JPS6464574A - Motor controller - Google Patents

Motor controller

Info

Publication number
JPS6464574A
JPS6464574A JP62221336A JP22133687A JPS6464574A JP S6464574 A JPS6464574 A JP S6464574A JP 62221336 A JP62221336 A JP 62221336A JP 22133687 A JP22133687 A JP 22133687A JP S6464574 A JPS6464574 A JP S6464574A
Authority
JP
Japan
Prior art keywords
unit
measurement
result
period
outputted
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
JP62221336A
Other languages
Japanese (ja)
Inventor
Seiichirou Tamamushi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62221336A priority Critical patent/JPS6464574A/en
Publication of JPS6464574A publication Critical patent/JPS6464574A/en
Pending legal-status Critical Current

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  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To prevent faulty rotating speed control, by a method wherein a present measured result is outputted as a control information when the result of measurement of the rotating speed of a motor is within a specified range while the result of a past measurement is outputted from a memory as the control information when the result of measurement of the rotating speed of the motor is not within the specified range. CONSTITUTION:When a starting command is outputted, a current control unit 5 supplies a spindle motor 3 with a predetermined driving current. When the spindle motor 3 is rotated, the period of the motor 3 is measured by a period measuring unit 4 and the result of the measurement is outputted to a memory 7, a period inspecting unit 8 and a periodical data selecting unit 9. The memory unit 7 outputs the result of measurement, stored at the latest measurement, to the periodical data selecting unit 9. The period inspecting unit 8 outputs a command to the periodical data selecting unit 9 to output the output of the period measuring unit 4 to a current control unit 5 when the result of measurement of the period measuring unit 4 is within a specified range. The period inspecting unit 8 outputs a command to the periodical data selecting unit 9 to select the output of the memory unit 7 when the result of measurement of the period measuring unit 4 is out of the specified range.
JP62221336A 1987-09-04 1987-09-04 Motor controller Pending JPS6464574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62221336A JPS6464574A (en) 1987-09-04 1987-09-04 Motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62221336A JPS6464574A (en) 1987-09-04 1987-09-04 Motor controller

Publications (1)

Publication Number Publication Date
JPS6464574A true JPS6464574A (en) 1989-03-10

Family

ID=16765209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62221336A Pending JPS6464574A (en) 1987-09-04 1987-09-04 Motor controller

Country Status (1)

Country Link
JP (1) JPS6464574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1037295B2 (en) † 1999-03-11 2005-12-14 Umicore AG & Co. KG Method for applying electrode layers on a tape-like polymer electrolyte membrane for fuel cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1037295B2 (en) † 1999-03-11 2005-12-14 Umicore AG & Co. KG Method for applying electrode layers on a tape-like polymer electrolyte membrane for fuel cells

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