JPS60143363U - Speed abnormality detection circuit - Google Patents

Speed abnormality detection circuit

Info

Publication number
JPS60143363U
JPS60143363U JP1984029311U JP2931184U JPS60143363U JP S60143363 U JPS60143363 U JP S60143363U JP 1984029311 U JP1984029311 U JP 1984029311U JP 2931184 U JP2931184 U JP 2931184U JP S60143363 U JPS60143363 U JP S60143363U
Authority
JP
Japan
Prior art keywords
speed
detection circuit
abnormality
abnormality detection
actual
Prior art date
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
JP1984029311U
Other languages
Japanese (ja)
Inventor
下津　忠夫
敏 井堀
東藤　康正
和美 林
Original Assignee
株式会社日立製作所
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 by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP1984029311U priority Critical patent/JPS60143363U/en
Publication of JPS60143363U publication Critical patent/JPS60143363U/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、誘導電動機の基本的な運転、停止を行なうた
めの回路図、第２図は、失速を検出するための回路図、
第３図は、本考案の一つの実施例による速度異常検出回
路を示す回路眸第４図は動作を説明するための図である
。Figure 1 is a circuit diagram for basic operation and stopping of an induction motor, Figure 2 is a circuit diagram for detecting stall,
FIG. 3 is a circuit diagram showing a speed abnormality detection circuit according to one embodiment of the present invention, and FIG. 4 is a diagram for explaining the operation.

Claims (1)

【実用新案登録請求の範囲】 １速度指令パターンに従って、加減速、グ定速運転する
可変速制御装置において、該速度指令パターンと、実回
転速度パターンとの差を検出し、その差が、予め、定検
だ速度以上になった時実速度異常を検出する速度異常検
出回路。 ２　実用新案登録請求の範囲第１項において、予め定め
た速度以上を積分し、その時間が、予め定めた時間以上
になった時、実速度異常を検出する速度異常検出回路。 ３　実用新案登録請求の範囲第１項において、速度指令
パターンと、実速度パターンの符号により、異常検出時
、速度が暴走しているか失速し、　　　　ているか検出
し表示することを可能とした速度異常検出回路。[Claims for Utility Model Registration] 1. In a variable speed control device that accelerates, decelerates, and operates at a constant speed according to a speed command pattern, the difference between the speed command pattern and the actual rotational speed pattern is detected, and the difference is detected in advance. , a speed abnormality detection circuit that detects an actual speed abnormality when the speed exceeds the regular inspection speed. 2. A speed abnormality detection circuit that integrates speeds greater than a predetermined speed and detects an actual speed abnormality when the time exceeds a predetermined time, as set forth in Paragraph 1 of the claims for utility model registration. 3. In Paragraph 1 of the Claims for Utility Model Registration, a speed abnormality that makes it possible to detect and display whether the speed is running out of control or stalling when an abnormality is detected, based on the speed command pattern and the code of the actual speed pattern. detection circuit.
JP1984029311U 1984-03-02 1984-03-02 Speed abnormality detection circuit Pending JPS60143363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984029311U JPS60143363U (en) 1984-03-02 1984-03-02 Speed abnormality detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984029311U JPS60143363U (en) 1984-03-02 1984-03-02 Speed abnormality detection circuit

Publications (1)

Publication Number Publication Date
JPS60143363U true JPS60143363U (en) 1985-09-24

Family

ID=30528003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984029311U Pending JPS60143363U (en) 1984-03-02 1984-03-02 Speed abnormality detection circuit

Country Status (1)

Country Link
JP (1) JPS60143363U (en)

Similar Documents

Publication Publication Date Title
JPS58180347U (en) Engine-driven air conditioner
JPS5932552U (en) Vehicle safety driving aid device
JPS60143363U (en) Speed abnormality detection circuit
JPS6085207U (en) Automotive air suspension device
JPS60180010U (en) Automatic guided vehicle speed control device
JPS59165008U (en) Automatic guided vehicle movement measuring device
JPS59126714U (en) Vehicle air conditioner
JPS60193829U (en) Vehicle running control device
JPS59172659U (en) Vehicle wiper drive control device
JPS59126715U (en) Protection device for vehicle air conditioner
JPS58161971U (en) Crane overspeed detection device
JPS586587U (en) Motor start/stop control circuit
JPS5825235U (en) Running condition monitoring device
JPS59160419U (en) Roll stopper control device
JPS6036322U (en) Roll stopper control device
JPS60177333U (en) Vehicle clutch control device
JPS6312210U (en)
JPS58193264U (en) Vehicle deceleration display device
JPS60110057U (en) wiper drive device
JPS5995845U (en) Combine drive control device
JPS6026247U (en) Automobile constant speed running device
JPS58180470U (en) Slip detection device for belt transmission mechanism
JPS5817907U (en) Machine tool chuck stop positioning device
JPS5892278U (en) Operation abnormality detection device for hoisting equipment
JPS5899609U (en) Measuring device