JPS5682911A - Position control method for electric motor - Google Patents
Position control method for electric motorInfo
- Publication number
- JPS5682911A JPS5682911A JP15949379A JP15949379A JPS5682911A JP S5682911 A JPS5682911 A JP S5682911A JP 15949379 A JP15949379 A JP 15949379A JP 15949379 A JP15949379 A JP 15949379A JP S5682911 A JPS5682911 A JP S5682911A
- Authority
- JP
- Japan
- Prior art keywords
- position control
- polarity
- current
- standards
- relative position
- 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
- Control Of Position Or Direction (AREA)
- Control Of Multiple Motors (AREA)
Abstract
PURPOSE: To obtain a position control method with small relative position deviation even in interlocking operation which requires sudden deceleration, by adjusting one current reference limit value according to the relative position deviation between two position control systems and its polarity.
CONSTITUTION: Position control standards 11 and 31 of the 1st and 2nd position control systems are compared 13 and 33 with position feedback signals respectively to obtain speed standards, which are also compared 18 and 38 with speed feedback signals to obtain current standards; and the current standards are compared 22 and 42 with current feedback signals to find their deviations, according to which speeds of electric motors 25 and 45 are adjusted to exercise position control. If there is a difference in friction torque between motors 25 and 45 right after actuation, a relative position deviation between both the systems is generated and calculated by comparator 51 to detect its polarity by polarity discriminator 53, and according to the polarity, switches S1 and S2 or S4 and S5 are controlled to adjust the limit value of current standard limiter 26 or 46. Thus, the relative position deviation between motors of both the systems can rapidly be reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15949379A JPS5682911A (en) | 1979-12-08 | 1979-12-08 | Position control method for electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15949379A JPS5682911A (en) | 1979-12-08 | 1979-12-08 | Position control method for electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5682911A true JPS5682911A (en) | 1981-07-07 |
Family
ID=15694964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15949379A Pending JPS5682911A (en) | 1979-12-08 | 1979-12-08 | Position control method for electric motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5682911A (en) |
-
1979
- 1979-12-08 JP JP15949379A patent/JPS5682911A/en active Pending
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