JPH11150985A - Motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a wiring work and reduce the installation cost by simplifying apparatus constitution necessary for the outside. SOLUTION: In a motor the following are built in; a motor driving part 12 for applying rotation torque to a rotation shaft 11a, a switching unit 13 for supplying the output from an external power source 16 to the motor driving part 12, a microprocessor 17 which selectively outputs an ON command signal and an OFF command signal to the switching unit 13, a measuring means 18 for measuring a load current and a ground current which flow in the motor driving part 12, a storage device 21 for storing measurement information by the measuring means 18 and the information necessary for forming various kinds of command signals in the microprocessor 17, and a communication equipment 22 for sending and receiving signals between the motor and the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor in which various means related to motor control are provided.

[0002]

FIG. 14 shows an example of a basic configuration for controlling the start and stop of the motor. In the example of FIG. 14, the control panel 1 includes an electromagnetic contactor 2 and a PLC (Progra) for opening and closing the electromagnetic contactor 2.
A monitoring control device 4 including a mmable logic controller) or a switch 3 and a monitor is provided, and the power supply 5 selectively supplies power to the motor 6 by the electromagnetic contactor 2.

However, in the conventional configuration, the motor 6
In order to operate the system, not only the electromagnetic contactor 2 and the PLC or the switch 3 must be prepared, but also the monitoring and control equipment 4 must be built in, and as a result, the equipment configuration in the control panel 1 becomes complicated. There was a problem of doing. In addition, when the motor 6 is installed, there is a problem in that wiring work for the electromagnetic contactor 2 and the monitoring and control device 4 becomes troublesome, and the installation cost increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an intelligent device capable of simplifying a wiring operation and reducing installation costs by simplifying a necessary external device configuration. To provide a simple motor.

[0005]

According to a first aspect of the present invention, there is provided a control unit for supplying an external power supply output to an electric unit, a command unit for supplying a command signal to the control unit, and A measuring unit for measuring a load current or the like flowing through the electric unit, a storage unit for storing information necessary for generating a command signal or the like in the command unit, measurement information by the measuring unit, and the like, Incorporating an input / output means for performing input / output processing of information, the command means is provided to the control means based on input information from outside, measurement information by the measurement means, storage information of the storage means, and the like. The operation of the electric unit is controlled by giving a command.

[0006] According to the motor of this configuration, it is possible to perform the cut-off control of the electric unit, that is, the operation and stop control of the motor through the command means only by giving the operation or stop information from the outside via the input / output means. Will be possible. Furthermore, in the command means, the state in which the load current flowing to the electric unit has become an abnormal value can be determined by the measurement information by the measurement means, so that the overcurrent protection operation can be performed without externally providing stop information. This makes it possible to prevent a failure due to an overload from occurring.

Accordingly, there is no need to provide an electromagnetic contactor or a monitoring and control device outside the motor, so that the configuration of the external device can be simplified. As a result, the wiring work is simplified and the installation cost associated therewith is reduced. Can be reduced.

[0008] In this case, as described in claim 2, control is performed by the command means to output information indicating the operating state of the electric unit or measurement information by the measurement means to the outside through the input / output means. In this case, the operating state of the motor can be observed from the outside, and maintenance and monitoring thereof can be easily performed.

According to a third aspect of the present invention, there is provided a control means for supplying an external power supply output to the motor unit, a command means for supplying a command signal to the control means, and a command signal generated by the command means. Incorporating storage means for storing information necessary for the information processing, and input / output means for performing input / output processing of information with the outside, the command means is used for inputting information from outside and storing the storage means. In the case where the operation of the electric unit is controlled by giving a command to the control unit based on stored information or the like, the operation or stop information of the motor is also given only by giving the operation or stop information via the input / output unit. Stop control can be performed. Therefore, there is no need to provide an electromagnetic contactor or the like outside the motor, and the external device configuration can be sufficiently simplified.
As a result, simplification of the wiring work and reduction of the installation cost associated therewith can be realized.

In this case, in a case where the command means controls the output of information indicating the operation state of the electric unit to the outside through the input / output means, the operation of the motor is controlled. The state and the like can be observed from the outside.

