JPS6044103U

JPS6044103U - loop control device

Info

Publication number: JPS6044103U
Application number: JP13228683U
Authority: JP
Inventors: 昇田村
Original assignee: 株式会社東芝
Priority date: 1983-08-29
Filing date: 1983-08-29
Publication date: 1985-03-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のループ制御装置の一例を示す系統図、第
２図はその動作を示すタイムチャート、第３図は本考案
の一実施例を示す系統図、第４図はその動作を示すタイ
ムチャートである。１・・・シート材、３，１２・・・速度検出器、６・・
・位装置検出器、９・・・電動機、１０・・・速度制御
装置、１６・・・演算増幅器、２１・・・運転指令、２
２・・・ＲＵＮリレー、３１・・・ゼロ点検出器、３２
・・・ＲＹＩリレー、３３・・・ＲＹ２リレー。Fig. 1 is a system diagram showing an example of a conventional loop control device, Fig. 2 is a time chart showing its operation, Fig. 3 is a system diagram showing an embodiment of the present invention, and Fig. 4 is a system diagram showing its operation. This is a time chart. 1... Sheet material, 3, 12... Speed detector, 6...
- position device detector, 9... electric motor, 10... speed control device, 16... operational amplifier, 21... operation command, 2
2...RUN relay, 31...Zero point detector, 32
...RYI relay, 33...RY2 relay.

Claims

[Scope of utility model registration request]

Provided between two sections that transport sheet materials,
In a loop control device equipped with a proportional-integral control circuit that controls the position of a loop that temporarily stores sheet material to a zero point position according to a temporary speed difference between sections, the loop position is near the zero point. A zero point detector detects this, and when the loop position is not near the zero point, the proportional-integral control circuit performs only proportional control operation, and when it is near the zero point, it causes the proportional-integral control circuit to perform proportional-integral control operation. A loop control device characterized by being provided with a control switching circuit.