RU1833838C - Device for programmed control - Google Patents

Abstract

The invention relates to automation devices and can be used in control systems, for example, in electric drive control systems for simulating stands, robots, etc. The device comprises a unit for processing and issuing control commands connected via a switch and a data bus to the input of the control object, two power units, two protection units, five relays, an AND element, a delay element, and a parameter sensor unit. The introduction of new elements and connections allows us to solve the problem of automating the inclusion and monitoring of the supply voltage of the control object, which allows us to reduce the likelihood of equipment failure, as well as to increase its reliability. 4 ill.

Description

The invention relates to automation and may find application in control systems, for example, in control systems for electric drives of modeling stands, robotic manipulators, etc.

The aim of the invention is to eliminate emergency situations due to unauthorized switching off and on of power supply sources of power and non-power voltage by automating the switching on and control of supply voltage.

In FIG. 1 is a block diagram of a software control device; FIG. 2 is a diagram of a display unit; in FIG. 3, 4 are power on and off algorithms.

The device contains a processing unit and issuing control commands 1 of the computer, which can be used as a micro-computer Electronics-60, a switch 2, used to coordinate the computer 1 with external devices and made in the form of a parallel exchange device I2 (15KS-180-032 ), data bus 3, control object 4, data bus bits 5.6, parameter sensor block 7, display unit 8, power 9 and non-power 10 power supply, first 11 and second 12 protection units, relay 13-17, delay element 18 and element And 19 data bus 20.

Indication block 8 (Fig. 2) consists of three independent chains of series-connected LEDs and constant resistors and serves to indicate the presence of power on the first power supply unit (signal from the protection device 11), on the second power supply unit (signal from the device 00

OJ W 00

with

00

VA protection) and the presence of a common control signal from the element And 19.

As protection devices 11,12, devices made on the basis of the invention can be used (as USSR AS No. 1492410 of 12.22.86 H02H 3/24),

As the relay 13, 14 can be applied relay type RGK-13. As relays 24, 46, 47, relays of the RES-10 type can be used.

As the control object 4, a modeling stand with control equipment can be used.

Relays of the RES-10 type and microswitches of the MPZ-1 type can be used as parameter sensors.

As a first (non-power) power supply, for example, a standard stabilized power supply, for example, type P4104 / 1, can be used. As a second (power) power supply, for example, a calibrated signal source, for example, type MP 8005, can be used.

The device operates as follows:

When a command is issued from block 1, turn on the power (Fig. 3) through switch 2, the control signal from the first bit -. line 5 of the hexadecimal data bus 3 is fed to the coil of the relay 13. As a result, the make contacts of the relay 13 are closed and the primary supply voltage Uinm is supplied to the first power supply 9, in which part of the required supply voltage of the control object 4 is generated. From the first power supply unit 9, the supply voltage is supplied to the first protection unit 11, for which the executive body is: relay 15, delay element 18, element And 19, the display unit and the first bit is a 16-bit data bus line through switch 2 unit 1 . In the presence of all the supply voltages generated by the first power supply unit 9 from the first protection unit 11, the signal is supplied to:

a) the winding of the relay 15, as a result of which the make contacts are closed on the power supply line and the supply voltage from the first power supply unit 22 is supplied to the control object 4;

b) a delay element 18 from which, after a period of time T., the signal necessary for the end of the transient in the first power supply unit 9 enters through the opening contact of the relay 14 to the relay coil 16;

c) a block through switch 2 in the first bit of the hexadecimal data bus line;

d) the first input of the I19 element;

d) the first input of the display unit 9.

At the request of unit 1, the First power unit is turned on (Fig. 3) in case of a positive response to the screen of the display unit (computer), the message The first power unit is turned on. In the case of a negative answer 1, the message The first power supply is not turned on and the program returns to the beginning, eliminating possible malfunctions and repeating the Turn on power command.

When the signal arrives at the relay 16, its make contacts close and the second primary supply voltage is supplied to the second power supply unit 18, from which the generated supply voltage is supplied to the second protection unit 12, dl. of which the relay 17, element And 19, display unit 8 serves as the executive body and, in the second order, the hexadecimal data bus lines through switch 2 of unit 1.

Relay 17, in the event of the presence of voltages on the protection unit 12, the short-circuit contacts on the power line from the second power unit 10 to the control object 4 are activated. In this way, the supply voltages from the second power supply unit 10 reach the control object 4.

At the request of unit 1, the Second power unit is turned on, after a certain delay, A t A T, in the case of a positive response, the message The second power unit is turned on appears on the screen of the unit 1 (computer).

If there are supply voltages on the first protection unit 11, the signal is transmitted to: the first input of the indication unit 8, in which the first LED lights up; the first input of the element And 19, block 1 through the switch 2.