According to a fifth aspect of the present invention, there is provided a measuring means for measuring a load current or the like flowing through an electric motor, a command means for receiving information measured by the measuring means, and a memory for storing information measured by the measuring means. After incorporating a storage unit and an input / output unit that performs input / output processing of information between the outside and the outside, the command unit is configured to execute measurement information of the measurement unit and the storage unit based on input information from outside. In the case where control is performed to output stored information or the like to the outside through the input / output means, information such as a load current flowing to the motorized section is output to the outside. Wiring work becomes easy. In addition, maintenance and monitoring can be easily performed.

When the information input means for externally inputting information is integrally provided as in the invention according to claim 6, it is not necessary to newly provide a switch device or the like externally. In addition, wiring workability can be further improved.

In this case, as in the invention according to claim 7,
In the case where the information input means is provided detachably, it is possible to obtain an effect that a flexible device arrangement is possible and maintenance of the information input means is facilitated.

When the monitor means for displaying the information output to the outside through the input / output means is integrally provided as in the invention according to claim 8, it is necessary to newly provide the monitor means to the outside. Is eliminated, and wiring workability can be further improved.

In this case, as in the ninth aspect of the present invention,
In the case where the above-mentioned monitor means is detachably provided, an effect is obtained that the equipment can be flexibly arranged and the maintenance of the monitor means becomes easy.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows an electrical basic configuration of the motor 11 by a combination of functional blocks. In FIG. 1, the motor 11
Is a motorized unit 1 for applying a rotating torque to the rotating shaft 11a.
In addition to the above, each of the units described below is built in.

The switching unit 13 as a control means includes a relay 14 and an electromagnetic contactor 15 whose opening and closing are controlled in accordance with the on / off state of the relay 14. The electromagnetic contactor 15 is closed in its closed state. The output from the external power supply 16 is supplied to the electric unit 12.

Microprocessor 17 as command means
Is configured to selectively output an ON command signal for commanding the ON operation and an OFF command signal for commanding the OFF operation to the relay 14 in the opening / closing unit 13.

The measuring means 18 is a current transformer (CT) for measuring a load current flowing through the electric motor 12 through the electromagnetic contactor 15.
19 and a zero-phase current transformer (Z
CT) 20 to provide the measurement information and the detection information to the microprocessor 17.

The memory device 21 as a storage means is constructed using a rewritable nonvolatile memory element such as an EEPROM or a volatile memory element such as a RAM, and is provided through a microprocessor 17. The microprocessor 17 is provided to store measurement information and detection information by the measurement unit 18, information necessary for the microprocessor 17 to generate various command signals, and the like.

The communication device 22 as input / output means sends external information such as the operation or stop of the motor 11 to the microprocessor 17 or the operation state of the motor 11 (the electric unit 12) and the load current value. It is provided for sending measurement information (information stored in the memory device 21) to the outside.

With such a configuration, the microprocessor 17 selectively outputs an ON command signal or an OFF command signal to the relay 14 only by sending operation information from the outside to the communication device 22, and operates the motor 11. And stop control (power supply and stop control to the electric unit 12)
Can be performed.

The current transformer 19 in the measuring means 18 constantly measures the load current flowing through the motor 12 and sends the measurement information to the microprocessor 17. When it is determined that a current equal to or larger than the allowable value flows, an overcurrent protection operation of giving an off command signal to the relay 14 and opening the electromagnetic contactor 15 can be performed. Further, the zero-phase current transformer 20 in the measuring means 18 performs an operation of constantly detecting the ground fault current and sends the detection information to the microprocessor 17, so that the microprocessor 17 performs the operation based on the detection information. When it is determined that a ground fault current has flowed, an earth leakage cutoff operation of giving an off command signal to the relay 14 and opening the electromagnetic contactor 15 can be performed.

That is, the motor 11 stops by its own judgment when an overload current or a ground fault current flows,
This prevents the occurrence of failures due to overload,
The occurrence of the earth leakage accident can be reliably prevented.

FIG. 2 shows a configuration example in which a personal computer 24 as information input means is installed in a control panel 23 in order to exchange information with the motor 11 through the communication device 22.

In short, according to the present embodiment having the above-described configuration, it is not necessary to provide a power distribution control device such as an electromagnetic contactor and a monitoring control device outside the motor 11, and the control panel 23 has a personal computer 24. Need only be installed, and there is no danger that the equipment configuration in the control panel 23 will be complicated. As a result, simplification of the wiring work and reduction of the installation cost associated therewith can be realized.

FIG. 3 shows a second embodiment of the present invention.
As an information input means instead of the personal computer 24,
A configuration in which a push button switch 25 for inputting information of operation or stop of the motor 11 is provided, and a liquid crystal panel 26 as monitor means for displaying measurement information such as an operation state of the motor 11 and a load current value may be provided. Good thing.

