SU1150762A1 - Scaling device - Google Patents

Abstract

A RECORDING DEVICE containing bit relays, the first winding pins of which are connected to a common chic, the first and second counting buses, the power bus and the input relay whose switching contact is connected to the power bus, and the first contact bus to which The second steps of the windings of even-numbered relays are connected through the closure contacts of the discharge relays of the previous discharge, characterized in that, in order to simplify and increase the reliability of the operation, a delay element is added to the release and add busbar, to which, through its closing contacts, are connected the second outputs of the windings of the discharge relays, except for the last, the release delay element is connected in parallel with the winding of the last discharge relay, the additional bus is connected to the power bus via the disconnecting contact of the last discharge relay connected to the second terminal of the winding of the first bit relay and to the second counting bus to which the second terminals of the windings of the odd bit relay are connected, through the closing contacts of uschih even discharge relay.

Description

The invention relates to a pulse technique and can be used in various devices of discrete automation. A relay pulse counter is known, which contains a bit relay, a set-up unit and an input pulse frequency divider by two p. The disadvantage is low reliability. The closest in technical essence is a recalculating device containing discharge relays, the first terminals of the windings of which are connected to the common bus, the first and second counting buses, the power bus and the input relay, the switching contact of which is connected to the power bus, its break contact to the first counting bus, to which the second windings of the even relays are connected through the closing contacts of the separate relays of the previous discharge 2 "The disadvantages of the known device are the complexity of the device, since each bit contains lement delay release relay (diode shunt winding), and operation of low accuracy, since without special selection timing relays, as well as changing their parameters during long-term operation may cause a malfunction of the device. The purpose of the invention is to simplify the device and increase the reliability of operation due to the elimination of the elements of the operation delay and the elimination of the influence of temporal characteristics ratios on the operation of the device by organizing the connection of the trigger circuits of the discharge relays without the participation of the external relay contacts. This goal is achieved by the fact that in a scaler containing bit relays, the first winding leads of which are connected to the common bus, the first and second counting buses, the power bus and the input relay, the switching contact of which is connected to the power bus, and the contact - to the first counting bus, to which the second leads of the windings of the even discharge relays are connected, via the closing contacts of the discharge relays of the previous discharge, a release delay element and an additional bus are introduced, to which through its closing contacts The second outputs of the windings of the discharge relays, except for the last, are switched on; and to the second counting bus, to which the second pins of the windings of odd-bit relays are connected. through the closing contacts of the previous even-numbered relays. Fig. 1 is a schematic diagram of the device; Fig. 2 shows time diagrams of the operation of the device, where the indices for the voltage symbols U coincide with the number of the element in the circuit. The device contains a discharge relay 1 with closing contacts 1.1 and 1.2, a discharge relay 2, 3, 4 with closing contacts 2.1, and 2.2., 3.1 and 3.2, (, 1 and 4.2 discharge relay 5 with closing contacts 5,1 and 5,2, discharge relay 6 with opening contact 6,1, input relay 7 with switching contact 7.1, closing contact 7.2 and closing contact 7.3 , delay element 8, power bus 9, common bus 10, additional bus 11, first counting bus 12, second counting bus 13, input bus 14, output buses 15-20, In accordance with FIG. 1, a conversion unit containing bitJust 1-6, the first winding pins of which are connected to the common bus 10, the first and second counting buses 12 and 13, the power supply bus 9 and the input relay 7, the switching contact 7.1 of which is connected to the power bus 9, and the disconnecting contact 7.2 - to the first counting bus 12, to which the second terminals of the windings of the even-bit discharge relays 2, 4 and 6 are connected, via make contacts 1,2, 3,2, 5,2 of the leading discharge relays 1, 3 and 5, delay element 8 is introduced on release and additional tire 11, to which through its closing contacts 1.1-5. the second terminals of the windings of the discharge relays 1-5 are connected, except for the last bit relay 6, the release delay element 8 is connected in parallel with the windings of the last bit relay 6, the additional bus 11 is connected to the power bus 9 via the disconnecting pin 6.1 of the last bit relay 6 , the closing contact 7.3 of the input relay 7 is connected to the second terminal of the winding of the first discharge relay 1 and to the second counting bus 13, to which the second terminals of the windings of the odd-digit discharge relays 3, 5 are connected through the closing contacts 2.2, 4.2 of the preceding even bits x relay 2.4. The scaler operates in the following way. When power is applied to buses 9 and 10, all the bit relays remain in a de-energized state. The scaling device is reset until the control signal arrives at the input bus 14. When the first input signal arrives (t figure 2), input relay 7 is activated and contact 7.1 closes the power bus 9 to the second counting bus 13, discharge relay 1 is activated along the circuit: bus 9 - closed contact 7.1 - common bus 10. At output 15, a voltage appears (U of Fig. 2), its contact 1.1 of relay 1 is connected to the auxiliary bus 11, fixing the moment of arrival of the input signal, and contact 1.2 prepares the power supply circuit of the bit relay 2. In the instant of termination of the input signal (tj of Fig. 2) of the relay 7 is both turned off; Pin 7.1 returns to the initial state and connects the first counting bus 12 to the power bus N 9. The second bit relay 2 is triggered through the previously closed contact T.2, a voltage appears on the output bus 16 (U ,, Fig. 2 ), Its contact 2.1 relays 2 is connected to the additional bus 11, fixing the time of the first input signal, and the second contact 2.2 preparing the power supply circuit of the discharge relay 3. When the second input signal (t,) arrives, the input relay 7 and with its switching contact 762 volume 7.1 reconnects the power bus Ani 9 to the second counting bus 13; the discharge relay 3 trips, through the previously closed contact 2.2 and connects relay 3 to the additional bus 11 with contact 3.1, registering the arrival of the second control signal, and closing contact 3.1 prepares the power supply circuit of the discharge relay 4. Subsequently, after the end of the second input signal the alarm triggered by the relay 4, and at the beginning of the third input signal, the relay 5 is triggered. At the time of termination of the third input signal, the triggered relay 6 is triggered and by its disconnecting contact 6.1 turns off the additional The bus 11 from the power bus 9 with the delay that the delay element 8 provides for releasing (for example, a capacitor) is necessary to turn off all the discharge relays 1-6. They are de-energized. The circuit returns to its original state. The technical and economic effect lies in the fact that this technical solution is simpler and provides an increase in the reliability of operation. The introduction of an additional bus 11 allows the second outputs of each bit relay to be connected to the power bus via its own contacts, eliminating the need to set 1-5 delay elements (for example, diodes) for each relay to release, which reduces the likelihood of failures in the scaler in the event of the failure of any delay element, the reliability of the operation of the device is therefore increased. At the same time, the task of fixing the memory of the beginning and end of the event occurred was solved, since with the appearance of the first input signal on the output bus 15 there appears a tension (and), which is present during the whole cycle of the device operation. At the end of the first input signal, a voltage appears, U on the input bus 16, which is present until the end of the cycle. The device, i.e. the fixation (memorization) of the end of the event is provided.

