JPS5496727A - Speed control system of motor - Google Patents

Speed control system of motor

Info

Publication number
JPS5496727A
JPS5496727A JP305678A JP305678A JPS5496727A JP S5496727 A JPS5496727 A JP S5496727A JP 305678 A JP305678 A JP 305678A JP 305678 A JP305678 A JP 305678A JP S5496727 A JPS5496727 A JP S5496727A
Authority
JP
Japan
Prior art keywords
drift
circuit
difference
speed reference
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.)
Pending
Application number
JP305678A
Other languages
Japanese (ja)
Inventor
Yasuo Nagatani
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 JP305678A priority Critical patent/JPS5496727A/en
Publication of JPS5496727A publication Critical patent/JPS5496727A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To continue stable speed control operation when the excessive drift of a revolution- indicator generator is generated, by giving an alarm to the outside by detecting the excessive drift while automatically compensating speed reference signals from drift values.
CONSTITUTION: The drift of a revolution-indicator generator 6 is detected by means of drift detecting circuit 9, and speed reference signals are corrected by means of a speed reference correction circuit 10 while an alarm is put out to the outside. The output of a ripple detecting circuit 11 and the output of a ripple reference circuit 12 are compared by means of a comparison circuit 13, and an alarm is put out to the outside when abnormality. When detecting drift, difference between output pulse signals obtained by converting the output voltage of a speed reference set resistor 3 into frequency and the output pulse signals of a pulse oscillator 14 directly connected to a DC generator 5 is detected, difference between reference frequency and feedback frequency is detected by means of a polarity detecting circuit, difference pulse is subtracted at the plus side or the minus side in response to the difference and correction signals corresponding to excessive drift quantity at the plus side or the minus side are given through the speed reference correction circuit 10.
COPYRIGHT: (C)1979,JPO&Japio
JP305678A 1978-01-14 1978-01-14 Speed control system of motor Pending JPS5496727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP305678A JPS5496727A (en) 1978-01-14 1978-01-14 Speed control system of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP305678A JPS5496727A (en) 1978-01-14 1978-01-14 Speed control system of motor

Publications (1)

Publication Number Publication Date
JPS5496727A true JPS5496727A (en) 1979-07-31

Family

ID=11546658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP305678A Pending JPS5496727A (en) 1978-01-14 1978-01-14 Speed control system of motor

Country Status (1)

Country Link
JP (1) JPS5496727A (en)

Similar Documents

Publication Publication Date Title
JPS5496727A (en) Speed control system of motor
JPS6450792A (en) Inverter
JPS57182858A (en) Monitor circuit for program runaway in computer
JPS55100075A (en) Sine wave inverter
JPS5513689A (en) Speed controller of motor
JPS56117591A (en) Controller for motor
JPS5367848A (en) Output voltage compensating circuit for dc power source
JPS5543963A (en) Motor controller
JPS57138891A (en) Speed control system for motor
JPS5335918A (en) Speed controller of motor
JPS54156114A (en) Motor driving circuit
JPS5541121A (en) Controller for commutatorless motor
JPS5416648A (en) Harmonic current compensator
JPS55152461A (en) Analogue speed detector
JPS54110421A (en) Chopper controller
JPS5479417A (en) Inverter control circuit for motor driveng
JPS54134331A (en) Phase controller
JPS57201856A (en) Drive alarm device for car
JPS54155425A (en) Control of inverter
JPS57175964A (en) Frequency detector
SU1030939A1 (en) Digital d.c. electric drive
JPS5646471A (en) Voltage deviation detecting circuit
JPS5495439A (en) Protector for motor of elevator
JPS5525208A (en) Horizontal automatic frequency control circuit
JPS53133723A (en) Controller for pulse-with controller inverter