JPS5666184A - Regular and reverse rotation speed instruction change- over circuit for motor speed controller - Google Patents

Regular and reverse rotation speed instruction change- over circuit for motor speed controller

Info

Publication number
JPS5666184A
JPS5666184A JP14087879A JP14087879A JPS5666184A JP S5666184 A JPS5666184 A JP S5666184A JP 14087879 A JP14087879 A JP 14087879A JP 14087879 A JP14087879 A JP 14087879A JP S5666184 A JPS5666184 A JP S5666184A
Authority
JP
Japan
Prior art keywords
circuit
speed
speed instruction
amplifier
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
JP14087879A
Other languages
Japanese (ja)
Inventor
Masahiro Yoshida
Hidehiko Sugimoto
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 JP14087879A priority Critical patent/JPS5666184A/en
Publication of JPS5666184A publication Critical patent/JPS5666184A/en
Pending 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors

Abstract

PURPOSE:To enable an AC pulse generator to be used without the change-over of a feedback circuit by making choice of a amplifier and change-over of a control circuit in accordance with the output of a polarity judging circuit and an FF circuit judging the input from a zero-speed detecting circuit. CONSTITUTION:An amplifier 36 making minus clamp at a gain of +1 and an amplifier 38 making minus clamp at a gain of -1 are connected to a speed instruction outputting control means 32. When the regular rotation (plus) speed instruction of the control means 32 is changed to reverse rotation (minus) speed instruction, no signal is outputted by a zero-speed detecting circuit 42 althrough the output of a polarity circuit 40 inverts so that the output of a flip-flop circuit does not change. Therefore, a relay 46 is kept on and the speed instruction supplied to a controller 10 represents zero-speed. When the speed of a motor has come close to zero, the output of the circuit 44 inverts to turn off the relay 46. Therefore, speed instruction is fed via the amplifier 38 and the controller 10 inverts in polarity.
JP14087879A 1979-10-31 1979-10-31 Regular and reverse rotation speed instruction change- over circuit for motor speed controller Pending JPS5666184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14087879A JPS5666184A (en) 1979-10-31 1979-10-31 Regular and reverse rotation speed instruction change- over circuit for motor speed controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14087879A JPS5666184A (en) 1979-10-31 1979-10-31 Regular and reverse rotation speed instruction change- over circuit for motor speed controller

Publications (1)

Publication Number Publication Date
JPS5666184A true JPS5666184A (en) 1981-06-04

Family

ID=15278856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14087879A Pending JPS5666184A (en) 1979-10-31 1979-10-31 Regular and reverse rotation speed instruction change- over circuit for motor speed controller

Country Status (1)

Country Link
JP (1) JPS5666184A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62210885A (en) * 1986-03-11 1987-09-16 Sanyo Electric Co Ltd Inversion control of motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62210885A (en) * 1986-03-11 1987-09-16 Sanyo Electric Co Ltd Inversion control of motor

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