Thus, it is possible to memorize a past event and read information from the output buses 15-20.

The introduction of the delay element 8 to the release on release, installed parallel to the winding of the last bit relay 6, allowed the additional bus 11 to be connected via the disconnecting contact 6.1 of this relay, thereby simplifying the resetting circuit, reducing the likelihood of failures and thus , increase the reliability of functioning.

The use of an additional bus 11, connected via the disconnecting contact 6.1 of the last bit relay 6, made it possible to organize the circuit structure in a new way. Thus, the closing contact 7.3 of the input relay 7 is connected simultaneously to the second output of the winding of the first discharge relay 1 and to the second counting bus; this made it possible to refuse to use a special relay circuit for resetting it. Such inclusion reduces the likelihood of failures in the event of failure of any element of this circuit, simplifies the circuit and increases the reliability of operation.

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Claims (1)

A CALCULATION DEVICE containing discharge relays, the first outputs of the windings of which are connected to a common bus, the first and second counting buses, the power bus and an input relay, the switching contact of which is connected to the power bus, and the breakout contact - to the first counting bus, to which the second leads are connected windings of even discharge relays through the closing contacts of the discharge relays of the previous discharge, characterized in that, in order to simplify and increase the reliability of operation, an element of delay for releasing and additional the second bus to which the second terminals of the discharge relay windings are connected through their make contacts, except for the last, the release delay element is connected in parallel with the winding of the last discharge relay, the additional bus is connected to the power bus through the NC contact of the last discharge relay, the NO contact of the input relay is connected to the second the output of the winding of the first discharge relay and to the second counting bus, to which the second outputs of the windings of the odd discharge relays are connected, through the closing contacts of the previous even discharge data relays. SU „1150762