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CN-113720293-B - Non/once rotatable reset selective angle detector and detection method thereof

CN113720293BCN 113720293 BCN113720293 BCN 113720293BCN-113720293-B

Abstract

The invention aims to prevent a magnetic pole of an angle detector from being deviated from a magnetic pole of a motor, thereby improving the reliability of the angle detector. The non-rotatable/resettable angle detector and the detection method thereof are configured to input a serial signal (2) from an external device (6) to a ROM (3) and a strobe circuit (4), and to input a ROM output (3 a) from the ROM (3) to the strobe circuit (4), and to send a final signal (4A) composed of non-implementation (0)/implementation (1) reset from the strobe circuit (4) to a one-rotation reset action circuit (4A), wherein the serial signal (2) is configured to include the non-rotatable/resettable signal (6A) and a reset signal (6B), and to enable selection of non-rotatable/one-rotation reset of the angle detector (1) from the external device (6).

Inventors

  • Dihara Zhihong

Assignees

  • 多摩川精机株式会社

Dates

Publication Date
20260512
Application Date
20201202
Priority Date
20200526

Claims (12)

  1. 1. An un-rotatable reset selective angle detector provided with a serial signal determination circuit (2A), a ROM (3), a strobe circuit (4), and a one-rotation reset operation circuit (4A) configured to input a serial signal (2) from an external device (6) to the strobe circuit (4) through the serial signal determination circuit (2A), and input a ROM output (3 a) representing un-resettable from the ROM (3) to the strobe circuit (4), and to send a final signal (4A) including no 0/embodiment 1 reset from the strobe circuit (4) to the one-rotation reset operation circuit (4A) connected to a subsequent stage of the strobe circuit (4), characterized by comprising: The serial signal (2) comprises a non/resettable signal (6A) and a reset signal (6B) and enables a selection of a non/one-time rotational reset of the angle detector (1) from the external device (6), The non/resettable signal (6A) and the reset signal (6B) are input to the serial signal judgment circuit (2A), An un-resettable signal determination result (2 Ad) from the serial signal determination circuit (2A) to which the un-resettable signal (6A) is input to the ROM (3), and a reset signal determination result (2 Aa) from the serial signal determination circuit (2A) to which the reset signal (6B) is input to the strobe circuit (4).
  2. 2. An un-rotatable reset selective angle detector provided with a serial signal determination circuit (2A), a ROM (3), a strobe circuit (4), and a one-rotation reset operation circuit (4A) configured to input a serial signal (2) from an external device (6) to the strobe circuit (4) through the serial signal determination circuit (2A), and input a ROM output (3 a) representing un-resettable from the ROM (3) to the strobe circuit (4), and to send a final signal (4A) including no 0/embodiment 1 reset from the strobe circuit (4) to the one-rotation reset operation circuit (4A) connected to a subsequent stage of the strobe circuit (4), characterized by comprising: The serial signal (2) comprises a non/resettable signal (6A) and a reset signal (6B) and enables a selection of a non/one-time rotational reset of the angle detector (1) from the external device (6), The serial signal determination circuit (2A) includes a pair of first and second serial signal determination circuits (2A ' ) independent of each other, the non-resettable signal (6A) is input to the first serial signal determination circuit (2A '), the reset signal (6B) is input to the second serial signal determination circuit (2A '), A first non-resettable signal determination result (2 Ab) from the first serial signal determination circuit (2A ') to which the non-resettable signal (6A) is input to the ROM (3), and a second reset signal determination result (2 Ac) from the second serial signal determination circuit (2A') to which the reset signal (6B) is input to the strobe circuit (4).
  3. 3. The non-rotatable/one-time-resettable selective angle detector according to claim 1 or 2, wherein the angle detector is configured to: -transmitting a command of the non/resettable signal (6A) to the ROM (3) via the serial signal decision circuit (2A) by means of the serial signal (2), -writing non-resettable to the ROM (3) upon transmission of the non-resettable signal, -writing resettable upon transmission of the resettable signal, -transmitting a final signal (4 a) comprising 0 for not implementing a reset from the gating circuit (4) if the ROM (3) is non-resettable upon transmission of the command of the reset signal via the serial signal (2), -transmitting a final signal (4 a) comprising 1 for implementing a reset from the gating circuit (4) if the ROM (3) is resettable.
  4. 4. The non-rotatable/one-time-resettable selective angle detector according to claim 1 or 2, wherein the angle detector is configured to: The ROM state of the ROM (3) is resettable when the external device (6) having the angle detector (1) and motor (5) is delivered to a customer, is reset when the angle detector (1) is aligned with the motor (5), is reset when a reset command is sent by the serial signal (2), is then automatically switched to non-resettable, and is then rewritten to re-resettable by sending a command to release the reset by the serial signal (2) when the reset is to be performed.
  5. 5. The non-rotatable/once-rotatable reset selective angle detector of claim 1, configured to: With respect to the ROM (3), instead of inputting the non-resettable signal (6A) to the serial signal determination circuit (2A), non-resettable can be directly written to the ROM (3) from the outside.
