JP2002034261A - Parameter displaying method and parameter setting apparatus in inverter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operation ability by saving the number of times of operations required for changing the setting of parameters of an inverter. SOLUTION: The parameter number given to each parameter of the inverter is composed of coarse function numbers A1, A2, B1,... which may be changed independently and fine function numbers 00, 01, 02,.... In the case of changing the preset values of parameters of the inverter, the parameters are roughly searched by selecting the coarse functions of parameters using the coarse function numbers, thereafter searching and displaying the fine functions and then changing the setting values of parameters. With these operations, the parameters of which setting values are requested to be changed can be displayed with a small number of times of operations.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parameter display method for displaying parameters set in an inverter device and a parameter setting device for setting various parameters.

[0002]

2. Description of the Related Art In an inverter for controlling an AC motor at a variable speed, it is necessary to set various parameters in order to match the characteristics of the AC motor with required specifications. Therefore, the inverter device is provided with a parameter setting device for setting various parameters, and the user uses the parameter setting device to set, change, and confirm various parameters.

FIG. 10 shows the appearance of such a parameter setting device. The parameter setting device includes a display unit 30
And ESC key 31, DATA / ENTER key 32,
Right shift key 33, UP key 34, DOWN key 35,
RUN key 36, STOP key 37, MENU key 38
And other various operation units. The other keys without reference numerals are not particularly relevant to the description of the present invention, and the description thereof will be omitted.

In this parameter setting device, parameters are set and confirmed by operating various keys 31 to 35. By operating the RUN key 36, the inverter device is started, and the AC motor is controlled according to the set parameters. And
By operating the STOP key 37, the inverter device stops. By operating the MENU key 38, various modes of the parameter device are switched.

In the conventional parameter setting device, various parameters prepared corresponding to a plurality of functions of the inverter device are displayed on the display unit 30 together with parameter numbers. The operator of the inverter device displays a parameter whose setting value is to be changed on the display unit 30 and changes the setting value of the parameter.

[0006] Inverter devices have a number of parameters that must be set. For example, if the parameter is 1
When there are 41 types, the function names of the parameters are arranged in the order of the parameter numbers as shown in FIG. FIG.
Reference numeral 2 denotes a display example of a parameter number and a function explanation text. By operating the UP key 34 or the DOWN key 35, the parameter number and its function name are scrolled and displayed as shown in FIG.

When it is desired to change the value of a parameter of a certain function, the parameter number and function name of the parameter to be changed are displayed on the display unit 30, and DATA / E
By operating the NTER key 32, the mode shifts to a mode for changing the parameter value. When the change of the parameter value is completed in that mode, the ESC
By operating the key 31, it is possible to return to the mode in which the original function name is displayed.

In this conventional parameter setting device for an inverter device, when changing a parameter of a certain function among a plurality of functions of the inverter device, an operator of the inverter device needs to change the parameter number and the function of the parameter. Until the name is displayed, the user must operate the UP key 34 or the DOWN key 35, requiring a large number of operations, and the operation is complicated.

[0009]

The above-described conventional parameter setting apparatus has a problem that a large number of operations are required to display a parameter whose value is to be set, and the operation is complicated. Was.

It is an object of the present invention to provide a parameter setting device with improved operability by reducing the number of operations required to change the parameter setting of an inverter device.

[0011]

In order to achieve the above object, a parameter setting device in an inverter device according to the present invention displays parameter numbers assigned to a plurality of parameters for driving the inverter device. ,
A parameter setting device capable of changing a set value of a parameter corresponding to the parameter number, wherein the parameter number is a general function number that is a number commonly assigned to a plurality of parameters having similar functions. And a detailed function number, which is a number assigned to each parameter in order to specify each parameter from among a plurality of parameters to which the same general function number is assigned. The feature number can be changed independently.

According to the present invention, the parameter number is composed of a general function number and a detailed function number, each of which can be independently changed, so that the parameter whose setting value is to be changed can be displayed with a small number of operations. Thus, the number of operations for setting the parameters can be greatly reduced, and the operability can be improved.

According to the parameter setting device in the inverter device of the present invention, the selection of the general function number and the detailed function number is switched by operating a specific key, and the change of the selected number is performed. You may make it possible.

According to another parameter setting device of the present invention, the fact that the general function number or the detailed function number is selected is indicated by blinking the display of the general function number or the detailed function number. It may be shown.

Further, according to the parameter setting device in another inverter device of the present invention, when the general function number is selected, the general function name is displayed, and when the general function number is selected, the general function name is displayed. May display a detailed function name.

[0016]

Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a hierarchical diagram showing a configuration of parameter numbers in a parameter setting device in an inverter device according to an embodiment of the present invention.

The appearance of the parameter setting device in the inverter device of this embodiment is the same as that shown in FIG. 10, and only the configuration of the parameter numbers and the operation method for displaying the parameter whose setting is to be changed are those of the conventional device. Is different from

In the parameter setting device of the present embodiment, as shown in FIG. 1, the parameter number is composed of a general function number and a detailed function number which can be independently changed. The general function number is a number commonly assigned to a plurality of parameters having similar functions. The detailed function number is a number assigned to one parameter to specify each parameter from among a plurality of parameters assigned the same general function number. Values that can be set for each parameter are defined as shown in FIG.

