JPS6438667A - Method for detecting erroneous wiring/disconnection of pg - Google Patents

Method for detecting erroneous wiring/disconnection of pg

Info

Publication number
JPS6438667A
JPS6438667A JP62192736A JP19273687A JPS6438667A JP S6438667 A JPS6438667 A JP S6438667A JP 62192736 A JP62192736 A JP 62192736A JP 19273687 A JP19273687 A JP 19273687A JP S6438667 A JPS6438667 A JP S6438667A
Authority
JP
Japan
Prior art keywords
disconnection
output signals
circuit
exclusive
counter
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
JP62192736A
Other languages
Japanese (ja)
Inventor
Kouichi Tsukahata
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 JP62192736A priority Critical patent/JPS6438667A/en
Publication of JPS6438667A publication Critical patent/JPS6438667A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE:To prevent the reckless driving of a motor by detecting the erroneous wiring/disconnection of a pulse generator (PG) immediately after a power source is closed, by sending out a signal discriminating each phase from the PG when the power source is closed to process the same on a receiving side. CONSTITUTION:This detection circuit is constituted of an exclusive OR circuit 1 taking the exclusive OR of the output signals A, B from a PG, an exclusive OR circuit 2 taking the exclusive OR of output signals B, C, rising differentiating circuits 3, 4 detecting the rising of the output signals (a), (b) of the circuits 1, 2, an OR circuit 5 taking the OR of the output signals (c), (d) of the circuits 3, 4 and a counter 6 counting the output signal (e) of the circuit 5. When there is no erroneous wiring or disconnection in the PG, the output signals A, B, C from the PG changes in accurate order and the value of the counter 6 becomes 4. However, in other case, the value of the counter 6 is 3 and does not become 4. Therefore, by looking the value of the counter 6, the erroneous wiring and disconnection of the PG can be detected.
JP62192736A 1987-08-03 1987-08-03 Method for detecting erroneous wiring/disconnection of pg Pending JPS6438667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62192736A JPS6438667A (en) 1987-08-03 1987-08-03 Method for detecting erroneous wiring/disconnection of pg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62192736A JPS6438667A (en) 1987-08-03 1987-08-03 Method for detecting erroneous wiring/disconnection of pg

Publications (1)

Publication Number Publication Date
JPS6438667A true JPS6438667A (en) 1989-02-08

Family

ID=16296208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62192736A Pending JPS6438667A (en) 1987-08-03 1987-08-03 Method for detecting erroneous wiring/disconnection of pg

Country Status (1)

Country Link
JP (1) JPS6438667A (en)

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