JPS6181195A - Motor controller - Google Patents

Motor controller

Info

Publication number
JPS6181195A
JPS6181195A JP59202700A JP20270084A JPS6181195A JP S6181195 A JPS6181195 A JP S6181195A JP 59202700 A JP59202700 A JP 59202700A JP 20270084 A JP20270084 A JP 20270084A JP S6181195 A JPS6181195 A JP S6181195A
Authority
JP
Japan
Prior art keywords
load current
motor
set value
flop
flip
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
JP59202700A
Other languages
Japanese (ja)
Inventor
Shigeru Miyaji
Kiyoji Iemura
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.)
M SYST GIKEN KK
Original Assignee
M SYST GIKEN KK
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 M SYST GIKEN KK filed Critical M SYST GIKEN KK
Priority to JP59202700A priority Critical patent/JPS6181195A/en
Publication of JPS6181195A publication Critical patent/JPS6181195A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/02Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude

Abstract

PURPOSE:To reduce the cost by intermittently supplying power to a motor in response to the amplitude relation between the load current and the set value of a motor, thereby eliminating a torque sensor or a limit switch. CONSTITUTION:When a contact 3 is closed, a flip-flop 5 is set, and a flip-flop 6 is reset. Then, a switching element 7 is ON, a switching element 8 is OFF, a motor 9 is normally rotated to open a valve. When the valve arrives at the opening end position, the load torque of the motor 9 abrupting increases to rapidly increase the load current of the motor. A load current monitor 11 compares the load current with the set value, and when the load current increases larger than the set value, a timer circuit 15 operates. When the counting of the timer 15 is completed, if the load current is still larger than the set value, the output of an AND gate 16 becomes 'H', and the flip-flop 5 is reset by a signal from the gate 2, and the element 7 is turned OFF.
JP59202700A 1984-09-27 1984-09-27 Motor controller Pending JPS6181195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59202700A JPS6181195A (en) 1984-09-27 1984-09-27 Motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59202700A JPS6181195A (en) 1984-09-27 1984-09-27 Motor controller

Publications (1)

Publication Number Publication Date
JPS6181195A true JPS6181195A (en) 1986-04-24

Family

ID=16461708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59202700A Pending JPS6181195A (en) 1984-09-27 1984-09-27 Motor controller

Country Status (1)

Country Link
JP (1) JPS6181195A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5683001A (en) * 1993-12-03 1997-11-04 Nec Corporation Rack for mounting electronic apparatuses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132610A (en) * 1980-01-25 1981-10-17 Hitachi Ltd Controller using electronic timer
JPS5967826A (en) * 1982-10-06 1984-04-17 Tsubakimoto Chain Co Overload/light load protecting device for motor driven mach-ine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132610A (en) * 1980-01-25 1981-10-17 Hitachi Ltd Controller using electronic timer
JPS5967826A (en) * 1982-10-06 1984-04-17 Tsubakimoto Chain Co Overload/light load protecting device for motor driven mach-ine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5683001A (en) * 1993-12-03 1997-11-04 Nec Corporation Rack for mounting electronic apparatuses

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