DE1065001B - Circuit arrangement for a pulse-controlled counting chain with counting magnets - Google Patents

Description

LIBRARY

OF THE GERMAN PATENT OFFICE

In telecommunications systems, counting or relay chains are used for a wide variety of purposes Impulses can be passed on. The well-known relay chains, in which a special relay in each stage is available and the switching from stage to stage takes place via auxiliary relays, are very complex. This high effort is very annoying when there is a very large number of outputs is needed, d. H. a corresponding number of stages of the relay chain is required.

Counting magnets are known which have a plurality of part anchors. Usually contains a Counting magnet ten such partial armatures, which are gradually successive as a result of the supplied incremental pulses be operated. A relay chain of ten relays can in some cases be replaced by one Counting magnets are replaced. But if more than ten outputs are required, a single one is sufficient Counting magnet no longer off. There were therefore several counting magnets to identify a large number of The outputs are interconnected as a counting chain in such a way that the last part of the armature is used as a changeover contact formed pulse contact excited the counting magnet when actuated to provide an actuating circuit for the subsequent counting magnet. which is closed by the pulse contact in the following pulse pause.

In this known arrangement, the armature parts of the first counting magnet are affected by the pulses advanced at the start of the pulse. When the last pulse is fed to the first counting magnet, then in the immediately following pause the first armature of the second counting magnet over the Idle position of the pulse contact activated. The other armature parts of the second counting magnet in the following pulse pauses. A corresponding shift in the operating times occurs with each subsequent counting magnet in the chain. However, this results in the identification of the Counting magnet outputs no longer always at the same time intervals. In many cases it is but it is just necessary that the individual outputs of the chain are switched on in an unchanged rhythm will.

Another known arrangement includes a relay chain which is advanced by pulses. When the last relay in the chain has been energized by a pulse, the subsequent pulse pause energizes an auxiliary relay that prepares a circuit for a reset relay. This reset relay comes into effect with the next impulse, switches off all relays in the chain and thus sets the Relay chain back to its original state. When the next impulse arrives, then again Circuit arrangement

for a pulse-controlled counting chain

with counting magnets

Applicant:
Standard electrical system Lorenz

Corporation,

Stuttgart-Zuffenhausen,

Hellmuth-Hirth-Str. 42

Rudolf Luce, Gelsenkirchen,
has been named as the inventor

the first relay in the chain is switched on. With this type of reset, which requires two relays, but the disadvantage already mentioned occurs again that an impulse is lost and not for the identification of the individual outputs is available.

The disadvantages of the known counting chains with counting magnets are avoided according to the invention by that by the working contacts actuated by the armature part one after the other in a manner known per se corresponding outputs are marked that continue directly to the through the last part anchor Each counting magnet actuatable normally open contact has a special switching relay switched on, which is in the Pulse pause after the end of the last pulse that can be picked up by a counting magnet, the pulse input line switches to a downstream pull-in winding, and that the actuated by this Contact output to be marked only indirectly, d. H. via the normally closed contact of the subordinate Counting magnet is connected. With this arrangement, the individual outputs are through the pulse train marked in a perfectly even rhythm. An impulse is neither lost nor becomes one special output of the counting magnet is required. Only one changeover relay per counting magnet is required compared to two relays in the known relay chains.

The mode of operation of the invention will be explained with reference to the drawing.

Fig. 1 shows a counting chain with counting magnets, which is controlled by a changeover contact and at that this contact during the pulse pauses that

909 627/88

Marking potential at the relevant outputs of za 10, zb 10 or ze 10 and the rectifier held. Put on chain; in 'If the next time the pulse con Fig. 2 is a modification of the arrangement after clock i (40th pulse) the terminal W is potential-free, Fig. 1 shows, in which the increment of the counting and the earth potential at the terminal Z errnagneten takes place by a simple pulse contact 5 seems to fall Relays A to C off. Only the relay D and the marking potential for the outputs is continuously fed through its winding II and its own. Contact dl continued. In the same circuit, the counting chain shown in FIG. 1 contains the winding four connected as counter-windings. _; Counting magnets _{Z ^:} Z #. ^: Z £ undZD .. Since each of these lungs II excites the counting magnets ZA to ZD and da counting magnets have ten outputs, the entire io chain has outputs 1 to 10 through these counting magnets back to their rest position. The advancement made. In the following pulse pause of the counting chain is performed by the changeover contact when the relay winding II D-energized, so that it formed Impulskontaktj i, This contact defines relay drops out and its contacts with? I Fortabwechselnd the ground potential to the terminals Z or W. Switching circuit for the first counting magnet ZA Instead of the changeover contact, a 15 can also be prepared again. During this time, electronic equipment is already in place. B. again via the closed contact zaO the Mareine bistable trigger circuit, which also alternates kierpotential at the output 0/40. This output is applied to the two terminals Z and W potential. In the initial position 0 or after the 40th pulse it is assumed that the pulse ratio, that is, that is characterized.