Further, the personal computer 24, the push button switch 25 and the liquid crystal panel 26 as described above are used in the third and fourth embodiments of the present invention.
4, 5 and 6 showing the fifth and fifth embodiments, respectively.
If the configuration is provided integrally with the motor 11 as described above, there is no need to prepare the control panel 23 again.
State monitoring and operation switching can be performed near the motor 11.

Further, as shown in FIGS. 7, 8 and 9 showing the sixth, seventh and eighth embodiments of the present invention, a personal computer 24, a push button switch 25 and a liquid crystal panel 26 are provided.
With a configuration in which the control panel 23 is attached to the motor 11 by a detachable cassette method, it is not necessary to prepare the control panel 23 as described above, and it is possible to perform state monitoring and operation switching near the motor 11. In addition, the personal computer 24, the push button switch 25 and the liquid crystal panel 2
The motor 6 can be detached from the motor 11 at any time, so that it is possible to flexibly arrange devices and to obtain an effect that maintenance becomes easy.

FIG. 10 shows a ninth embodiment of the present invention. Only the parts different from the first embodiment will be described below. The ninth embodiment is different from the first embodiment in that the switching unit 13, that is, the relay 14 or the electromagnetic contactor 15 is used.
Opening / closing unit 13 using a mechanical switch such as
Instead, a switching circuit 27 using a semiconductor is provided as control means. The switching circuit 27 is selectively turned on and off by a command signal from the microprocessor 17.

According to such a configuration, the operation of the motor 11 can be controlled by controlling the switching circuit 27 based on the command signal output from the microprocessor 17, and the switching mode is controlled. By doing so, it is also possible to operate the motor 11 at a variable speed.

FIGS. 11 and 12 show a tenth embodiment and an eleventh embodiment of the present invention, respectively, and only those parts which differ from the first embodiment will be described below.
That is, the tenth embodiment shown in FIG. 11 is obtained by removing the measuring means 18 from the configuration of the first embodiment (see FIG. 1). The eleventh embodiment shown in FIG. 12 is obtained by removing the measuring means 18 from the configuration of the ninth embodiment (see FIG. 10).

In each embodiment having such a configuration, the operation and stop control of the motor 11 can be performed only by sending operation information from the outside to the communication device 22. Further, information such as an operation state can be output to the outside through the communication device 22.

FIG. 13 shows a twelfth embodiment of the present invention.
As described above, the opening / closing unit 13 or the switching circuit 27 may be removed from the configuration of the first embodiment or the ninth embodiment.

According to such a configuration, although the supply of power to the electric unit 12 is controlled by external means, information on the operating state of the motor 11 and the load current flowing through the electric unit 12 is transmitted to the communication device. 22 to be output to the outside.

[0036]

As is apparent from the above invention, according to the motor of the first aspect, in addition to the electric motor, a control means for supplying an external power supply to the electric motor, and a command to the control means. It has a built-in configuration, such as a command means for giving, a measuring means for measuring a load current, and an input / output means for inputting / outputting information to / from an external device. In addition, it is possible to perform stop control, overcurrent protection operation, and the like, thereby providing a beneficial effect that simplification of wiring work and reduction of installation cost can be realized.

According to the second aspect of the present invention, since information indicating the operating state of the electric unit and information measured by the measuring means are output to the outside, maintenance and monitoring thereof can be easily performed.

According to the third aspect of the present invention, in addition to the motor unit, a control unit for giving an external power supply output to the motor unit, a command unit for giving a command to the control unit, Built-in input / output means for input / output processing enables overcurrent protection and other operations to be performed with a simplified external device configuration, simplifying wiring work and reducing installation costs. Can be realized.

According to the motor of the fourth aspect, since information indicating the operation state of the electric unit is output to the outside, maintenance and monitoring thereof can be easily performed.

According to the motor described in claim 5, measuring means for measuring a load current or the like flowing through the electric motor, command means for receiving information measured by the measuring means, and input / output processing for inputting / outputting information to / from the outside. With the built-in output means, it is possible to output information such as load current flowing through the motor to the outside, eliminating the need for external measuring equipment. Along with
Maintenance and monitoring can be performed easily.

