阅读说明：本技术 不可/可一次旋转复位选择式角度检测器及其检测方法 (Non-rotatable/once-rotatable reset selective angle detector and detection method thereof ) 是由 荻原知弘 于 2020-12-02 设计创作，主要内容包括：本发明的技术问题在于防止角度检测器与马达的磁极偏移,谋求角度检测器的可靠性的提高。本发明的不可/可一次旋转复位选择式角度检测器及其检测方法是如下的构成和方法：构成为将来自外部装置(6)的串行信号(2)输入至ROM(3)和选通电路(4),并且将来自ROM(3)的ROM输出(3a)输入至选通电路(4),从选通电路(4)将由不实施(0)/实施(1)复位构成的最终信号(4a)发送至一次旋转复位动作电路(4A),其中,设为串行信号(2)包括不可/可复位信号(6A)和复位信号(6B),并且能从外部装置(6)进行角度检测器(1)的不可/可一次旋转复位的选择。(The invention aims to prevent the magnetic pole offset between an angle detector and a motor and improve the reliability of the angle detector. The invention relates to a non-rotatable/once-rotatable reset selective angle detector and a detection method thereof, which comprises the following components and methods: a serial signal (2) from an external device (6) is input to a ROM (3) and a gate circuit (4), a ROM output (3a) from the ROM (3) is input to the gate circuit (4), and a final signal (4A) consisting of non-implementation (0)/implementation (1) of reset is transmitted from the gate circuit (4) to a primary rotational reset operation circuit (4A), wherein the serial signal (2) is set to include a non-resettable signal (6A) and a reset signal (6B), and the non-resettable/once-rotational reset of an angle detector (1) can be selected from the external device (6).)

1. A non-once-rotatable reset selective angle detector configured to input a serial signal (2) from an external device (6) to a gate circuit (4) via a serial signal determination circuit (2A), input a ROM output (3a) from a ROM (3) to the gate circuit (4), and transmit a final signal (4A) including non-execution (0)/execution (1) of reset from the gate circuit (4) to a once-rotatable reset operation circuit (4A) connected to a subsequent stage of the gate circuit (4), the non-once-rotatable reset selective angle detector characterized by being configured to:

the serial signal (2) includes a non-resettable signal (6A) and a reset signal (6B), and selection of non-rotational/once-rotational resetting of the angle detector (1) can be made from the external device (6).

2. The non-rotatable/once-rotatable reset-selectable angle detector according to claim 1, characterized by being configured to:

a non/resettable command is transmitted to the ROM (3) and the gating circuit (4) by the serial signal (2), when the non-resettable command is transmitted, the non-resettable command is written into the ROM (3), when the resettable command is transmitted, the resettable command is written in the resettable condition, when the reset signal command is transmitted by the serial signal (2), if the ROM (3) is non-resettable, the reset is not performed, and if the ROM (3) is resettable, the reset is performed.

3. The non-rotatable/once-rotatable reset-selectable angle detector according to claim 1, characterized by being configured to:

the ROM state of the ROM (3) can be reset when the external device (6) having the angle detector (1) and the motor (5) is delivered to a customer, and when the angle detector (1) is attached to the motor (5) and the magnetic pole alignment is performed, the ROM state is automatically switched to non-resettable when a reset command is transmitted by the serial signal (2), and then when the reset is to be performed, a command for releasing the reset is transmitted by the serial signal (2), and the ROM (3) is rewritten to resettable again.

4. A non-/once-rotatable reset-selective angle detector according to any of claims 1 to 3, characterized by being configured to:

the ROM (3) can be directly written into the ROM (3) from the outside.

5. A non-/once-rotatable reset-selective angle detector according to any of claims 1 to 3, characterized by being configured to:

the serial signal determination circuit (2A) includes a pair of first and second serial signal determination circuits (2A ' ) independent of each other, a first non-resettable signal determination result (2Ab) 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 (2Ac) from the second serial signal determination circuit (2A ') to which the reset signal (6B) is input to the strobe circuit (4).

