SU1515147A1 - Cyclic-action program control device - Google Patents

Abstract

This invention relates to automatic control and is intended for program and time control of technological processes. The purpose of the invention is to expand the scope by providing a variable interval between setpoints. The cyclic software program contains the first software time relay 1, the minimum time delay contact 2, the make contact 3 of the first program time relay, the first intermediate relay 4, the make contact 5 of the first intermediate relay, the second program time relay 6, the release 7 of the second program relay time, the second intermediate relay 8, contacts 9 of the second intermediate relay. 1 il.

Description

3151

This invention relates to automatic control and is intended for program and time control of technological processes.

The aim of the invention is to expand the scope by providing a variable interval between setpoints.

The drawing shows the electrical circuit of the software device of cyclic action.

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The software cyclic device contains the first software time relay 1, the minimum time delay contact 2 and the closing contact 3 of the first programmed time relay, the first intermediate relay 4, the closing contact 20 5 of the first intermediate relay, the second software time relay 6, the closing contact 7 of the second software time relay, second intermediate relay 8, contacts 9 of the second intermediate-25 th relay.

The device works as follows.

When voltage is applied to the circuit, the first program relay of mode 30 and 1 and the first intermediate relay are closed. The disconnecting end of the first program relay is disconnected (.g i, which is set to the minimum hold time, and the power supply of relay 1 and 4 is emitted through a short Pin 5. When a certain time specified by the program is reached, the closing contact 3 is maximized, the second 40 programmable time relay 6, set for the minimum fixed time (for example, 2 s), and the second intermediate time switch e 8, pins 9 which comprise actuator. After 2 x with contact 7 is opened razmykakhtsy second relay software vre

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five

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0 0 s 74

6, the first intermediate relay 4 is turned off, the opening of its closing contact 5 is disconnected, the first time relay 1 is disconnected, the closing contact 3 is closed and the closing contact 2 is closed, relays 6 and 8 turn off, the circuit returns to its initial state. device repeats

Claims (1)

Invention Formula The software cyclic device, containing the first software time relay and the first intermediate relay, is connected in parallel with the first software time relay in parallel connected times for the contact of the minimum shutter speed of the first software time relay and the closing contact of the first intermediate relay, which differs from the purpose of expanding the scope of application by providing a variable interval between setpoints, introduced a second software time relay and a second intermediate relay, gfich In parallel with the first time programmer, a circuit is connected from the first intermediate relay in series and the KuHi EKTa disconnecting second nanogram relay to interlock, parallel to the first programmable time relay and the soft contact of the minimum time delay for the first programmable time relay to turn on ) X of the second programmable relay time and the closing contact of the maximum time delay of the first programmable time relay, parallel to N o The second time relay is switched on to the timing relay, the contacts of which are the outputs of the devices a.