JPS6486080A - Method and apparatus for diagnosing abnormality of current detector - Google Patents
Method and apparatus for diagnosing abnormality of current detectorInfo
- Publication number
- JPS6486080A JPS6486080A JP24250987A JP24250987A JPS6486080A JP S6486080 A JPS6486080 A JP S6486080A JP 24250987 A JP24250987 A JP 24250987A JP 24250987 A JP24250987 A JP 24250987A JP S6486080 A JPS6486080 A JP S6486080A
- Authority
- JP
- Japan
- Prior art keywords
- current
- current detector
- response speed
- value
- lower limit
- 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
- Measurement Of Current Or Voltage (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
PURPOSE:To easily discriminate whether abnormality is generated in a current detector or in a control system, by calculating a current response speed value from the ratios of the present and previous measured values of the output of the current detector with a rated current value and judging the abnormality of the current detector when said ratios exceed upper and lower limit values. CONSTITUTION:The current signal (i) outputted from an insulation type amplifier 6 is sampled at a unit time cycle by a sampling means 71 to be stored. Then, the difference between the present measured value (in) and the previous measured value (in-1) is operated by the first operation means 72. Next, the ratio of said difference and the rated current value iC of a manual setting device 8 is operated by the second operation means 73 to hourly calculate a current response speed. This current response speed is compared with the upper and lower limit values in a normal range and, when it is judged that said response speed exceeds the upper and lower limit values, it is judged that a current detector 5 is abnormal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24250987A JPS6486080A (en) | 1987-09-29 | 1987-09-29 | Method and apparatus for diagnosing abnormality of current detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24250987A JPS6486080A (en) | 1987-09-29 | 1987-09-29 | Method and apparatus for diagnosing abnormality of current detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486080A true JPS6486080A (en) | 1989-03-30 |
Family
ID=17090160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24250987A Pending JPS6486080A (en) | 1987-09-29 | 1987-09-29 | Method and apparatus for diagnosing abnormality of current detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486080A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07244079A (en) * | 1994-02-17 | 1995-09-19 | Fluke Corp | Glitch trigger circuit |
JP2009193122A (en) * | 2008-02-12 | 2009-08-27 | Denso Corp | Abnormal current detection circuit |
EP2177324A1 (en) | 2004-08-02 | 2010-04-21 | Honda Motor Co., Ltd. | Gait generating system and control device of legged mobile robot |
-
1987
- 1987-09-29 JP JP24250987A patent/JPS6486080A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07244079A (en) * | 1994-02-17 | 1995-09-19 | Fluke Corp | Glitch trigger circuit |
EP2177324A1 (en) | 2004-08-02 | 2010-04-21 | Honda Motor Co., Ltd. | Gait generating system and control device of legged mobile robot |
JP2009193122A (en) * | 2008-02-12 | 2009-08-27 | Denso Corp | Abnormal current detection circuit |
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