bus of the power source is connected to the movable contact of the switch, with the first terminals of the opening and first closing contacts of the relay of the program set, the second bus of the power source is connected to the terminals pi the time relay unit with an audible alarm is connected through the windings of the relay repeaters to the corresponding fixed contacts of the switch, and through the signal lamps to the first terminals of the first make contacts of the corresponding relay repeaters, the second conclusions of which are connected to the second output of the NC contact of the program dial relay and through the second make contact of the program set relay is connected to the pulsating voltage bus, the second output of the first make contact of the program set relay through the second make The repeater relay contacts are connected to the corresponding inputs of the time relay unit with an audible alarm, the pulsating voltage bus is connected to the corresponding inputs of the diode decoder via the third relay contacts, the first power supply bus is connected to the corresponding inputs of the relay block through the fourth relay contacts sensors, the output of which through the winding of the program dial relay is connected to the second power supply bus. (3 1