SU48685A1 - Device for centralized control of electrified mechanisms - Google Patents

Description

The wide development and introduction of telemechanics in the control and monitoring at a distance by any technological process requires the creation of rational devices that, first of all, must satisfy the conditions for the elimination of incorrect actions: the attendants.

The present invention relates to such devices and consists in such an electrical circuit for switching on control and signal relays, which gives the device a number of advantages in terms of reliability and flexibility of handling.

FIG. 1 and 2 of the drawing is a schematic diagram of a device in accordance with the invention.

FIG. Figure 1 shows the central control point of the CPU, from which the lines ending in arrows and labeled from M to M.

This is a simplified scheme of routes, each of which includes a number of different electrified mechanisms, and the interdependence between them may be different, i.e.

and npj stop / Vf may require automatic stop L and t, p.

In order to avoid accidents with people and chemists, it is necessary to give a signal to the appropriate places before starting, and also to launch a whole number of powerful mechanisms to perform 1 at certain intervals to avoid over-current, x current surges and loss of protection in in some cases, which is accompanied, as is well known, by the cutting down of degrasors, the loss of generators, etc.

FIG. Figure 2 shows a scheme for switching on mechanisms according to a predetermined time and sequence schedule. The dispatcher presses the eye start button of the ACG, which causes the main start-up relay of the GPR to operate and is blocked through its transitional contacts, receiving P.PUS through the contact of the PC signal relay. Following this, the GPR, which has a slowdown, includes through other contacts a chain of corresponding beeps (one line is indicated for simplicity in the diagram). After a certain period of time, the chain of beeps automatically turns off, and then the control circuits are switched on in series.

at the same time, the plus is fed to the control handles and further along the control circuit to the starting relays of the mechanisms to be put into operation. When deliberately stopping, so on. when the stop button is pressed at the dispatcher or in other places, as well as in the event of an accident, some of the mechanisms, the latter, being normally blocked, stop one by one, and stopping the latter will cause the release of its control relay SR. The contact of the latter in working condition caused the PC signal relay to work, and when released, the bridge contact on the switch left it in the pulled position and turned on the necessary signals from the controller (optical, acoustic or others) to attract attention. At the same time, the GPR released. The dispatcher, pressing the KN button, brings the entire device back to its original position, and the next time you start any route, everything described is repeated. In cases where it is not necessary to withstand a certain and considerable time for signaling before start-up and putting the mechanisms into operation during start-up, the right part of the circuit in FIG. 2

When the buttons of the warning signals are pressed, the latter operate at predetermined locations and the X-ray switch operates. Only after this manipulation is the dispatcher able to start the mechanism by short-time pressing the PC. The start-up relay PR is activated and is blocked through the contact PSD. When JJ turns on the last mechanism, which is confirmed to the dispatcher by IKP triggering, at this time the RPS will be released, and the OL will remain in operation through the second winding. When the automatic stop mechanisms, as already mentioned, the PC remains in operation

signals to alert the dispatcher. Everything comes to its original working position (when the controller is pressed by the controller KN.

The subject matter of the invention.

Claims (3)

1. A device for centralized control of electrified mechanisms with selective start for individual and group work in various combinations of interlocking between them, depending on changes in process requirements, characterized in that the main start-up relay or PR series are used for forcing warning signals intended to give before starting, for a certain period of time, through a series of signal contacts, warning signals and through the specified time intervals automatically put into operation the selected mechanisms through their working contacts, which at some point, according to a predetermined order, are intended to go out of work, send: and the signals through the contacts IKP and PC. 2. The form of the device according to claim 1, characterized in that, in order to be able to issue a warning signal before the launch of selected mechanisms, not automatically, with a desired duration of action, is used a relay RPM in order to start up simultaneously or sequentially through contacts of one or several PR, by pressing the PC start button from its installation location. 3. In the device according to p. I, the application for receiving back; a ro signal or a receipt of a POC device, which comes into effect after the activation of the warning signals through the contacts of the FLAR. Copyright N. N. Kryukov 4868i FIG. --gb-rf Pf s g r iJKP V-1  i GH  I S2Y ... I / 7 / C I .M I1 ./Kf}