6. The non-rotatable/once-rotatable reset-selectable angle detector of claim 5,

a first non-resettable signal determination result (2Ab) from the first serial signal determination circuit (2A ') is transmitted to the ROM (3) through a separate other signal line (2AE) connected to the first serial signal determination circuit (2A').

7. A detection method of a non-rotatable/once-rotatable reset selective angle detector is characterized in that,

in a non-rotatable/rotatable-rotatable reset selection type angle detector configured to input a serial signal (2) from an external device (6) to a gate circuit (4) through a serial signal determination circuit (2A), input a ROM output (3a) from a ROM (3) to the gate circuit (4), and transmit a final signal (4A) including no (0)/no (1) reset from the gate circuit (4) to a primary rotation reset operation circuit (4A) connected to a subsequent stage of the gate circuit (4),

the serial signal (2) includes a non-resettable signal (6A) and a reset signal (6B), and selection of non-rotational/once-rotational resetting of the angle detector (1) can be made from the external device (6).

8. The detection method of the non-rotatable/once-rotatable reset-selectable angle detector according to claim 7,

a non/resettable command is transmitted to the ROM (3) and the gating circuit (4) by the serial signal (2), when the non-resettable command is transmitted, the non-resettable command is written into the ROM (3), when the resettable command is transmitted, the resettable command is written in the resettable condition, when the reset signal command is transmitted by the serial signal (2), if the ROM (3) is non-resettable, the reset is not performed, and if the ROM (3) is resettable, the reset is performed.

9. The detection method of the non-rotatable/once-rotatable reset-selectable angle detector according to claim 7,

the ROM state of the ROM (3) is resettable when the external device (6) having the angle detector (1) and the motor (5) is delivered to a customer, is reset when a magnetic pole alignment is performed when the angle detector (1) is attached to the motor (5), and is reset when a reset command is transmitted by the serial signal (2), the ROM state is automatically switched to non-resettable, and when the reset is desired, a reset release command is transmitted by the serial signal (2), and the ROM (3) is rewritten to resettable.

10. The detection method of the non-once-rotatable reset-selective angle detector according to any one of claims 7 to 9,

the ROM (3) can be directly written from the outside.

11. The detection method of the non-rotatable/once-rotatable reset selective angle detector according to any one of claims 7 to 9, characterized by comprising:

the serial signal determination circuit (2A) includes a pair of first and second serial signal determination circuits (2A ' ) independent of each other, a first non-resettable signal determination result (2Ab) 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 (2Ac) from the second serial signal determination circuit (2A ') to which the reset signal (6B) is input to the strobe circuit 4.

12. The detection method of the non-rotatable/once-rotatable reset-selectable angle detector according to claim 11,

a first non-resettable signal determination result (2Ab) from the first serial signal determination circuit (2A ') is sent to the ROM (3) through a separate other signal line (2AE) connected to the first serial signal determination circuit (2A').

Technical Field

The present invention relates to a non-once-rotation-resettable selective angle detector and a detection method thereof, and more particularly, to a new improvement for making it possible to perform non-rotation-resettable selection of an angle detector by serial communication.

Background

Conventionally, as a method of resetting the rotation data, for example, there are configurations of patent documents 1 and 2, but these configurations are not the same as the present application, and in patent document 1, absolute data is recorded in a memory, and when the power is turned on, subtraction is performed using the absolute data to obtain a zero position.

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 read value can be used as the system-side absolute position as it is.

In the reset method and the magnetic pole position detection method disclosed in each of patent documents 1 and 2, the circuit configuration is complicated, and therefore a reset method having a more simplified circuit configuration is desired.

Although not disclosed in patent documents and the like, in a generally employed non-returnable/once-rotatable selective angle detector, the non-resettable/resettable state cannot be selected by a customer, that is, on the side of an external device including an automatic processing machine, an injection molding machine, and the like, which is delivered and installed in a factory, and the fixed state of the initial setting is maintained.

