SU1058062A1 - Relay logic element - Google Patents

Abstract

A RELAY LOGICAL MODULE containing two electromagnetic relays, one winding terminals of which are connected respectively to the first and second input terminals, and the second terminals to a common bus, the output terminal is connected through the first closing contact of the second relay to the first input terminal, characterized in that in order to simplify and extend the functionality, the output terminal is connected via the second relay closing contact and the first relay closing contact to the third input terminal, and through the disconnecting contact of the first relay - to the fourth input terminal.

Description

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O) Is9 The invention relates to a pulse technique and is intended for use in relay logic devices of automatic control, which have increased reliability. A device is known that contains a three-winding relay, the output of each winding of which is connected to the common busbar, and the inputs to the corresponding input terminals of the module, the inputs of the second and third windings are connected to the first terminals of the corresponding closing contacts, the second terminals of which are connected to the output terminal of the module C1J. The disadvantage of this device is the complexity caused by the presence of three windings located on the same core. The closest to the present invention is a device containing three relays, the windings of which are connected between the corresponding input terminal of the cell and the power supply bus, the load is connected to the first input terminals of the cell through the contacts of the second relay to the second input of the cell through con tacts of the third relay and the third input of the element through the contacts of the first relay 2. A disadvantage of the known device is its complexity, due to the presence of three electromagnetic relays. In addition, it cannot implement logical functions that include inversion. The purpose of the invention is to simplify the module and expand its functionality. ; The goal is achieved by the fact that in a relay logic module containing two electromagnetic relays, some of the winding pins of which are connected to the first and second inputs, respectively, and the second outputs to the common bus, the output terminal is connected via the first make contact of the second relay to the first input terminal, the output terminal through the closing contact of the second relay and the closing contact of the first relay is connected to the third input terminal, and through the breaking contact of the first relay to the fourth input terminal. The drawing shows a diagram of the relay logic module. The circuit contains windings 1 and 2 of the first and second electromagnetic relays, first, second, third and fourth, third input terminals 3-6 of the module, common bus 7 module, output terminal 8 of the module, first closing contact 9 of the second relay, second closing pin 10 of the second relay, pin 11 of the first relay. Moreover, the first output of the second closing contact 10 of the second relay is connected to the first output of the opening changeover contact 11 of the first relay. The second terminals of contacts 9-11 are connected together and connected to the output terminal 8 of the module. The first output of the opening contact 11 of the first relay is connected to the fourth input terminal b of the module. In the initial state, both relays are de-energized. The module works as follows. The presence of a positive potential at the input terminals 3-6 of the module is taken as 1, the absence is beyond the O. The majority function is realized when the logical variables are applied to the first input terminal 3, the second input terminal 4, the third input terminal 5 of the module. The logical function OR is realized when one variable is supplied to the first input terminal 3, another variable to the second input terminal 4 and the power source plus is supplied to the third input terminal 5. The logical AND function is realized when one variable is supplied to the input terminal 3, and the other to the input terminal 4. Logic function The prohibition is realized when one variable is fed to the input terminal 3 / and another is input terminal 6. The logic function Implication is realized when one variable is supplied to the input terminal 3, and the other is input terminal 4, plus power source - to the input terminal 6. In addition, the module implements logic functions of three or more variables including inversion. For example, when a logical variable A is applied to the input terminal 3 of a logical variable B - to the input terminal 4 of a logical variable C - to the input terminal: 5, to a logical variable D - to the input terminal 6, the logical function of four variables in A (B + C ) + BC + AD AB + AC + BC + AD. Thus, the proposed logic relay module is simpler and has advanced functionality in various ways.

Claims (1)

RELAY LOGIC MODULE containing two electromagnetic relays, one of the windings of which are connected respectively to the first and second input terminals, and the second conclusions to the common bus, the output terminal is connected through the first NO contact of the second relay to the first input terminal, characterized in that, in order to simplify and expand the functionality, the output terminal is connected to the third input terminal through the make contact of the second relay and the make contact of the first relay, and to the fourth through the make contact of the first relay rtoy input terminal. >