In the parameter setting device of this embodiment, a parameter number composed of a general function number and a detailed function number is displayed on the display unit 30 together with the function name and the value set for the parameter. When the general function number is selected, the UP key 34 or DOW
When the N key 35 is operated, only the general function number changes,
When the UP key 34 or the DOWN key 35 is operated when the detailed function number is selected, only the detailed function number changes.

FIG. 3A shows a parameter number B1-01.
FIG. 9 shows a transition diagram of the parameter number display when the UP key 34 or the DOWN key 35 is input when the general function number is selected. FIG. 3B shows a transition diagram of the parameter number display when the UP key 34 or the DOWN key 35 is input when the detailed number 01 of the parameter number B1-01 is selected.

In order to indicate that either the general function number or the detailed function number is selected, the parameter setting device of the present embodiment uses the currently selected function number between the general function number and the detailed function number. Make it blink.
However, the present invention is not limited to such a case, and the function number selected by another display method may be indicated. In the following figures, "" is used to indicate that a number or the like is blinking. For example, when the approximate function number B1 is blinking, it is displayed as "B1".

In this embodiment, the right shift key is used to switch between selection of a general function number and selection of a detailed function number.

FIG. 4 is a diagram for explaining an operation of switching between selection of the general function number and selection of the detailed function number. Each time the right shift key 33 is operated, the flashing of the general function number B1 and the flashing of the detailed function number 01 are performed. Description will be made using a case where the switching is performed cyclically. When the user wants to change the set value of the displayed parameter,
By operating the / ENTER key 32, the mode shifts to a mode for changing the set value. In the mode for changing the set value, the flashing of the set value indicates that the set value can be changed. By operating the UP key 34 or the DOWN key 35 in this state, the set value is switched. When the change of the set value is completed, E
By operating the SC key 31, it is possible to return to the original parameter display screen.

FIG. 5A shows that the general function number is changed to B2 by operating the UP key 34 when the general function number B1 is blinking, and the "operation mode" which is the function name of the general function number B1. It is a figure showing the state where "DC braking start frequency" which is a function name of the outline function number B2 was displayed from "selection". FIG. 5B shows a case where the general function number is B1 and the detailed function number is 01 blinking.
By operating the UP key 34, the detailed function number becomes 01.
FIG. 10 is a diagram showing a state in which the function name of the detailed function number 01 is displayed as “selection of operation command” from the “selection of frequency command” which is the function of the detailed function number 01.

Next, referring to FIGS. 6 to 9, means for actually realizing the parameter device in the inverter device of the present embodiment will be described in further detail.

First, FIG. 6 shows a hierarchy of display functions of the parameter setting device of this embodiment. In the parameter setting device of the present embodiment, as shown in FIG.
By operating the button 8, the mode of the parameter setting device is switched. By operating the MENU key 38, the mode is switched among a drive mode, a quick program mode, an advanced program mode, a verify mode, and an auto tuning mode.

The drive mode is a mode in which the inverter device is operated, and is capable of displaying a frequency command, an output frequency, an output current, an output voltage, and the like, and displaying abnormal contents, an abnormal history, and the like. . The quick program mode is a mode for referring to and setting the minimum constant required for the test run of the inverter. The advanced program mode is a mode for referring to and setting all constants of the inverter device. The verify mode is a mode in which only constants changed from the initial values in the program or the auto tuning mode are displayed. The auto tuning mode is a mode for automatically setting a motor constant.

Further, in the parameter display device of the present embodiment, a message table is provided for each general function, detailed function, mode, and the like, and message data and the like to be displayed on the display unit 30 are stored in the message table. I do. FIG. 7 shows the connection of the message tables.

As shown in FIG. 7, DATA / ENT
By operating the ER key 32, the UP key 34, the DOWN key 35, and the like, transition between message tables is performed.

Next, FIG. 8 shows the structure of the message table in FIG. In FIG. 8, an area indicated by “menuxt” is an area for storing message data to be displayed on the display unit 30 and has a function number “A”.
The message data in a plurality of languages is stored so that the character string selected in “select display language”, which is a function of “1-00”, can be displayed.
Is an area for storing a pointer to a message table that moves when the DOWN key 35 is operated. The area indicated by “next” is an area for storing a pointer to a message table that moves when the UP key 34 is operated. "G
The area indicated by “o” is an area for storing a pointer to a message table that moves when the DATA / ENTER key 32 is operated.

The message is displayed in the language selected by the function indicated by the function number "A1-00" of the message pointed to by the pointer "thismenu" in the message table. When the UP key 34 is pressed, “next”, D
Pressing the OWN key 35 causes "prev", DATA / EN
Pressing the TER key 32 moves the pointer "thismenu" to the message table indicated by "go".

A stack for a message table is provided in order to perform a process of returning to a higher level when the ESC key 31 is operated. When the DATA / ENTER key 32 is operated, “g” is displayed in “thismenu”.
Before setting the pointer stored in the area indicated by "o", the pointer currently set to "thismenu" is stored in the stack, and the ESC is set.
When the key 31 is pressed, the data stored in the stack is set to “thismenu” to set the DA
It is possible to return to the message table before the TA / ENTER key 32 was pressed.

