JPH04251587A - Failure detecting method for motor control circuit - Google Patents

Failure detecting method for motor control circuit

Info

Publication number
JPH04251587A
JPH04251587A JP3012845A JP1284591A JPH04251587A JP H04251587 A JPH04251587 A JP H04251587A JP 3012845 A JP3012845 A JP 3012845A JP 1284591 A JP1284591 A JP 1284591A JP H04251587 A JPH04251587 A JP H04251587A
Authority
JP
Japan
Prior art keywords
control circuit
motor control
motor
failure detecting
current
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
JP3012845A
Other languages
Japanese (ja)
Inventor
Teruaki Tanaka
Original Assignee
Teijin Seiki 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 Teijin Seiki Co Ltd filed Critical Teijin Seiki Co Ltd
Priority to JP3012845A priority Critical patent/JPH04251587A/en
Publication of JPH04251587A publication Critical patent/JPH04251587A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To discriminate abnormal increase of motor current due to increase of motor load from that due to failure in a motor control circuit.
CONSTITUTION: When the value of motor current detected through a resistor 18 exceeds a predetermined level, a pulse signal for reducing the motor current is superposed on a control output from a CPU 11a. If the detected current does not decrease in accordance with the pulse signal, it means failue in a motor control circuit.
COPYRIGHT: (C)1992,JPO&Japio
JP3012845A 1991-01-08 1991-01-08 Failure detecting method for motor control circuit Pending JPH04251587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3012845A JPH04251587A (en) 1991-01-08 1991-01-08 Failure detecting method for motor control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3012845A JPH04251587A (en) 1991-01-08 1991-01-08 Failure detecting method for motor control circuit

Publications (1)

Publication Number Publication Date
JPH04251587A true JPH04251587A (en) 1992-09-07

Family

ID=11816731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3012845A Pending JPH04251587A (en) 1991-01-08 1991-01-08 Failure detecting method for motor control circuit

Country Status (1)

Country Link
JP (1) JPH04251587A (en)

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