SU1206950A2 - Four-step reversible pulse distributor - Google Patents

Abstract

The invention relates to electric drives and can be used in automatic devices for providing linear and angular movements in the control of high-voltage apparatuses. It provides information on the status of the four-stroke pulse distributor and thereby increases its reliability. For this purpose, the distributor is provided with an information bus, information elements ZI-NOT and one element 4I-NOT, the output of which is connected to the information bus, and inputs - with the outputs of all elements ZI-NOT. The presence of a signal on the information bus eliminates the supply of erroneous commands in the control mode. 2 Il. Additional to auth. No. 864480. g (/)

Description

one

The invention relates to electrical engineering, in particular to electric drives, and can be used in automatic devices for providing linear and angular displacements when controlling high-voltage devices.

The aim of the invention is to increase reliability by obtaining information about the - STATE of the distributor.

Fig. 1 shows a functional diagram of one embodiment of the device j in Fig. 2, time diagrams illustrating its operation.

The device contains input 1, the control pulse class and the input 2 for reverse pulses.

The input of the device (figure 1) is connected to the counting input of the distribution trigger 3, the direct output of which is connected to the input of the element 4 and the inverse to the input of the element 3 and the inhibiting inputs of the elements 4 and 5 are connected and connected to the input 2 of the device. The output of the element And 4 is connected to the counting input of the actuating trigger 6, and the output of the element 5 -. with the counting input of the executive trigger 7, Elements And 4. and 5 form a reversing unit 8. To the inputs of the trigger 6 through the power amplifiers 9 are connected the odd windings of the stepping motor 10, and the even windings of the motor 10 are connected to the outputs of the trigger 7 via the power amplifiers 9.

In addition, the direct output of the trigger 6 is connected to the first inputs of the ZI-NO elements 11 and 12, while the inverse one is connected to the first inputs of the elements 3 AND-NOT 13 and 14, the direct output of the trigger 7 is connected to the second inputs of the elements 11 and 13, and the inverse - with the second inputs of elements 12 and 14, the direct (inverse) output of the distribution trigger 13 is connected to the third inputs of elements 11 and 14, and the inverse (direct) - with the third inputs of elements 12 and 13. The outputs of elements 11-14 are connected with the inputs of the element 4I-NOT 15, the output of which is connected to the information bus 16.

The device works as follows.

06950

Control inputs to the device i are fed to the counting input of the distribution trigger 3, for example, in the form of series

5 pulses 1 -8, 9 -16 (figure 2).

The reverse signals are received at input 2. The interaction of the triggers by the control and reverse signals is displayed by the state diagrams of the arms of the trigger triggers (direct and inverse, respectively) in FIG. 2 a, b for the distribution trigger 3, s, d for the executive trigger 6 and e, f - for executive trig

15 Hera 7. The following four positions insure the result of control of the four combinations of the arms of the trigger, 1, ;,; distributor with the help of the I-P-14, On the output of these elements, O ever One of the elements controlled by one element corresponds to 1. Up to the moment t, - the termination of a series of control pulses l - 8 - none

25 on one of the controlled 1f1x combinations of trigger states does not contain three., Stop (no sy;; control signal) does not change this state until the moment t-j, - feed

30 of the reverse pulse. The reverse signal switches the trigger 7, and the combination 1, b, d, e fills I, which is fixed by the appearance O at the output of element 13, the supply of a series of control pulses 9-1b (from 1 s) is followed by an alternating 11 By the appearance of O at the outputs of elements 11-14, the outputs of elements 11-14 are assembled at the inputs of element 5, therefore before the moment t on the output of element 15 there is a zero signal, a - after the moment t, - a single signal. Thus, O on the information bus 16 of the device indicates movement (up to t) 1-shea of readiness for movement (t.) In one direction, and 1 indicates readiness for movement (t, ... t) of traffic (after 1h ) to the other side,

50 It is possible to swap the links of the inverse and direct arms of any of the triggers with elements 3 AND-NOT, i.e. as if to consider as the third one any trig - 5 ger of the distributor, as a result, other versions of the device are formed, in which combinations of another group are controlled.

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The presence of a signal on the information bus increases the reliability of the device due to the exclusion of the supply of erroneous commands in the control mode and makes it possible to apply it in automatic systems, which greatly expands the scope of its application. In addition, the signal on the information bus allows monitoring the operation of the device.

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Claims (1)

Formula images Four-stroke reversing impulse distributor by bus. No. 864480, characterized in that, in order to increase reliability by obtaining information on the status of the distributor, it is equipped with a data bus, four 069504 3 I-NOT and one 4I-NOT element, whose output is connected to the information bus, and the inputs to the outputs of all ZI-NO elements, the direct output of the first executive trigger is connected to the first inputs of the first and second elements of ZI-NOT, inverse - with the first inputs of the third and fourth elements ZI-NOT, direct output of the second executive trigger is connected with the second inputs of the first and third elements ZI-NOT, and inverse with the second inputs of the second and fourth elements ZI-NOT, one 15 of the outputs of the distribution trigger connected to the third inputs of the first and fourth elements of the ZI - NOT, and the other - with the third inputs of the second and third elements of the ZI-NO .. ten Signal signal I 1 To the working body Control signals 1 2 d Ч 5 б 7 § 3 Yu P 12 / J J -f 15 16