JPS5588595A - Method and apparatus for driving control of plurality of motor - Google Patents

Method and apparatus for driving control of plurality of motor

Info

Publication number
JPS5588595A
JPS5588595A JP15985078A JP15985078A JPS5588595A JP S5588595 A JPS5588595 A JP S5588595A JP 15985078 A JP15985078 A JP 15985078A JP 15985078 A JP15985078 A JP 15985078A JP S5588595 A JPS5588595 A JP S5588595A
Authority
JP
Japan
Prior art keywords
motors
switching
motor
contactors
current relay
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
JP15985078A
Other languages
Japanese (ja)
Other versions
JPS6137877B2 (en
Inventor
Kazuo Hatakeyama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15985078A priority Critical patent/JPS5588595A/en
Publication of JPS5588595A publication Critical patent/JPS5588595A/en
Publication of JPS6137877B2 publication Critical patent/JPS6137877B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

PURPOSE: To enhance speed performance by continuing the operational condition of one of a plurality of motors and switching the other motor to stop at the time when the values of the operating currents of a plurality of motors are decreased below a specified value.
CONSTITUTION: A ceiling crane is moved by 2 motors 5 and 6. The motors 5 and 6 are operated in varying ratios associated with the set-up of the combination of opening and closing of secondary acceleration contactors 8∼10 and 12∼14 as directed by handling instructions of a controller and secondary resistors 7 and 11. Switching contactors 3 and 4 and a current relay 15 are provided so that they are linked together. When one motor is stopped, the other switching contactor is cut out by sensed result of the current relay 15. When the acceleration by the motors 5 and 6 has been completed, switching to one-motor operation is automatically made. Therefore, driving energy can be saved, frequencies of using 2 motors are balanced, and the speed-control performance can be enhanced.
COPYRIGHT: (C)1980,JPO&Japio
JP15985078A 1978-12-27 1978-12-27 Method and apparatus for driving control of plurality of motor Granted JPS5588595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15985078A JPS5588595A (en) 1978-12-27 1978-12-27 Method and apparatus for driving control of plurality of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15985078A JPS5588595A (en) 1978-12-27 1978-12-27 Method and apparatus for driving control of plurality of motor

Publications (2)

Publication Number Publication Date
JPS5588595A true JPS5588595A (en) 1980-07-04
JPS6137877B2 JPS6137877B2 (en) 1986-08-26

Family

ID=15702590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15985078A Granted JPS5588595A (en) 1978-12-27 1978-12-27 Method and apparatus for driving control of plurality of motor

Country Status (1)

Country Link
JP (1) JPS5588595A (en)

Also Published As

Publication number Publication date
JPS6137877B2 (en) 1986-08-26

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