JPS5665207A - Trouble detecting device for rotating detector - Google Patents

Trouble detecting device for rotating detector

Info

Publication number
JPS5665207A
JPS5665207A JP14067079A JP14067079A JPS5665207A JP S5665207 A JPS5665207 A JP S5665207A JP 14067079 A JP14067079 A JP 14067079A JP 14067079 A JP14067079 A JP 14067079A JP S5665207 A JPS5665207 A JP S5665207A
Authority
JP
Japan
Prior art keywords
detector
rotation
relay
current
rotation detector
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
JP14067079A
Other languages
Japanese (ja)
Inventor
Noriaki Hirose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14067079A priority Critical patent/JPS5665207A/en
Publication of JPS5665207A publication Critical patent/JPS5665207A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Velocity Or Acceleration (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To improve reliability of trouble detection in a speed controller of an elec- tric motor by judging a rotation detector to be out of order if a rotating body is energized for more than a fixed time without output of the rotation detector. CONSTITUTION:The output pulse of a rotation detector 1 is detected by a rotation level detector 2. If this value is less than the lowest rotation control area, the output of the rotation detector 1 is judged to be zero, and a relay 6 is made nonexcitation state. Then, the output of a current detector 7 that detects energizing current of the rotating body is detected by a current level detector 8. If this value is higher than the minimum current control current, the rotating budy is judged to be energized, and a relay 9 is made a excitation state. Then, the time between the nonexcitation state of the relay 6 and excitation state of the relay 9 is measured with a timer 10. If this continues for a fixed time, the rotation detector 1 is judged to be out of order. In this way, reliability of the trouble detecting device of the rotation detector can be improved.
JP14067079A 1979-10-31 1979-10-31 Trouble detecting device for rotating detector Pending JPS5665207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14067079A JPS5665207A (en) 1979-10-31 1979-10-31 Trouble detecting device for rotating detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14067079A JPS5665207A (en) 1979-10-31 1979-10-31 Trouble detecting device for rotating detector

Publications (1)

Publication Number Publication Date
JPS5665207A true JPS5665207A (en) 1981-06-02

Family

ID=15274022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14067079A Pending JPS5665207A (en) 1979-10-31 1979-10-31 Trouble detecting device for rotating detector

Country Status (1)

Country Link
JP (1) JPS5665207A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201070A (en) * 1982-05-20 1983-11-22 Honda Motor Co Ltd Detection for abnormality of engine rotation sensor and method for measuring engine speed for abnormality
JPH1084688A (en) * 1996-08-20 1998-03-31 Samsung Electron Co Ltd Apparatus and method for detecting abnormal state of motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201070A (en) * 1982-05-20 1983-11-22 Honda Motor Co Ltd Detection for abnormality of engine rotation sensor and method for measuring engine speed for abnormality
JPH1084688A (en) * 1996-08-20 1998-03-31 Samsung Electron Co Ltd Apparatus and method for detecting abnormal state of motor

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