JPS5776412A - Fault detecting system for pulse encoder - Google Patents

Fault detecting system for pulse encoder

Info

Publication number
JPS5776412A
JPS5776412A JP15145580A JP15145580A JPS5776412A JP S5776412 A JPS5776412 A JP S5776412A JP 15145580 A JP15145580 A JP 15145580A JP 15145580 A JP15145580 A JP 15145580A JP S5776412 A JPS5776412 A JP S5776412A
Authority
JP
Japan
Prior art keywords
phase
slit
radius
pulse
pulse encoder
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
JP15145580A
Other languages
Japanese (ja)
Inventor
Yoshitoku Kozai
Yoichi Amamiya
Sunao Asahara
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP15145580A priority Critical patent/JPS5776412A/en
Publication of JPS5776412A publication Critical patent/JPS5776412A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G01D5/24461—Failure detection by redundancy or plausibility

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To detect faults of a pulse encoder by providing two slit trains arranged so as to have 90 deg. phase shift and a slit generating one pulse per rotation on a rotary disc. CONSTITUTION:A rotary disc is provided with A-phase slit train 11 dividing the circumference having radius RA into N, B-phase slit train 12 dividing the circumference having radius RB into N and a Z-phase slit 13 on the circimference having radius Rz. The A- and B-phase slit trains are arranged so as to biased by 1/4 pitch. Thus, faults can be detected by judging the levels of A- and B-phase pulses at leading and trailing edge parts of Z-phase pulse.
JP15145580A 1980-10-30 1980-10-30 Fault detecting system for pulse encoder Pending JPS5776412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15145580A JPS5776412A (en) 1980-10-30 1980-10-30 Fault detecting system for pulse encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15145580A JPS5776412A (en) 1980-10-30 1980-10-30 Fault detecting system for pulse encoder

Publications (1)

Publication Number Publication Date
JPS5776412A true JPS5776412A (en) 1982-05-13

Family

ID=15518940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15145580A Pending JPS5776412A (en) 1980-10-30 1980-10-30 Fault detecting system for pulse encoder

Country Status (1)

Country Link
JP (1) JPS5776412A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102103A (en) * 1982-12-03 1984-06-13 Kawasaki Heavy Ind Ltd Monitoring device of rotary shaft sensor
JPS6293618A (en) * 1985-10-18 1987-04-30 Yaskawa Electric Mfg Co Ltd Pulse generator abnormality detection method
JPH01113664A (en) * 1987-10-27 1989-05-02 Honda Motor Co Ltd How to determine engine rotation status

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102103A (en) * 1982-12-03 1984-06-13 Kawasaki Heavy Ind Ltd Monitoring device of rotary shaft sensor
JPS6293618A (en) * 1985-10-18 1987-04-30 Yaskawa Electric Mfg Co Ltd Pulse generator abnormality detection method
JPH01113664A (en) * 1987-10-27 1989-05-02 Honda Motor Co Ltd How to determine engine rotation status

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