JPS6485590A - Motor brake - Google Patents

Motor brake

Info

Publication number
JPS6485590A
JPS6485590A JP24293187A JP24293187A JPS6485590A JP S6485590 A JPS6485590 A JP S6485590A JP 24293187 A JP24293187 A JP 24293187A JP 24293187 A JP24293187 A JP 24293187A JP S6485590 A JPS6485590 A JP S6485590A
Authority
JP
Japan
Prior art keywords
motor
coil
switch
contact
rotational speed
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
JP24293187A
Other languages
Japanese (ja)
Other versions
JPH0463632B2 (en
Inventor
Yoichi Kikukawa
Toshihiro Kanehara
Yutaka Ono
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa 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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP24293187A priority Critical patent/JPS6485590A/en
Publication of JPS6485590A publication Critical patent/JPS6485590A/en
Publication of JPH0463632B2 publication Critical patent/JPH0463632B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To obtain the greatest braking force, even if a failure occurs in the control system of a motor, by detecting the rotational speed of said motor on the basis of a current flowing through a motor coil. CONSTITUTION:In the normal mode, a dynamic braking control circuit 5 connects a switch SW1 with a contact a1 by a control signal S1. Consequently, a motor driving circuit 1 supplies the coil L of a motor 2 with an exciting current to drive said motor 2. In the braking mode, the dynamic braking control circuit 5 connects the switch SW1 with a contact a2 by the control signal S1. In this case, when the rotational speed of the motor detected on the basis of a current flowing through the coil L is higher than a given reference value, the switch SW2 is transferred to a contact b1 to brake the motor by a CR parallel circuit. Also, when the rotational speed is lower than the reference value, said switch SW2 is transferred to the contact b2 side to brake a motor by shorting the coil L.
JP24293187A 1987-09-28 1987-09-28 Motor brake Granted JPS6485590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24293187A JPS6485590A (en) 1987-09-28 1987-09-28 Motor brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24293187A JPS6485590A (en) 1987-09-28 1987-09-28 Motor brake

Publications (2)

Publication Number Publication Date
JPS6485590A true JPS6485590A (en) 1989-03-30
JPH0463632B2 JPH0463632B2 (en) 1992-10-12

Family

ID=17096345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24293187A Granted JPS6485590A (en) 1987-09-28 1987-09-28 Motor brake

Country Status (1)

Country Link
JP (1) JPS6485590A (en)

Also Published As

Publication number Publication date
JPH0463632B2 (en) 1992-10-12

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