DD139932A3 - CIRCUIT ARRANGEMENT FOR COUPLING BUTTON RELAY CONTROL CIRCUITS IN TRACK PICTURES - Google Patents

Abstract

Circuit arrangement for coupling push-button relay control circuits in railway track diagram interlocking systems covering multiple operating zones. Remote or centrally controlled operation should be possible, with multiple operating zones being centrally controlled by one operator. The push-button relay control circuits of the individual zones are linked to each other so that they function together. For this purpose, a relay circuit with test and monitoring relays and a repeat lock is constructed. The contacts monitor the home position of the push-buttons and connect ring circuits.

Description

Title of the invention

Circuit arrangement for coupling key relay control circuits in Gleisbildstellwerken

Field of application of the invention

The invention relates to a circuit arrangement for the coupling of key relay control circuits in Gleisbildstellwerken, in particular track layout signal boxes of the railway, which includes a plurality of service districts.

Characteristic of the known technical solutions

In track system interlockings, in particular trackplan interlockings, it is customary to control the basic position of the key relays.

Circuit arrangements are known which centrally control, by means of symmetrical circuits of the key relay contacts, that an action only ever occurs for a group key operation together with individual keys, if only one group key and only one individual key is operated and all other controlled group key relays and single key relays are in the basic position (Ref .: Fischer, E.

The central control and the decentralized close-up operation in the WSSB gauge subset of type GS II Sp 64 Signal and Rail 14 (1970) 9, p. 360 - 363) ·

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For this purpose, a relay constantly monitoring the basic position of all key relays and a relay attracting only one key when operating is used for each control chain for the group and single key relays. · A repeat lock ensures that only one use can be made of each operation.

A loop can only be energized if

- the monitoring relay dropped off and

- the energizing relay is put on and '- repetition interlock effective

is switched.

This control circuit is required separately for each control area, since each operator has own group buttons.

At times, for example, for remote-controlled interlocking or local control areas, it may be necessary certain operating districts another operator, for. B. directly assigned to a central dispatcher. For this purpose, the known circuit arrangements are not suitable.

Object of the invention

The invention is intended to enable a remote or central controlled operation ·

Explanation of the essence of the invention

The invention has for its object to form the circuit arrangement for key relay control so that in the central operation of several districts a common group key for all centrally-served districts can be used and that the Tastenrelaiskontrollschaltungen the service districts are coupled together so that they act as a common control circuit ,

According to the invention, this object is achieved in that a control relay is provided in each control district, which constantly controlled by its energized state, the basic position of the single key relay in the other control district via a closer of their monitoring relay and this control relay can after operation of a single key in the other district via a contact only put the repeat lock on again, even if a group key operated for this purpose is in the basic position again; in each district a test relay is provided, which turns on operation of a single key in its own district via a contact of the then dropping monitoring relay and checks in the other district via an opener of the falling control relay whose waste; in the input to be effectively switched by a group key operation, a normally open contact of the control relay is in series with a normally open contact of the test relay. The basic position of the test relay is controlled by its normally closed contact in the reset circuit of the repeat lock.

Embodiment.

Reference to the drawing, the circuit arrangement according to the invention is for example explained. In the drawing, the state is shown, in.dem both operating districts (I, II) are operated by an operator. This operator also all individual keys are assigned, however, act through their key relays on the control circuits of their districts.

The district-wide king lines (R) are activated via the series connection of the NO (31 and 41) only when the control relay (30) 'and the test relay (40) are tightened.

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But this is only the Pail, when a single key relay is energized, which drops in a known manner, the monitoring relay (10) and the current path for "the test relay (40) with" its opener (12) has prepared · In this case the interruption of the shutter (11) from the monitoring relay (10) for the fall of the econtrolling relay (30) in the other district. Its opener (32) now closes the circuit for the test relay (40).

The control relay (30) remains energized as long as in the other district no single key relay is energized, so the monitoring relay (10) is energized. With simultaneous operation of single key relays in both districts the contact relays (30) of the other district 'thrown by the monitoring relay (10) with their contacts (11)' and block with their NO (31) the ring lines (R).

The Wieder¬ rungssperrkontakt (21) ensures that only after switching back the repetition lock (20), d. H. In the basic position of both the single and group key relays, the control relay (30) in the other district can be tightened again. In the reset circuit of the repeat lock (20), the open position (42) controls the basic position of the test relay (40).

Claims (2)

invention claim Circuitry Coupling of key relay control stations in track switches provided for each control area and ensuring that the operation of only one group key and one single key simultaneously effects a group test on a loop and a retry interlock exists which causes an operation can be made only once, and that the operation of several districts is carried out temporarily by an operator with a group key common to all districts, characterized in that in each district (I; II) a control relay (30) is arranged, the a line to the other district concludes that each in the other district in this circuit a closer (11) of the excited in the basic position monitoring relay (10) and a closed position in the basic contact (21) of the repetition lock (20) that in each district (I II) a test relay (4-0) provided i st, which terminates via a normally open contact (12) of the monitoring relay (10) from the same district (I or II) a line to the other district (I or II) and that in this line in the other district (I or II) a contact (32) of the control relay (30) which is open in the basic position, and in that a ring contact (31) of the control relay (30) can be connected in series with a normally open contact (41) in the ring line (R) which is to be effectively switched by a group key operation. the test relay (40) is located. 2. Circuit arrangement according to item 1, characterized in that a closed in the basic position contact (42) of the test relay (40) in Rucks part tronskreis the repetition lock (20). Hieizu // page drawing . / UiIkIiHS: -80!