  6. 6. The non-rotatable/rotatable reset selective angle detector of claim 2, wherein, A first non/resettable signal determination result (2 Ab) from the first serial signal determination circuit (2A ') is sent to the ROM (3) via a separate other signal line (2 AE) connected to the first serial signal determination circuit (2A').
  7. 7. A detection method of a non-rotatable/rotatable reset selective angle detector is characterized in that, The non-rotatable/resettable angle detector is provided with a serial signal determination circuit (2A), a ROM (3), a strobe circuit (4), and a one-rotation reset operation circuit (4A), and is configured such that a serial signal (2) from an external device (6) is input to the strobe circuit (4) through the serial signal determination circuit (2A), and a ROM output (3 a) representing non-resettable from the ROM (3) is input to the strobe circuit (4), a final signal (4A) including a non-0/1 reset is sent from the strobe circuit (4) to the one-rotation reset operation circuit (4A) connected to a subsequent stage of the strobe circuit (4), The serial signal (2) comprises a non/resettable signal (6A) and a reset signal (6B) and enables a selection of a non/one-time rotational reset of the angle detector (1) from the external device (6), The non/resettable signal (6A) and the reset signal (6B) are input to the serial signal judgment circuit (2A), An un-resettable signal determination result (2 Ad) from the serial signal determination circuit (2A) to which the un-resettable signal (6A) is input to the ROM (3), and a reset signal determination result (2 Aa) from the serial signal determination circuit (2A) to which the reset signal (6B) is input to the strobe circuit (4).
  8. 8. A detection method of a non-rotatable/rotatable reset selective angle detector is characterized in that, The non-rotatable/resettable angle detector is provided with a serial signal determination circuit (2A), a ROM (3), a strobe circuit (4), and a one-rotation reset operation circuit (4A), and is configured such that a serial signal (2) from an external device (6) is input to the strobe circuit (4) through the serial signal determination circuit (2A), and a ROM output (3 a) representing non-resettable from the ROM (3) is input to the strobe circuit (4), a final signal (4A) including a non-0/1 reset is sent from the strobe circuit (4) to the one-rotation reset operation circuit (4A) connected to a subsequent stage of the strobe circuit (4), The serial signal (2) comprises a non/resettable signal (6A) and a reset signal (6B) and enables a selection of a non/one-time rotational reset of the angle detector (1) from the external device (6), The serial signal determination circuit (2A) includes a pair of first and second serial signal determination circuits (2A ' ) independent of each other, the non-resettable signal (6A) is input to the first serial signal determination circuit (2A '), the reset signal (6B) is input to the second serial signal determination circuit (2A '), A first non-resettable signal determination result (2 Ab) from the first serial signal determination circuit (2A ') to which the non-resettable signal (6A) is input to the ROM (3), and a second reset signal determination result (2 Ac) from the second serial signal determination circuit (2A') to which the reset signal (6B) is input to the strobe circuit (4).
  9. 9. The detection method of the non-rotatable/once-resettable selective angle detector according to claim 7 or 8, wherein, -Transmitting a command of the non/resettable signal (6A) to the ROM (3) via the serial signal decision circuit (2A) by means of the serial signal (2), -writing non-resettable to the ROM (3) upon transmission of the non-resettable signal, -writing resettable upon transmission of the resettable signal, -transmitting a final signal (4 a) comprising 0 for not implementing a reset from the gating circuit (4) if the ROM (3) is non-resettable upon transmission of the command of the reset signal via the serial signal (2), -transmitting a final signal (4 a) comprising 1 for implementing a reset from the gating circuit (4) if the ROM (3) is resettable.
  10. 10. The detection method of the non-rotatable/once-resettable selective angle detector according to claim 7 or 8, wherein, In order to be resettable when the external device (6) having the angle detector (1) and the motor (5) is delivered to a customer, when the angle detector (1) is attached to the motor (5), the magnetic pole alignment is aligned, when a reset command is transmitted by the serial signal (2), the ROM state is automatically switched to non-resettable after resetting, and then, when resetting is desired, a command for releasing the reset is transmitted by the serial signal (2), and the ROM (3) is rewritten to be resettable again.
  11. 11. The method for detecting a non-rotatable/rotatable reset selective angle detector according to claim 7, wherein, With respect to the ROM (3), instead of inputting the non-resettable signal (6A) to the serial signal determination circuit (2A), non-resettable can be written directly to the ROM from the outside.
  12. 12. The method for detecting a non-rotatable/rotatable reset selective angle detector according to claim 8, wherein, A first non/resettable signal determination result (2 Ab) from the first serial signal determination circuit (2A ') is sent to the ROM (3) through a separate other signal line (2 AE) connected to the first serial signal determination circuit (2A').

