JPS55156874A - Fault checking circuit for tachometer generator of speed controller - Google Patents
Fault checking circuit for tachometer generator of speed controllerInfo
- Publication number
- JPS55156874A JPS55156874A JP6401379A JP6401379A JPS55156874A JP S55156874 A JPS55156874 A JP S55156874A JP 6401379 A JP6401379 A JP 6401379A JP 6401379 A JP6401379 A JP 6401379A JP S55156874 A JPS55156874 A JP S55156874A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- tachometer generator
- output
- voltage
- armature
- 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.)
- Granted
Links
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
PURPOSE: To secure the quick countermeasure to the fault of the tachometer generator circuit such as the disconnection and the like, by detecting that the armature voltage or the ratio between the armature voltage and the armature current is more than the fixed value and that no output voltage of the tachometer generator is produced.
CONSTITUTION: Detection circuit 8' delivers the output when the ratio between the armature voltage and the armature current of DC motor 1 is more than the fixed value. Fault detecting circuit 10 decides that the tachometer generator circuit is faulty when the output signal is sent from circuit 8' and also the zero output voltage of tachometer generator 2 is detected by detection circuit 9. The output of circuit 10 is supplied to emergency processing circuit 11.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54064013A JPS608754B2 (en) | 1979-05-25 | 1979-05-25 | Abnormality check circuit for tachometer generator in speed control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54064013A JPS608754B2 (en) | 1979-05-25 | 1979-05-25 | Abnormality check circuit for tachometer generator in speed control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55156874A true JPS55156874A (en) | 1980-12-06 |
JPS608754B2 JPS608754B2 (en) | 1985-03-05 |
Family
ID=13245858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54064013A Expired JPS608754B2 (en) | 1979-05-25 | 1979-05-25 | Abnormality check circuit for tachometer generator in speed control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS608754B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS639364U (en) * | 1986-07-01 | 1988-01-21 |
-
1979
- 1979-05-25 JP JP54064013A patent/JPS608754B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS608754B2 (en) | 1985-03-05 |
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