Next, the structure of the constant table in FIG. 7 is shown in FIG.
Shown in The constant table is a table that stores detailed information of data corresponding to all constants, monitors, and other variables accessed by MODBUS on a one-to-one basis.

In FIG. 7, an area indicated by "address of constant RAM" is an area in which the corresponding constant is stored.
This is an area for storing an AM address. "lower limit"
Is an area for storing the lower limit value of the constant setting. The area indicated by “upper limit” is an area for storing the upper limit value of the constant setting. The area indicated by “information bits” is an area for storing bits indicating the size of a constant or the like. “Constant calculation address”
Is an area for storing the address of a function for constant calculation. The area indicated by “scan RAM address” is an area for storing the address of the scan RAM for storing the value after the constant calculation. The area indicated by “display” is an area for storing the display digits of the constant and the decimal point position. The area indicated by “constant number” is an area for storing a constant number by a numerical value. The area indicated by “Register number” is an area for storing the MODBUS register number. The area indicated by “access level” is an area for storing an access level for each control mode.

According to the parameter setting device of this embodiment, when the operator of the inverter device intends to change the set value of a certain parameter, the operator first selects the general function of the parameter using the general function number. After the parameter is roughly searched, a detailed function is searched and displayed, and then the parameter setting value is changed.
According to the parameter setting device of the present embodiment, by performing the above-described operation, it is possible to display a parameter whose setting value is to be changed with a smaller number of operations compared to a conventional parameter setting device, Operability can be improved.

[0036]

As described above, according to the present invention,
The parameter number consists of a general function number and a detailed function number that can be changed independently of each other, so that the parameter whose setting value is to be changed can be displayed with a small number of operations, so The effect that the operability can be improved by greatly reducing the number of operations can be obtained.

[Brief description of the drawings]

FIG. 1 is a hierarchical diagram showing a configuration of parameter numbers in a parameter setting device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating types of parameters in a parameter setting device according to an embodiment of the present invention.

FIG. 3 is a diagram for explaining a parameter setting method in the parameter setting device according to one embodiment of the present invention.

FIG. 4 is a diagram for explaining a parameter setting method in the parameter setting device according to the embodiment of the present invention.

FIG. 5 is a diagram for explaining a parameter setting method in the parameter setting device according to one embodiment of the present invention.

FIG. 6 is a diagram illustrating a hierarchy of display functions of the parameter setting device according to the embodiment.

FIG. 7 is a diagram showing a connection between message tables;

FIG. 8 is a diagram showing a structure of a message table in FIG. 7;

FIG. 9 is a diagram showing a structure of a constant table in FIG. 7;

FIG. 10 is a diagram showing an appearance of a conventional parameter setting device.

FIG. 11 is a diagram showing a relationship between a parameter number used in a conventional parameter setting device and a function of each parameter.

FIG. 12 is a diagram for explaining a parameter setting method in a conventional parameter setting device.

[Explanation of symbols]

 30 Display 31 ESC key 32 DATA / ENTER key 33 Right shift key 34 UP key 35 DOWN key 36 RUN key 37 STOP key 38 MENU key

Claims (8)

[Claims] 1. A parameter setting device capable of displaying parameter numbers assigned to a plurality of parameters for driving an inverter device and changing a set value of a parameter corresponding to the parameter number. The parameter number is a general function number which is a number commonly assigned to a plurality of parameters having similar functions, and each parameter is specified from a plurality of parameters having the same general function number. A detailed function number, which is a number assigned to each parameter, so that the general function number or the detailed function number can be changed independently. 2. By operating a specific key,
2. The parameter setting device according to claim 1, wherein the selection of the general function number and the detailed function number is switched, and the selected number can be changed. 3. The inverter device according to claim 1, wherein the selection of the general function number or the detailed function number is indicated by blinking the display of the general function number or the detailed function number. Parameter setting device. 4. The general function name is displayed when the general function number is selected, and the detailed function name is displayed when the detailed function number is selected. A parameter setting device in the inverter device according to claim 1. 5. A parameter display method for displaying a parameter number assigned to each of a plurality of parameters for driving an inverter device and displaying a set value of a parameter corresponding to the parameter number. The number is a general function number which is a number commonly assigned to a plurality of parameters having similar functions, and each parameter is used to specify each parameter from among a plurality of parameters having the same general function number. And a detailed function number which is a number given to the inverter device, wherein the general function number or the detailed function number can be changed independently. 6. By operating a specific key,
6. The parameter display method in the inverter device according to claim 5, wherein the selection of the general function number and the detailed function number is switched, and the selected number can be changed. 7. The inverter device according to claim 5, wherein the display of the general function number or the detailed function number blinks to indicate that the general function number or the detailed function number is selected. Parameter display method. 8. The general function name is displayed when the general function number is selected, and the detailed function name is displayed when the detailed function number is selected. 3. A parameter display method in the inverter device according to claim 1.