Ratio of the times at which at terminal Z 20 By adding additional counting magnets without

or -J ^ -Earth potential is applied, is 50:50. further increases the number of outputs at will

The pulse ratio can, however, be increased without difficulty. It is also possible to stop the counting chain at any time

can also be chosen differently to stop by a special switching measure and

The progression of the counting chain is due to the following return to its rest position,
In the initial position, the contact 25 is closed. In the arrangement shown in FIG. 2, the first counting magnet ZA is closed. As a result, the contact is also in rest again, as a result of which earth is closed as a marking potential at the output. This means that the output is 0/30 with marking 0/40. If the impulse contact i is provided in the other position potential. The marking potential is transferred in this position and occurs, so earth potential is selected differently in the example and is generated via a resistor Z, then the contacts of the counting magnets are permanently assigned via the contacts dl, el, hl 30 and al the winding I. of the counting magnet ZA excited. guided.

As a result, the first armature is actuated and the progression of the three counting magnets ZA, ZB contact zal is closed, while the contact zaO and ZC happens in a similar way as it is opened above at. If the pulse contact t reverses, it was described in the following FIG. When the counting magnet returns the ... pulse pause to its rest position, its last armature is actuated 35 ZA and its contact za 10 closes on this via the now closed contact zal the step, so an output 1 marking potential is supplied. With either side the marking potential immediately via the idle-J following pulse, the counting magnet is switched to a position located contact, e.g. 0 of the following step. The individual armature parts are given to the output 10 by counting magnets ZB. Other earths operated one after the other and in each case the 40 hand is closed via the contacts # α 10 and zbO voltage partial armature associated contact, while the previous contact is opened on the two differentially connected windings I. So there are and II of relay A placed. This relay cannot yet address the steps zaO, zal, za2 etc. one after the other. The opposite winding A (II) outputs is marked only when the impulse closes and via it during the impulse pauses the contact i opens again. 45 de-energized and relay A picks up. With its Kon-reached the counting magnet ZA when switching clock a 1 it separates the counting magnet ZA from the impulse its last step, ie if it closes its contact circuit and instead switches the counting, sralO, then in the following pause by the on magnet Eg on. Since the contact za 10 remains connected to the earth potential applied to the terminal W on the one hand, the relay A is energized via it on the rectifier relay A and on the other hand 50 is held. In the same way, the earth potential is transferred via the contact zbO of the next counting magnet, which is closed in its rest position from the counting magnet ZB to the counting magnet ZC , through the relay B. Here, too, ZB can be applied to output 10 by adding ZB. The relay A holds further counting magnets the number of outputs besieh with its contact all itself further and prepares to be increased. The outputs themselves are each with its contact al the incremental circuit for 55 because as long as the next counting magnet ZB recognized by the marking potential. The counting magnet records how the relevant contact is disconnected by the ZA , but keeps its contact, the sub-armature, closed. Since the zalO is still closed. In the same manner advancing advertising the partial tie until the previous one to be respectively opened in the last step of the respective contact, and then the new contact ge-Zählmagneten the relays B and C energized and characterized 60 closed, it is ensured that the Markierdiefolgenden Zählmagneten ZC or ZD in the continuation potential always only switched on at a single output. can kick.

If the counting magnet ZD at the 39th pulse, the

Step sd 9 closes, the counting magnet is switched on in the subsequent contacts.