When the information input means for inputting information from the outside is integrally provided as in the motor according to the sixth aspect, it is not necessary to newly provide an external switch device or the like, and wiring is not required. Workability can be further improved, and as in the motor according to claim 7,
In the case where the information input means is provided detachably, it is possible to obtain an effect that a flexible device arrangement is possible and maintenance of the information input means is facilitated.

In the case where the monitor means for displaying the information output to the outside through the input / output means is integrally provided as in the motor according to the eighth aspect, the monitor means must be newly provided outside. And the wiring workability can be further improved, and when the monitor means is detachably provided as in the motor according to the ninth aspect, flexible equipment arrangement is possible. In addition, the effect that the maintenance of the monitoring means becomes easy can be obtained.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an electrical configuration of a first embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining a connection state with the outside.

FIG. 3 is a view corresponding to FIG. 2, showing a second embodiment of the present invention;

FIG. 4 is a perspective view of a motor showing a third embodiment of the present invention.

FIG. 5 is a view corresponding to FIG. 4, showing a fourth embodiment of the present invention;

FIG. 6 is a view corresponding to FIG. 4, showing a fifth embodiment of the present invention.

FIG. 7 is a view corresponding to FIG. 4, showing a sixth embodiment of the present invention;

FIG. 8 is a view corresponding to FIG. 4, showing a seventh embodiment of the present invention;

FIG. 9 is a view corresponding to FIG. 4, showing an eighth embodiment of the present invention;

FIG. 10 is a view corresponding to FIG. 1, showing a ninth embodiment of the present invention;

FIG. 11 is a view corresponding to FIG. 1, showing a tenth embodiment of the present invention;

FIG. 12 is a view corresponding to FIG. 1, showing an eleventh embodiment of the present invention.

FIG. 13 is a view corresponding to FIG. 1, showing a twelfth embodiment of the present invention.

FIG. 14 is a functional block diagram showing a conventional configuration.

[Explanation of symbols]

11 is a motor, 12 is an electric unit, 13 is an opening / closing unit (control means), 14 is a relay, 15 is an electromagnetic contactor, 16 is an external power supply, 17 is a microprocessor (command means), 18
Is a measuring means, 19 is a current transformer, 20 is a zero-phase current transformer, 21 is a memory device (storage means), 22 is a communication device (input / output means), 23 is a control panel, and 24 is a personal computer (information input means). , 25 indicate a push button switch (information input means), 26 indicates a liquid crystal panel (monitor means), and 27 indicates a switching circuit (control means).

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Keiichi Abe 2121 Nagoo, Asahi-machi, Mie-gun, Mie Prefecture Inside of Toshiba Mie Plant

Claims (9)

[Claims] A control unit for providing an external power supply output to an electric unit; a command unit for supplying a command signal to the control unit; a measuring unit for measuring a load current flowing through the electric unit; A storage unit for storing information necessary for generating a command signal or the like and measurement information by the measurement unit; and an input / output unit for performing input / output processing of information with an external device; Is configured to perform operation control of the electric unit by giving a command to the control unit based on input information from outside, measurement information by the measurement unit, storage information of the storage unit, and the like. Features motor. 2. The apparatus according to claim 1, wherein the command unit is configured to perform control to output information indicating an operation state of the electric unit, measurement information by the measurement unit, and the like to the outside through the input / output unit. The motor according to claim 1, wherein 3. A control means for providing an external power supply output to the electric unit, a command means for providing a command signal to the control means, and information necessary for the command means to generate a command signal and the like. Storage means, and an input / output means for performing input / output processing of information with the outside, wherein the command means instructs the control means based on input information from the outside, storage information of the storage means, and the like. The motor is configured to control the operation of the electric unit by providing the motor. 4. The motor according to claim 3, wherein the command unit is configured to perform a control of outputting information indicating an operation state of the electric unit to the outside through the input / output unit. . 5. A measuring means for measuring a load current or the like flowing through an electric section, a command means for receiving information measured by the measuring means, a storage means for storing information measured by the measuring means, and An input / output means for performing input / output processing of information at the input means, wherein the command means externally outputs measurement information by the measurement means and information stored in the storage means based on input information from the outside through the input / output means. A motor configured to perform control for outputting to a motor. 6. The motor according to claim 1, wherein information input means for externally inputting information is provided integrally. 7. The motor according to claim 6, wherein said information input means is detachably provided. 8. The motor according to claim 2, wherein a monitor means for displaying information output to the outside through said input / output means is provided integrally. And the motor. 9. The motor according to claim 8, wherein the monitor is detachably provided.