JPH02139493U - - Google Patents

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Publication number
JPH02139493U
JPH02139493U JP1989048813U JP4881389U JPH02139493U JP H02139493 U JPH02139493 U JP H02139493U JP 1989048813 U JP1989048813 U JP 1989048813U JP 4881389 U JP4881389 U JP 4881389U JP H02139493 U JPH02139493 U JP H02139493U
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JP
Japan
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1989048813U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989048813U priority Critical patent/JPH02139493U/ja
Publication of JPH02139493U publication Critical patent/JPH02139493U/ja
Pending legal-status Critical Current

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  • Control Of Electric Motors In General (AREA)

Description

【図面の簡単な説明】
第1図は本考案の回路図、第2図、第3図は動
作説明用の図である。第4図は従来例の回路図で
ある。 21…差動増幅器(差動器)、21…第1リレ
ー(スイツチ)、23…第1無極性コンパレータ
(第1検知手段)、25…第2無極性コンパレー
タ(第2検知手段)。

Claims (1)

  1. 【実用新案登録請求の範囲】 電動機の設定回転数と動作回転数との差を検出
    する差動器と、 前記差動器の検出値が所定値を越えたことを検
    知する第1検知手段と、 前記差動器と前記第1検知手段との間の回路を
    開閉するスイツチと、 前記電動機の電流が所定値以上になつたとき、
    前記スイツチを作動させて前記差動器と前記第1
    検知手段との間の回路を開にする第2検知手段を
    有してなる、 電動機駆動制御系の動作監視装置。
JP1989048813U 1989-04-27 1989-04-27 Pending JPH02139493U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989048813U JPH02139493U (ja) 1989-04-27 1989-04-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989048813U JPH02139493U (ja) 1989-04-27 1989-04-27

Publications (1)

Publication Number Publication Date
JPH02139493U true JPH02139493U (ja) 1990-11-21

Family

ID=31565960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989048813U Pending JPH02139493U (ja) 1989-04-27 1989-04-27

Country Status (1)

Country Link
JP (1) JPH02139493U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066680A (ja) * 1983-09-21 1985-04-16 Mitsubishi Electric Corp モ−タ駆動制御装置の異常検出回路
JPS63124789A (ja) * 1986-11-13 1988-05-28 Toshiba Corp モ−タの回転異常検知装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066680A (ja) * 1983-09-21 1985-04-16 Mitsubishi Electric Corp モ−タ駆動制御装置の異常検出回路
JPS63124789A (ja) * 1986-11-13 1988-05-28 Toshiba Corp モ−タの回転異常検知装置

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