JPS6474080A - Abnormality detector of regenerative power absorption circuit - Google Patents

Abnormality detector of regenerative power absorption circuit

Info

Publication number
JPS6474080A
JPS6474080A JP22946387A JP22946387A JPS6474080A JP S6474080 A JPS6474080 A JP S6474080A JP 22946387 A JP22946387 A JP 22946387A JP 22946387 A JP22946387 A JP 22946387A JP S6474080 A JPS6474080 A JP S6474080A
Authority
JP
Japan
Prior art keywords
circuit
regenerative power
power absorption
set point
constituted
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
JP22946387A
Other languages
Japanese (ja)
Inventor
Yukio Aizawa
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP22946387A priority Critical patent/JPS6474080A/en
Publication of JPS6474080A publication Critical patent/JPS6474080A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stopping Of Electric Motors (AREA)
  • Protection Of Static Devices (AREA)

Abstract

PURPOSE:To make it most suitable to carry out abnormality treatment by outputting an abnormality detection signal when a continuity state of a regenerative power absorption resistor reaches the time in excess of a set point. CONSTITUTION:An invertor is constituted of a rectifier circuit 2 of 3 phase AC power voltage, a DC power circuit 6 of a smoothing condenser 5 and an invertor main circuit 7, and the specified 3 phase AC power is supplied to a load induction motor 8. And, a state detection circuit 20 constituted of a regenerative power absorption resistor 9, a regenerative power absorption circuit 11 of a switching element (Tr) 10, a regenerative power absorption control circuit 12, a photo coupler 13 and etc., a timer circuit 21, a set point setting 22, an extraordinary stop circuit 23 and an alarm equipment 24 such as a buzzer, etc., are provided. Accordingly, the timer circuit 21 is reset before attaining a set point in case of normal time, but a counting operation of the timer circuit 21 reaches a set point in case of abnormal time and an abnormality detection signal is outputted.
JP22946387A 1987-09-16 1987-09-16 Abnormality detector of regenerative power absorption circuit Pending JPS6474080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22946387A JPS6474080A (en) 1987-09-16 1987-09-16 Abnormality detector of regenerative power absorption circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22946387A JPS6474080A (en) 1987-09-16 1987-09-16 Abnormality detector of regenerative power absorption circuit

Publications (1)

Publication Number Publication Date
JPS6474080A true JPS6474080A (en) 1989-03-20

Family

ID=16892592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22946387A Pending JPS6474080A (en) 1987-09-16 1987-09-16 Abnormality detector of regenerative power absorption circuit

Country Status (1)

Country Link
JP (1) JPS6474080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010233414A (en) * 2009-03-30 2010-10-14 Panasonic Corp Motor control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010233414A (en) * 2009-03-30 2010-10-14 Panasonic Corp Motor control device

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