JPS5739312A - Pulse encoder device having alarm circuit - Google Patents

Pulse encoder device having alarm circuit

Info

Publication number
JPS5739312A
JPS5739312A JP11334780A JP11334780A JPS5739312A JP S5739312 A JPS5739312 A JP S5739312A JP 11334780 A JP11334780 A JP 11334780A JP 11334780 A JP11334780 A JP 11334780A JP S5739312 A JPS5739312 A JP S5739312A
Authority
JP
Japan
Prior art keywords
pulse encoder
pulse
register
emitting
output
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.)
Granted
Application number
JP11334780A
Other languages
Japanese (ja)
Other versions
JPH0371644B2 (en
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 JP11334780A priority Critical patent/JPS5739312A/en
Publication of JPS5739312A publication Critical patent/JPS5739312A/en
Publication of JPH0371644B2 publication Critical patent/JPH0371644B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/16—Controlling the angular speed of one shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To prevent the unstability of control circuits by counting the output pulses of a pulse encoder in accordance with rotating directions, and emitting an alarm when the value thereof and the signal emitting one pulse at one revolution of the pulse encoder are not in a correct relation. CONSTITUTION:The outputs of photodetectors 21, 22 of a pulse encoder are waveform shaped 31, 32, and are discriminated of directions; at the same time, they are converted 34 to quadruple frequency signals. The outputs thereof are supplied to an addition-subtraction counter 35. On the other hand, the output of a photodetector 25 emitting one pulse per revolution of a circuit slit is waveform shaped 33, and the output of the counter 35 is gated by this signal and is supplied to a register 36. When the pulse encoder is operating correctly, a value of 0 or 4N is set in the register 36. When the register 36 sets values other than these, an abnormality discriminating circuit 37 detects this and emits an alarm.
JP11334780A 1980-08-20 1980-08-20 Pulse encoder device having alarm circuit Granted JPS5739312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11334780A JPS5739312A (en) 1980-08-20 1980-08-20 Pulse encoder device having alarm circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11334780A JPS5739312A (en) 1980-08-20 1980-08-20 Pulse encoder device having alarm circuit

Publications (2)

Publication Number Publication Date
JPS5739312A true JPS5739312A (en) 1982-03-04
JPH0371644B2 JPH0371644B2 (en) 1991-11-14

Family

ID=14609941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11334780A Granted JPS5739312A (en) 1980-08-20 1980-08-20 Pulse encoder device having alarm circuit

Country Status (1)

Country Link
JP (1) JPS5739312A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169027A (en) * 1982-03-31 1983-10-05 Tokyo Optical Co Ltd Displacement measuring device
JPS58150105U (en) * 1982-03-31 1983-10-07 東光株式会社 Encoder multiplier circuit
WO1984001821A1 (en) * 1982-10-26 1984-05-10 Fanuc Ltd Device for detecting position of rotor of motor
JPS6281015U (en) * 1985-11-08 1987-05-23

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58169027A (en) * 1982-03-31 1983-10-05 Tokyo Optical Co Ltd Displacement measuring device
JPS58150105U (en) * 1982-03-31 1983-10-07 東光株式会社 Encoder multiplier circuit
JPH0326326B2 (en) * 1982-03-31 1991-04-10 Topukon Kk
WO1984001821A1 (en) * 1982-10-26 1984-05-10 Fanuc Ltd Device for detecting position of rotor of motor
JPS6281015U (en) * 1985-11-08 1987-05-23

Also Published As

Publication number Publication date
JPH0371644B2 (en) 1991-11-14

Similar Documents

Publication Publication Date Title
JPS53149076A (en) Digital frequency detecting circuit
JPS5739311A (en) Pulse encoder device having alarm circuit
JPS5739312A (en) Pulse encoder device having alarm circuit
JPS55141817A (en) Control unit for detection signal
JPS5547720A (en) Channel selection unit
JPS6426164A (en) Speed detecting device
JPS5418784A (en) Discontinuity detector of period double pulses
JPS5647976A (en) Recording position detection system
CA2056197A1 (en) Circuit for generating a disk change signal
SU830463A1 (en) Phase-to-time interval converter
JPS5754432A (en) Count data input circuit
JPS57207828A (en) Signal converter
JPS6416919A (en) Rotational angle detector
JPS5477149A (en) Magnetic body detector
JPS56138330A (en) Noise rejector for constant input judgement
JPS56153864A (en) Pn generator commonly used as frame counter
JPS5784369A (en) Abnormality detecting system for circuit device
JPS5785586A (en) Speed detecting circuit for motor
JPS57208724A (en) Mode discriminating circuit
JPS56124105A (en) Rotary head switching circuit
JPS5561865A (en) Information processor
JPS5643576A (en) Clock equipped with voice generator
JPS57182655A (en) Speed display device for vehicle
JPS573146A (en) Retry control device for electronic computer
JPS5690261A (en) Detecting device for rotational number of rotary shaft