That is, when a resettable write is performed to the ROM, the angle detector is inevitably reset when a reset signal is received.

In addition, when a non-resettable write is made to the ROM, the reset signal is disregarded without being sent to the angle detector.

Therefore, the motor is reset at a timing when the encoder is not required to be reset by one rotation due to an erroneous operation, or the like generated during the operation of the motor, and a magnetic pole deviation from the motor may occur.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2000-258189

Patent document 2: japanese laid-open patent publication 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 in particular, it is possible to select whether to receive a reset signal or disregard the reset signal by a simple ASIC circuit configuration using a serial signal.

Means for solving the problems

The invention relates to a non-rotatable/once-rotatable reset selective angle detector and a detection method thereof, which are composed of the following components: in a non-rotatable/rotatable-once-reset selective angle detector configured to input a serial signal from an external device to a gate circuit via a serial signal determination circuit, input a ROM output from a ROM to the gate circuit, and transmit a final signal including a non-implementation (0)/implementation (1) reset from the gate circuit to a primary rotation reset operation circuit connected to a subsequent stage of the gate circuit, the serial signal includes a non-rotatable/rotatable signal and a reset signal and is capable of selecting the non-rotatable/rotatable reset of the angle detector from the external device; further, the present invention is a composition and a method as described below: transmitting a non-resettable/resettable command to the ROM through the serial signal, writing a non-resettable command to the ROM when the non-resettable command is transmitted, writing the resettable command in the resettable case, and not resetting if the ROM is non-resettable when the reset signal is transmitted through the serial signal, or performing resetting if the ROM is resettable; further, the present invention is a composition and a method as described below: a ROM state of the ROM is resettable when the external device including the angle detector and the motor is delivered to a customer, is reset when a reset command is transmitted by the serial signal when the angle detector is aligned with a magnetic pole when the angle detector is attached to the motor, is automatically switched to non-resettable, and is rewritten to resettable again when a reset is to be performed by transmitting a reset release command by the serial signal; further, the present invention is a composition and a method as described below: for the ROM, the ROM can be directly written from the outside; further, the present invention is a composition and a method as described below: the serial signal determination circuit (2A) includes a pair of first and second serial signal determination circuits independent of each other, a first reset signal determination result from the first serial signal determination circuit to which the non-resettable/resettable signal is input to the ROM, and a second reset signal determination result from the second serial signal determination circuit to which the reset signal is input to the gate circuit; further, the present invention is a composition and a method as described below: the first reset signal determination result from the first serial signal determination circuit is sent to the ROM through a separate other signal line connected to the first serial signal determination circuit.

Effects of the invention

The angle detector of the present invention and the detection method thereof are configured as described above, and therefore, the following effects can be obtained.

That is, by inputting the serial signal from the angle detector to the ROM and the gate circuit and inputting the output signal from the ROM to the gate circuit, a final signal that is not resettable or resettable can be obtained from the gate circuit, and therefore, a magnetic pole offset from the motor due to resetting performed at an unnecessary timing can be prevented. Therefore, the magnetic pole offset (which has occurred conventionally) of the motor and the angle detector including the encoder and the like can be prevented.

Further, since the user can select the non-resettable/resettable state, the reliability of the angle detector provided in the motor can be improved. That is, it is possible to select whether to receive a reset signal or to ignore it by serial communication, which is an effective means for preventing the encoder data from being misaligned by an unintentional one-time rotational reset during the operation of the external device, and it is possible to improve the reliability of the encoder.

Drawings

Fig. 1 is a circuit diagram schematically showing a reset circuit of a non-rotatable/rotatable reset selectable angle detector according to an embodiment of the present invention.

Fig. 2 is a circuit diagram showing the methods (a) and (B) of writing to the ROM of fig. 1.