Description

Non/once rotatable reset selective angle detector and detection method thereof Technical Field The present invention relates to an angle detector of non-resettable/one-time-rotation-resettable type and a detection method thereof, and more particularly, to a new improvement for providing a non-resettable/one-time-rotation-resettable selection for an angle detector by serial communication. Background Conventionally, as a reset method of such rotation data used, for example, patent documents 1 and 2 are cited, but these are not the same as the present application, and in patent document 1, absolute data is recorded in a memory, and when power is turned on, subtraction is performed using the absolute data to determine a zero position. Further, in patent document 2, the magnetic pole position of the AC servomotor can be detected without using a three-phase pulse signal, and the encoder reading value is directly used as the system-side absolute position. In the reset method and the magnetic pole position detection method disclosed in patent documents 1 and 2, the circuit configuration is complex, and thus a reset method with a simplified circuit configuration is desired. Further, although not disclosed in patent literature or the like, in a generally employed non-rotatable/resettable selective angle detector, it is not possible to select non-resettable/resettable operation on the part of a customer, that is, on the side of an external device including an automatic processing machine, an injection molding machine, or the like, which is installed for delivery at a factory, but to maintain a fixed state of the initial setting. That is, in the case where resettable information is written to the ROM, the angle detector is necessarily reset when a reset signal is received. In addition, in the case where non-resettable is written to the ROM, a reset signal is not sent to the angle detector but disregarded. Therefore, there is a case where the reset is performed even at a timing when one rotation reset of the encoder is not required due to an erroneous operation or an erroneous operation occurring during the motor operation, and a magnetic pole offset from the motor may occur. Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 2000-258189 Patent document 2 Japanese patent laid-open No. 4-305118 Disclosure of Invention Problems to be solved by the invention The present invention has been made to solve the above-described problems, and particularly, it is possible to select whether to accept a reset signal or disregard the reset signal by a simple ASIC circuit configuration using a serial signal. Solution for solving the problem In the non-rotatable/once-resettable angle detector and the detection method thereof according to the present invention, when a serial signal from an external device is inputted to a gate circuit through a serial signal judgment circuit and a ROM output from ROM is inputted to the gate circuit, a final signal including a non-implementation (0)/implementation (1) reset is sent from the gate circuit to the non-rotatable/once-resettable angle detector connected to a subsequent stage of the gate circuit, the serial signal includes a non-resettable signal and a reset signal, and a non-rotatable reset selection of the angle detector can be made from the external device, and in addition, the present invention is constituted and a method in which a non-resettable command is sent to the ROM by the serial signal, when the non-resettable command is sent, the non-resettable command is written to the ROM, when the command including a non-implementation (0)/implementation (1) reset is sent to the ROM, when the reset command is sent by the serial signal, when the non-resettable command is sent to the ROM, and when the non-resettable command is sent to the ROM, the non-implementation (1) reset command is sent to the ROM, and the non-resettable command is sent to the ROM, when the non-resettable command is sent to the ROM, and the motor is sent by the non-resettable command is sent to the ROM, the present invention is a configuration and a method for writing the ROM directly from the outside, wherein the serial signal judging circuit (2A) includes a pair of mutually independent first and second serial signal judging circuits, a first reset signal judging result from the first serial signal judging circuit to which the non/resettable signal is input to the ROM, and a second reset signal judging result from the second serial signal judging circuit to which the reset signal is input to the strobe circuit, and a configuration and a method for transmitting the first reset signal judging result from the first serial signal judging circuit to the ROM through an independent other signal line connected to the first serial signal judging circuit. Effects of the invention The non-rotatable/rotatable reset selective angle detector and the detection method thereof according to the present inv