Pause at the output 39 the earth potential is applied. 65 However, this is not a serious disadvantage

At the same time, the winding I is represented in this step, because in the usual embodiment of the counting

of relay D energized. The contact dll separates the magnet, it is easily possible to open the contacts holding circuit for the relays A to C. But to switch under a certain load. In most

■ These relays remain for the time being due to the earth potential of the application, but the load capacity of the terminal W via the step 70 contacts plays a subordinate role. This applies in particular

especially when transistor stages are connected to the outputs of the counting magnets. aside from that the arrangement offers the advantage that the outputs are marked immediately when the input pulse arrives takes place and that thus phase equality between the input pulse and the beginning of the output marking prevails. The duration of the marking itself is longer than in the exemplary embodiment according to FIGS. 1 and is only briefly for the moment of the switchover process interrupted within the counting magnet contacts. The duration of the marking of each Outputs are therefore independent of the duration of the input pulses.

In the example in FIG. 2, a different type of disconnection than in FIG. 1 is shown. Here, the chain of the counting magnets is reset to its rest position by means of a special switching measure. As soon as windings II of the counting magnets ZA, ZB and ZC , which are connected as counter-windings, are excited via the disconnection contact, these counting magnets are reset to the rest position. The shutdown can also take place in such a way that the shedding windings of the counting magnets are only excited via the rest side of an i-contact during the pulse pauses. It goes without saying that it is also possible to switch off at the last or any other specific step, as has already been described in FIG. 1.

The invention offers the advantage that even when moving from one counting magnet to the next the pulse ratio is not disturbed. The times during which the outputs with marking potential are not reduced or extended under any circumstances. In addition, there is no step of the counting magnets lost when switching to the next counting magnet.

Claims (7)

Patent claims: 1. Circuit arrangement for a pulse-controlled counting chain with several chain links consisting of counting magnets, which in turn have a plurality of partial armatures that can be actuated one after the other, of which when actuated the first can open a special break contact and close its make contact, while the other sub-anchors only close their make contact , after they have reopened the working contact actuated by the respective upstream armature, characterized in that the working contacts actuated by the armature (sal , za2... or zbl, zb2 Outputs (1, 2, 3... Or 11, 12, 13...) Are marked so that there is a special switching relay directly on the normally open contact ( see 10, e.g. \ 0, etc.) that can be actuated by the last armature of each counting magnet (A, B etc.) is switched on, in the pulse pause after the end of the last, in each case by a counter Magnetic pulse that can be picked up switches the pulse input line to a downstream pick-up winding, and that the output (10, 20, etc.) to be marked by this contact (2a 10, e.g. 10, etc.) only indirectly, i.e. via the normally closed contact (e.g., ze 0, etc.) .) of the downstream counting magnet is connected. 2. Circuit arrangement according to claim 1, characterized in that the changeover relay itself continues through your own contact. 3. Circuit arrangement according to claim 1 and 2, characterized in that on the last for Output of the counting chain required for marking purposes through the sub-anchor assigned by this step actuated contact in addition to the marking a relay is energized, which has a shedding circuit prepared for the counting magnets, which 'by the impulse contact at the next incremental impulse is closed, and that when the counting magnet is reset into their rest position through the special rest contact of the first lying within the counting chain Counting magnet marking potential is applied to the output assigned to the rest position. 4. Circuit arrangement according to claim 1 to 3, characterized in that the pulse contact as Switching contact is formed, the one hand in its working position potential to the respectively connected Winding of the counting magnet and, in its rest position, on the other hand, via the one operated by the respective one Part anchor through-connected contact applies marking potential to the relevant output and via the contact of the last partial armature the changeover relay is on during the pulse duration in brings itself to effect in a known manner. 5. Circuit arrangement according to claim 1, characterized in that the marking potential continuously fed to the individual contacts that can be actuated one after the other by the armature part will. 6. Circuit arrangement according to claim 1 and 5, characterized in that the one counting magnet assigned changeover relay switched on on the last step of the counting magnet is equipped with two differentially switched windings, one of which is the pulse contact Disconnects the winding after the continuation pulse and the relay in the pulse pause brings to effect. 7. Circuit arrangement according to claim 1, 5 and 6, characterized in that the one Changeover relays assigned to counting magnets are on the permanently applied potential last step of the counting magnet continues. Considered publications:
German patent specification No. 923 855. 1 sheet of drawings © 909 627/88 9.