JPH0370494A - Function setting of inverter and displaying method for output state - Google Patents

Abstract

PURPOSE:To alleviate danger of erroneous recognition of a display content, to shorten present time of function setting and to further reduce the number of present light emitting diodes in a state display by simultaneously displaying numbers and its content with a 7-segment light emitting diode and liquid crystal display board. CONSTITUTION:A function code to be set is displayed by numbers on a 4-digit 7-segment LED 1. A functional name 3 corresponding to a function code is displayed on an uppermost line of a 4-line 10-digit LED 2, and a selective branch 4 corresponding to the name 3 is displayed on the lower 3 lines. The branches 4 are three lines, and a selective display 5a and a non-selective display 5b are provided as a selective state display selection symbol at the left end of the line. The name 3 is 'TEIKAKUSHUHASU', and the selected selective branch 4 is '50Hz'. Thus, the confirmation of setting function setting worker is facilitated, a danger of erroneous setting can be reduced, and predetermined setting time can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for setting functions of an inverter for variable speed control of an AC motor, and a method for displaying its output status.

[Conventional technology]

Conventional methods for setting functions and displaying the output status of this type of inverter use 7-segment light emitting diodes (hereinafter referred to as LEDs) of the required digits, and when setting the function, the code number of the function to be set and the code number of the function to be set are used. It is known that the setting contents are selected from a setting code table and displayed numerically on the LED, and further, in the case of the status display, if the content is a quantitative display, the numerical value is similarly displayed on the LED. There is.

[Problem to be solved by the invention]

However, in the conventional inverter function setting method and output status display method as described above, the displayed content is only numerical data, and when there are many setting targets or display targets, the display content on the LED may be misunderstood. There is a risk of this, and the setting code table is essential for the function settings, and careful settings using the code table are required, and the status display is controlled in order to reduce the risk of misidentification. Turning on input/output terminals
10 FF It required the same number of LED groups as the required display target items, each having the required number of digits, including the FF status display.

In view of the above, the present invention provides inverter function settings and output states that reduce the risk of misunderstanding the display contents, shorten the time required for the function settings, and further reduce the number of LEDs required for the status display. The purpose is to provide a display method.

[Means to solve the problem]

In order to achieve the above object, in the inverter function setting and output state display method of the present invention, regarding the function setting, a 7-segment light emitting diode (LED) for displaying the code number of the function to be set, and a 7-segment light emitting diode (LED) for displaying the code number of the function to be set; It is used together with a liquid crystal display (hereinafter referred to as LCD) that displays the name of the corresponding setting target function and its content options, and a 7-segment LED for numerical display of the display target status regarding the output status display. and L for displaying the contents of the level meter or the ON/OFF status of the control input/output terminals.
It shall be used together with CD.

[Effect]

By displaying numerical values of various data related to inverter setting target functions and output status display items and displaying the contents including the names of the various data at the same time using LEDs and LCDs, the function setting worker or inverter operator can display the numerical values. This makes it easy and reliable to confirm the contents. A 7-segment LED (required digits, for example, 4 digits) and an LCD (required digits, for example, 4 rows and 10 digits) are arranged vertically and are used together to simultaneously display the numerical value as described above and its contents.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 and 2 are format diagrams of the function setting screen according to the present invention. Figure 1 corresponds to the case where the number of options is 3 or less, and Figure 2 similarly corresponds to the case where the number of options is 4 or more. FIG. Also, Figures 3 and 4
The figures are format diagrams of the output status display screen according to the present invention. Fig. 3 corresponds to the case where the LCD is used as a level meter indicating the ratio of the numerical value to be displayed to the reference value, and Fig. 4 shows the format of the output status display screen according to the present invention. It is a format diagram corresponding to the case where "C" is used as a monitor for displaying the ON 10FF status of the control input terminal.

In Fig. 1, ■ is a 4-digit, 7-segment LED, 2 is a 4-row, 10-digit LCD, and both are arranged above and below each other as shown in the figure, and the LED 1 indicates the function code to be set numerically. The above LCD 2 displays the function name 3 corresponding to the function code on the top line, and the function name 3 below it is displayed.
Option 4 corresponding to the name is displayed in the row. Note that 3
At the left end of each row of option rows, selection symbols for displaying selection status are provided as selection display 5a and non-selection display 5b as shown in the figure. The choices given were "50"
It becomes.

FIG. 2 shows a case where the number of options 4 is increased to six or less for LCD 2 in FIG. 1.

Next, FIG. 3 shows a format diagram of an output status display screen equipped with an LED and an LCD similar to those in FIGS. 1 and 2, but there are two types of display regarding the use of the LCD. It is used as a level meter for the target, and two rows are allocated to each, and the upper row of each displays level meter display contents 6a and 6b, and the lower row of each corresponds to the above-mentioned contents 6a and 6b. Each numerical value is displayed as a ratio in the minimum unit of 10%.

Furthermore, FIG. 4 shows the case where the LCD in FIG. 3 is used as a monitor for displaying the status of eight types of control input terminals, and the leftmost first digit of each of the eight divided lines shows the ON status and OFF status. Status display symbols 9a and 9b are provided, and on the right side of each symbol, the name of the control input terminal is displayed using up to four characters.

〔Effect of the invention〕

According to the present invention, regarding the function to be set and the output state to be displayed in the inverter operation, by simultaneously displaying each numerical value and its contents using the LED and LCD, the setting contents by the operator setting the function can be displayed. This makes it easier to confirm the inverter output state, thereby reducing the risk of incorrect settings and shortening the time required for setting.Furthermore, the inverter operator can easily and reliably confirm the inverter output state.

[Brief explanation of drawings]

1 and 2 are format diagrams of a function setting screen showing an embodiment of the present invention, and FIGS. 3 and 4 are format diagrams of an output status display screen.

Claims (1)

[Claims] 1) A method for setting functions of an inverter for variable speed control of an AC motor, the method comprising a 7-segment light emitting diode for displaying a code number of a function to be set, and a name of the function to be set corresponding to the code number. A method for setting functions of an inverter, characterized in that a liquid crystal display panel is used to display the information and options of the contents. 2) A method for displaying the output status of an inverter that controls the variable speed of an AC motor, which includes a 7-segment light emitting diode for numerical display of the status to be displayed, and a level meter content display or control input/output terminal ON/OFF status display. A method for displaying the output status of an inverter, characterized in that it is used in conjunction with a liquid crystal display board for use with the device.