JPS594001U

JPS594001U - Bumpless switching device for dual control system

Info

Publication number: JPS594001U
Application number: JP9602282U
Authority: JP
Inventors: 稲葉　孝一; 茂彦松田
Original assignee: 三菱電機株式会社
Priority date: 1982-06-25
Filing date: 1982-06-25
Publication date: 1984-01-11

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 drawings]

第１図は、従来の二重系システムのバンプレス切替装置
を示すブロック図、第２図は本考案の一実施例による二
重系システムのバンプレス切替装置を示すブロック図、
第３図は本考案の他の一実施例による二重系システムの
バンプレス切替装置を示すブロック図である。１０：制御系、２０：待機系、１１．２１：偏差演算部
、１２．　２２：調節部、１４．２４：信号選択部、３
０：切替装置、４０．４０Ａ、４０Ｂ、電圧／パルス変
換器、５０：パルス／空気圧変換器、６０：操作端。な
お、図中、同一符号は同−又は相当部分を示す。FIG. 1 is a block diagram showing a bumpless switching device for a conventional dual system system, and FIG. 2 is a block diagram showing a bumpless switching device for a dual system system according to an embodiment of the present invention.
FIG. 3 is a block diagram showing a bumpless switching device for a dual system according to another embodiment of the present invention. 10: Control system, 20: Standby system, 11.21: Deviation calculation section, 12. 22: Adjustment section, 14.24: Signal selection section, 3
0: switching device, 40.40A, 40B, voltage/pulse converter, 50: pulse/pneumatic pressure converter, 60: operating end. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) a signal selection unit that inputs a process quantity measurement signal and a target signal and outputs either one; and a deviation calculation unit that calculates the deviation between the output signal of the signal selection unit and the measurement signal;
A switching device that switches between the control system and the standby system, comprising a side control system and a standby system, and an adjustment section that calculates a command value for the operating position of the operating end based on the deviation and outputs a position control signal; a drive device that drives the operating end until the operation position information of the operating end matches a command value based on a position control signal from the adjustment section inputted via the switching device; The selection section selectively outputs the target signal so that the deviation calculation section outputs the deviation between the measurement signal and the target signal, while the standby signal selection section selectively outputs the measurement signal. The standby system adjusts the position of the operating end by the control system by setting the output from the deviation calculating section to zero and sending an operating position signal of the operating end from the drive device to the adjusting section of the standby system. A bumpless switching device for a dual control system characterized by having a tracking configuration.

(2) a voltage/pulse converter that outputs a pulse signal to the drive device until the operation position information of the operation end matches the command value based on the position control signal from the adjustment section;
The pulse signal is connected in series with a pulse/pneumatic converter that converts the pulse signal into a pneumatic signal to drive the operating end, and the pulse/pneumatic converter is connected to the voltage/pulse converter and the standby system adjustment section. A bumpless switching device for a dual-system control system according to claim 1, characterized in that the above-mentioned operation position signal is sent out.

(3) A request for registration of a utility model characterized in that the voltage/pulse converters are provided in the control system and the standby system, respectively, and are connected in series to the common pulse/pneumatic converter via the switching device. A bumpless switching device for a dual system control system according to item 2.