Fig. 3 is a table showing the reset signal, disable/unset (possible) reset, and not-implement (disable)/implement (possible) reset logic of fig. 1.

Description of reference numerals:

1 … … angle detector;

a 1B … … angle signal output section;

1C … … angle signal;

2 … … serial signals;

3……ROM；

3a … … ROM output;

4 … … gating circuit;

4a … … final signal;

4A … … one-time rotation reset action circuit;

5 … … a motor;

6 … … external devices;

6A … … non/resettable signal;

6B … … reset signal;

2a … … serial signal decision circuit;

2A' … … first serial signal decision circuit;

2A ″ … … second serial signal determination circuit;

2Aa … … reset signal determination result;

2AE … … other signal lines;

2Ab … … first non/resettable signal determination result;

2Ac … … second reset signal decision result;

2Ad … … non/resettable signal decision result;

10 … … write input;

the 1a … … ASIC constitutes a reset circuit.

Detailed Description

The non-rotation/once-rotation reset selective angle detector and the method can particularly perform non-resettable selection for the angle detector through a serial signal from an external device.

[ examples ]

Hereinafter, preferred embodiments of the non-rotatable/once-rotatable reset selectable angle detector and the detection method thereof according to the present invention will be described with reference to the drawings.

Fig. 1 is a schematic reset circuit of a non-rotatable/rotatable reset selectable angle detector according to an embodiment of the present invention, fig. 2 (a) and 2 (B) are circuit diagrams showing a method of writing to the ROM of fig. 1, and fig. 3 is a table showing the logic of fig. 1.

In fig. 1, reference numeral 1 denotes a part of an angle detector including an encoder, a resolver, and the like, and the angle detector 1 is provided with: ROM3 to which serial signal 2 is input via serial signal determination circuit 2A; and a gate circuit 4 to which a ROM output 3a from the ROM3 is input. The serial signal 2 is also directly input to the gating circuit 4.

The serial signal 2 is transmitted from an external device 6 that controls a motor 5 to which the angle detector 1 is integrally attached. The above case is a case where the operator who operates the external device 6 operates to transmit the serial signal 2.

The external device 6 includes, for example, an automatic processing machine or an injection molding machine delivered to a customer from the present applicant or another third party.

The motor 5 is sometimes provided with the angle detector 1 in an attached form inside an external device 6.

The serial signal 2 is configured to: the non-resettable/resettable signal 6A can be automatically or manually transmitted from the external device 6 to the serial signal determination circuit 2A, and can be input to the ROM3 in accordance with the result of determination by the serial signal determination circuit 2A.

The serial signal 2 includes a non/releasable reset signal 6A and a reset signal 6B.

The ROM3 is configured to: write-impossible (0)/possible (1) reset is possible. In order to confirm the state of the ROM3, i.e., the storage state, the storage content is read as indicated by the arrow of the broken line.

The gate circuit 4 is configured to: the final signal 4A is outputted [ not to perform (0)/to perform (1) reset ], and the final signal 4A is transmitted to the angle signal output section 1B through the one-rotation reset operation circuit 4A, which is an effective method for preventing the encoder data from being misaligned, and can prevent the magnetic pole from being misaligned with the motor 5. The angle signal output unit 1B is configured to output an angle signal 1C.

That is, in the above configuration, the serial signal 2 from the external device 6 is input to the ROM3 and the gate circuit 4, the ROM output 3a from the ROM3 is input to the gate circuit 4, the final signal 4A including the non-execution (0)/execution (1) reset is transmitted from the gate circuit 4 to the angle signal output section 1B via the one-time rotational reset operation circuit 4A, and the angle signal 1C is output, and the serial signal 2 includes the non-resettable signal 6A and the reset signal 6B, and the one-time rotational reset of the angle detector 1 can be performed from the external device 6 using the serial signal 2.

