JPH0336994A - Treating method for malfunction of inverter - Google Patents

Treating method for malfunction of inverter

Info

Publication number
JPH0336994A
JPH0336994A JP1168069A JP16806989A JPH0336994A JP H0336994 A JPH0336994 A JP H0336994A JP 1168069 A JP1168069 A JP 1168069A JP 16806989 A JP16806989 A JP 16806989A JP H0336994 A JPH0336994 A JP H0336994A
Authority
JP
Japan
Prior art keywords
motor
malfunction
inverter
command
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.)
Pending
Application number
JP1168069A
Other languages
Japanese (ja)
Inventor
Toru Kai
Hidetoshi Ryu
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP1168069A priority Critical patent/JPH0336994A/en
Publication of JPH0336994A publication Critical patent/JPH0336994A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To abruptly reset a motor decelerated to a predetermined low speed to one before a malfunction by interrupting an inverter output by the malfunction detection of the inverter, coasting a motor, and DC-braking it to avoid the voltage rise of the inverter.
CONSTITUTION: If a malfunction is detected by a malfunction detector 11 during operation of a motor 3, the output of an inverter 2 is interrupted, and the motor 3 is coasted. The value of a frequency command 7 of a malfunction detection point t0 is stored. After predetermined time is elapsed, a DC current is supplied to the motor 3 to DC-brake the motor 3 to abruptly decelerate it. The command 7 is checked at a time point t3 when the motor 3 becomes a set speed or less, and if the command 7 is applied, it is recovered to the rotating speed N at the time t0 of the malfunction detection, while if the command is reversely not applied, it can be stopped as it is. The motor can be recovered from a low speed state to that before the malfunction at an abrupt speed.
COPYRIGHT: (C)1991,JPO&Japio
JP1168069A 1989-06-29 1989-06-29 Treating method for malfunction of inverter Pending JPH0336994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1168069A JPH0336994A (en) 1989-06-29 1989-06-29 Treating method for malfunction of inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1168069A JPH0336994A (en) 1989-06-29 1989-06-29 Treating method for malfunction of inverter

Publications (1)

Publication Number Publication Date
JPH0336994A true JPH0336994A (en) 1991-02-18

Family

ID=15861263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1168069A Pending JPH0336994A (en) 1989-06-29 1989-06-29 Treating method for malfunction of inverter

Country Status (1)

Country Link
JP (1) JPH0336994A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009522999A (en) * 2006-06-07 2009-06-11 ジョンソン コントロールズ テクノロジー カンパニー Ride-through method and system for HVAC & R chillers
WO2020044458A1 (en) * 2018-08-29 2020-03-05 東芝三菱電機産業システム株式会社 Electric motor drive device for ship propulsion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009522999A (en) * 2006-06-07 2009-06-11 ジョンソン コントロールズ テクノロジー カンパニー Ride-through method and system for HVAC & R chillers
JP4927865B2 (en) * 2006-06-07 2012-05-09 ジョンソン コントロールズ テクノロジー カンパニー Ride-through method and system for HVAC & R chillers
WO2020044458A1 (en) * 2018-08-29 2020-03-05 東芝三菱電機産業システム株式会社 Electric motor drive device for ship propulsion

Similar Documents

Publication Publication Date Title
JPH03139192A (en) Motor controller
JPH0336994A (en) Treating method for malfunction of inverter
JPS6341307A (en) Choking preventing device for screw conveyor
JPH0270280A (en) Control method for electric motor
JPH0421377A (en) Dynamic brake unit for synchronous motor
JPH04336981A (en) Power tool
JPS6198187A (en) Control circuit for inverter
JPS55105235A (en) Motor drive unit of camera
JPH01190281A (en) Abnormal state detector for electrically-driven motor
JPS63171191A (en) Prevention of inverter device against overvoltage
JPS6481619A (en) Inverter device
JPH04271288A (en) Control method for inverter group
JPH0315297A (en) Inverter controlling circuit
JPS5574387A (en) Generation-braking device for induction motor
JPS6369061A (en) Braking system for disk rotation driving device
JPS5445741A (en) Control system of inverter
JPH03128688A (en) Controller for motor
JPH04312373A (en) Inverter
JPS5947901A (en) Controlling method for electric rolling stock
JPS61293199A (en) Operating system for inverter
JPS63253894A (en) Controller for motor
JPS5480506A (en) Controller for commutatorless motor
JPS5523772A (en) Controller for dc motor
JPH02262893A (en) Stall preventing device for motor driving inverter
JPS62277005A (en) Chopper controller for electric rolling stock