If there are supply voltages on the second protection unit 12, the signal is transmitted to: the second input of the indicating unit 8, in which the second LED lights up; the second input of the element And 19, block 1 through the switch 2.

If there are signals at both inputs of element And 19 that correspond to logic level 1, the output of this element will receive a signal arriving at indication unit 8, in which the third LED lights up; indicating the inclusion of both power supplies, and to unit 1 through switch 2.

At the request of unit 1 Power On if there is a signal on. the output of the And 19 element transmitted to block 1 through the switch 2, the message Power is turned on is displayed on the screen of the display block 1.

If there is no power-on signal, the message Power off is displayed on the display screen.

From the block 1 through the switch 2 along the free lines of the data bus 3 to the control object 4 can also receive other relay commands. From the control object 4, through the sensors 7 of the parameters, the signals are fed through the free lines of the data bus 20 to block 1 through the switch 2.

When a command is issued from block 1, turn off the power (Fig. 4), first the power to the second power block 10 is turned off by the signal arriving at the relay. 14 on line 6 of data bus 3.

The NC contacts of the relay 14 are opened, as a result of which the NC contacts of the relay 16 are opened, the second primary power circuit and the second power supply unit 10 are disconnected.

On a block 1 request, the second power supply is turned off via the data bus line 20. A positive response is received and the second power supply off message is displayed on the display screen of unit 1

After that, the command Turn off the first power supply is issued from block 1. Shutdown occurs on line 5 of data bus 3. In case of shutdown, on the display screen of unit 1, the messages of the Keys are sent to the first power unit and the Power is turned off. If the second PSU does not turn off, a message is displayed. The second power supply is not turned off and it returns to the beginning of the program.

If the first power supply does not turn off, the message Power to the first PSU is not turned off is displayed on the display screen of unit 1 and it returns to the beginning of the program.

Thus, using the introduction of new connections and elements in comparison with the prototype, the present invention automatically turns on and monitors the supply voltage, which eliminates emergency situations due to unauthorized switching on and off the power sources of non-power and non-power voltage.

Claims (1)

The claims A device for program control, comprising a processing unit and issuing control commands, a group of information outputs and a control output of which are connected respectively to the first group of information inputs and a control input of the switch, a group of outputs the data is connected to the group of information inputs of the data of the control object, as well as the display unit, power and non-power supply units of the control object and the block of parameter sensors, the group of inputs of which is connected to the group of outputs of the control object, and the group of information outputs - to the second group of information inputs of the switch, group information outputs which is connected to a group of information inputs of the processing unit and issuing control commands, which means that, in order to exclude emergency situations due to authorized switching on and off the power sources of the control object’s power and non-power voltage, two protection units, five relays, an I element, a delay element are introduced into it, the first bit of the first group of information outputs of the switch connected to the first terminal of the winding of the first relay, the second terminal which is connected to the common bus, the primary power circuit is connected to the group of inputs of the non-power supply unit through the make contacts of the first relay, the group of outputs of the non-power supply unit is connected to the group of inputs of the first protection block, and through the closing contacts of the second relay to the first group of power inputs of the control object, the first bit of the second group of information inputs of the switch is connected to the first input of the And element, with the first input of the display unit, with the first output of the second relay winding and through the included delay element and the NC contact of the third relay with the first terminal of the winding of the fourth relay, the second terminal of the second, third and fourth relay is connected to the common bus through the closing contacts of the fourth relay of the second The primary power circuit is connected to the group of inputs of the power supply unit, the group of outputs of which is connected to the group of inputs of the second protection unit and through the make contacts of the fifth relay to the second group of power inputs of the control object, the output of the second protection unit is connected to the second bit of the second group of information inputs data of the control object, with the second input of the AND element, with the first output of the winding of the fifth relay and with the second input of the indicator, the second output of the winding of the fifth relay is connected to the common bus, the first and second outputs of the block address processing and issuing control commands are connected to the corresponding control inputs of the control object, 1833838 //  L With tfcry & S7 & L C0oЈi S fwtsf / ЈaЈ & ts efsOj: s - fr o / stsp / se Јw & left. ЈЈ Ј: ЈcjfiP / "s Ј. m-fSTycf fff & cZijLffSStSe / 7tsrr70f St-S & Ј L && t5t LfЈ tsf / 7s // 77C # & / r Wt S e0 C // crycrs & - n-1 Ј && Ј5 / е & & / ЈЈ7 OSOS 5 iZTjf & X t / S / f / XS K YЈ rttssntysft / I Ј a && ЈЈf A ЈS & Wn s tsj7 & } ЈЈ e7 & t-Јjf st r Јb / fsrK vf & s7 e o t & fff .e si tssn tz s-r-bs: T Ј G & {$ t4fl S- S / 7. b. WITH )