JPH09114413A - Motor controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to display various states with a two color light emitting element provided on a motor controller. SOLUTION: Two colors emitted by a two color light emitting element emits and a color when both colors are emitted simultaneously, are made to be color 1, color 2 and color 3, respectively and normality, abnormality and preparatory states of the controller and a motor controlled by it are allocated to respective colors beforehand. When the states of the controller and the motor become the normal and preparatory states, the light emitting element lights the color 1 and color 3 allocated to respective states. Further, the abnormal state contains the case that it is returnable by inputting a signal for clearing the abnormal state into the controller and the case that it isn't returnable unless the power source of the controller is re-applied, and the color 2 is turned on/off when the former is displayed, and the color 2 is lighted when the latter is displayed Respective states and countermeasures at the time of the abnormal state are judged easily by such a display method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor control device for controlling a motor.

[0002]

2. Description of the Related Art In recent years, motor control devices have been required to be downsized.

Conventionally, a motor control device of this type uses a 7-segment display using a monochromatic light emitting device or a plurality of monochromatic light emitting devices in order to display the state of the control device body and the motor to be controlled. ing.

The 7-segment display can display numbers and characters by turning on the light emitting element. When using this, the normal, abnormal, and ready states of the device are assigned to numbers and letters, and each state is judged by displaying the assigned numbers and letters. Further, in order to display the details of the cause of the abnormality, the number of combinations of letters and numbers is increased, and a plurality of 7-segment displays capable of displaying the combination are used. Furthermore, the numbers of motor revolutions and torques, and the values of various parameters for controlling the motors are also displayed in order to confirm them.

When the number of monochromatic light emitting elements used is one, normal and abnormal states are assigned to lighting and blinking, and the state is displayed by the light emitting method of the light emitting elements.

When the number of uses is plural, three kinds of light emitting elements which emit light of each of color 1, color 2 and color 3 are used, and normal, abnormal and ready states are assigned to the light emitting elements of each color. Then, each state is determined by the color of the light emitting element that emitted light. Further, in order to display the cause of the abnormality in detail, a plurality of light emitting elements that emit color 2 are used, and the cause is assigned to each. When the device is in an abnormal state, the light emitting element is turned on to display the cause assigned to the light emitting element.
Further, the number of rotations of the motor is confirmed by the number of lights of the light emitting element. When the number of rotations increases, the number of rotations increases. When the number of rotations decreases, the number of rotations decreases. However, detailed values cannot be confirmed.

[0007]

In such a conventional display method for a light emitting element, the proportion of the 7-segment display or a plurality of light emitting elements in the front part of the motor control device becomes large, and the size of the control device can be reduced. It was hindering me. In addition to the fact that a single light emitting element cannot display many states, the same color is used to represent a normal state and an abnormal state, which makes it difficult to distinguish between the states. .

Furthermore, the use of a 7-segment display or a plurality of monochromatic light emitting elements increases power consumption due to the large number of light emitting elements to be lit, and is complicated for lighting them. The fact that circuits have to be created is another factor that hinders miniaturization.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a small motor control device capable of displaying many states.

[0010]

In order to achieve the above-mentioned object, the present invention uses a two-color light emitting element in a motor control device, and obtains a number of colors obtained by lighting, turning off and blinking the light emitting element. The state display pattern is used to display each state of the motor and the motor control device and their contents.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Since the motor control device of the present invention can display a large number of statuses with a small number of light emitting elements, the front face portion of the motor control device can be made small and the control device main body is also small. It can be converted.

An embodiment of the present invention will be described below with reference to the drawings. The two colors emitted by the two-color light emitting element and the colors when both of them simultaneously emit light are color 1, color 2, and color 3, and the normal and abnormal states of the control device and the motor controlled by them are determined for each color. Assign the readiness status.

As an example, color 1, color 2, and color 3 are green, red, and orange, respectively. When the power of the control device is turned on, the light emitting element lights up in orange because it is in a ready state. An external signal is then input to the control device to control the motor. At this time, if it is in a normal state, the light emitting element lights up green, and the motor is controlled to rotate. However, if an abnormal state occurs at this time, the light emitting element emits red light. Here, there are cases where recovery can be performed by inputting a signal for clearing the abnormal state to the control device, and cases where recovery is not possible unless the power supply of the control device is restarted. When displaying the former, red is blinked by applying a voltage to the light emitting element as shown in FIG. 1, and when displaying the latter, red is blinked.

In order to distinguish the details of the cause of the abnormal state, the red light emitting method is as follows. When it is possible to recover by inserting a clear signal, apply the voltage applied to the light emitting element so that green blinks between red blinks, as shown in Fig. 2.
The cause of the abnormality can be distinguished by the ratio of the number of blinks of green to the number of blinks of red. When it is not possible to recover, red is blinked by applying a voltage as shown in FIG. 3, and the cause of the abnormality can be distinguished by the difference in the time during which red is emitting light, that is, the blinking speed.

By determining the correspondence between the color of the light emitting element and each state as described above, it is possible to easily determine each state of light emission of the light emitting element.

The method of coping with the abnormal condition can be determined by the blinking rate of green and red and the blinking rate of red.

[0017]

According to the present invention, since a display pattern of a large number of states can be formed with a small number of light emitting elements, the number of light emitting elements used can be reduced, each state can be easily determined, and further display can be performed. It is possible to provide a small motor control device that suppresses power consumption.

[Brief description of the drawings]

FIG. 1 is a diagram showing a relationship between time and voltage applied to blink red light of a light-emitting element in one embodiment of the present invention.

FIG. 2 is a diagram showing a difference in blinking ratio between green and red according to the embodiment of the present invention.

FIG. 3 is a diagram showing a difference in blinking speed of red in the embodiment of the present invention.

Claims (3)

[Claims] 1. A color in which two LEDs (light-emitting diodes) are enclosed in the same pattern and only the first LED is lit and the second LED is lighted.
A light emitting element in which only the LED of which color is lit and the color of which both the first and second LEDs are lit simultaneously are different,
A motor control device for allocating and displaying the normal state, abnormal state, and preparation state of the motor and the motor control device to the above three colors. 2. A normal state of a motor and a motor control device,
A motor control device that displays the contents of each of the abnormal state and the preparation state by the difference between the lighting and blinking of the light emitting element and the blinking speed of the light emitting element. 3. A normal state of a motor and a motor control device,
A motor control device that displays the contents of each of the abnormal state and the preparation state by the difference in the combination of blinking colors of the light emitting elements and the difference in the blinking ratio of the combined colors.