JPS6438667A - Method for detecting erroneous wiring/disconnection of pg - Google Patents
Method for detecting erroneous wiring/disconnection of pgInfo
- 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
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.
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) |
-
1987
- 1987-08-03 JP JP62192736A patent/JPS6438667A/en active Pending
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