Further, a non-resettable/resettable command is transmitted to the ROM3 and the gate circuit 4 by the serial signal 2, a non-resettable is written to the ROM3 when the non-resettable command is transmitted, the resettable command is written when the resettable command is transmitted, the non-resettable command is not reset if the ROM3 is non-resettable when the reset signal command is transmitted by the serial signal 2, and the reset command is set to be reset if the ROM3 is resettable.

Further, the ROM3 is resettable when the external device 6 including the angle detector 1 and the motor 5 is delivered to a customer, is reset when a reset command is transmitted by the serial signal 2 when the angle detector 1 is attached to the motor 5 and the magnetic pole is aligned, and is automatically switched to be non-resettable, and when a reset is desired, a command for releasing the reset is transmitted by the serial signal 2, and the ROM3 is rewritable to be resettable again.

In the angle detector 1, the serial signal determination circuit 2A, the gate circuit 4, the one-time rotation reset operation circuit 4A, and the angle signal output section 1B, which are indicated by solid lines in fig. 1, are formed of ASICs (Application Specific ICs), and an ASIC structure processing circuit 1A, which is indicated by broken lines in fig. 1, and a ROM3, which is independent of the ASIC structure processing circuit 1A, are provided.

Next, the operation of the non-rotatable/rotatable reset selectable angle detector according to the present invention will be described. By the serial signal 2, a command of non-/unsettable (release) is sent to the ROM3 via the serial signal determination circuit 2A.

In this case, when the non-resettable signal 6A is transmitted, a non-implementable (non-implementable) reset "0" is written to the ROM 3.

Further, in the case of releasing (resettable), the writing can be reset.

Further, when the reset signal 6B is transmitted by the serial signal 2, if the ROM3 is not resettable, it is not reset. Further, if the ROM3 is resettable, a reset is implemented.

In addition, when the external device 6 provided with the angle detector 1 in the motor 5 is delivered to a customer, the state of the ROM3 is a resettable state, and the state of the ROM3 is automatically switched to a non-resettable state so that the external device is reset when a reset command is transmitted by the serial signal 2 during pole alignment when the angle detector 1 is attached to the motor 5.

When a reset is to be performed, it is necessary to transmit a resettable command via the serial signal 2 and rewrite the ROM3 so that it can be reset again.

By performing the above operation, the alignment with the magnetic poles of the motor 5 is performed, and as a result, the magnetic pole misalignment can be prevented.

Note that writing to the ROM3 will be described additionally. That is, as shown in fig. 2A, only the reset signal 6B is input to the serial signal determination circuit 2A, and the ROM3 is input with the write input 10 input by direct write input, instead of the non-resettable signal determination result (non-0/possible 1)2Ad from the serial signal determination circuit 2A input to the ROM 3. That is, the ROM3 is written without going through the ASIC configuration reset circuit 1A.

In fig. 2 (B), a pair of first and second serial signal determination circuits 2A ', 2A "are provided independently, and the first and second non-resettable signals 6A are input to the first serial signal determination circuit 2A ', and the first non-resettable signal determination result 2Ab is directly transmitted to the ROM3 via an independent other signal line 2AE connected to the first serial signal determination circuit 2A ', and the ROM output 3a is input to the gate circuit 4. The reset signal 6B is input to the second serial signal determination circuit 2A ″ and the second determination result 2Ac is input to the gate circuit 4.

Further, as shown in fig. 3, there are shown: since the non-resettable state of the ROM3 is 0, 1, and the reset signal is 0, 1, the reset/non-reset state is 0, 1, and the reset operation is performed only in the fourth group state.

Industrial applicability

In the angle detector of non-once-rotation-resettable selection type and the detection method thereof according to the present invention, a serial signal from an external device using a motor with an angle detector is input to a ROM and a gate circuit, and a final signal 4a which can be reset or not reset is obtained from the gate circuit, thereby preventing a magnetic pole offset from the motor which has conventionally occurred.