JP2007135325A - Inverter and parameter setting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inverter with a parameter setting device, which improves ease of operation by selectively using parameters to be adjusted without the need for an operator's reference to an instruction manual or the like even if an abnormal event occurs. <P>SOLUTION: This inverter is equipped with the parameter setting means having a storage device for storing setting values of a plurality of parameters, a display unit 30 for displaying the respective parameters, and a setter 32 for setting respective parameter values. The storage device and the display unit 30 includes a means for referring to and setting only parameters to be adjusted for an abnormal event. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a parameter setting device for setting various parameters and an inverter device including the method.

In an inverter device for variable speed control of an AC motor, it is necessary to set various parameters in order to match the characteristics of the AC motor with the required specifications. Although the number of parameters that can be set tends to increase with the increase in the number of functions of the inverter device, the burden on the operator who sets the parameters also increases and the work efficiency deteriorates. Therefore, the inverter device is provided with a parameter setting device for setting various parameters, and an operator uses the parameter setting device to set, change, and confirm various parameters.
In the conventional inverter device, four methods have been proposed for setting, changing and checking various parameters. First, a method of searching for a detailed function using an approximate function number (see, for example, Patent Document 1), and second, a plurality of parameter groups prepared to suit the use of the inverter device ( For example, refer to Patent Document 2), third display only for parameters whose settings have been changed (for example, refer to Patent Document 3), and fourth include an original parameter data group by the operator. Yes (see, for example, Patent Document 4 and Patent Document 5).

First, a method for searching for a detailed function using the general function number will be described.
FIG. 5 is an external view of such a parameter setting device. The parameter setting device includes a display unit 30 and various operation units such as an ESC key 31, a DATA / ENTER key 32, a right shift key 33, an UP key 34, a DOWN key 35, a RUN key 36, a STOP key 37, and a MENU key 38. And are provided. There are other keys, but they are omitted because they are not relevant to the description of the present invention.
In this parameter setting device, parameters are set and confirmed by operating various keys 31 to 35. Then, the inverter device is started by operating the RUN key 36, and the AC motor is controlled according to the set parameters. Then, by operating the STOP key 37, the inverter device is stopped. Further, by operating the MENU key 38, various modes of the parameter device are switched.

Next, the hierarchy of the parameter number configuration in the parameter setting device in the inverter device will be described with reference to FIG.
As shown in FIG. 6, the parameter number is composed of a general function number and a detailed function number that can be changed independently. 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 in order to identify each parameter from among a plurality of parameters assigned the same general function number. Each parameter defines a value as shown in FIG. 7 as a value that can be set. The parameter 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, only the general function number changes when the UP key 34 or the DOWN key 35 shown in FIG. 4 is operated, and when the detailed function number is selected. When the UP key 34 or the DOWN key 35 is operated, only the detailed function number is changed.

Next, transition of parameter number display will be described with reference to FIG. (A) is a transition diagram of the parameter number display when the UP key 34 or the DOWN key 35 shown in FIG. 5 is input when the general function number of the parameter number B1-01 is selected. FIG. 11 is a transition diagram of 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 currently selected function number of the general function number and the detailed function number is blinked.
In the following figures, for example, when the general function number B1 is blinking, the blinking state is displayed as “B1”. The right shift key shown in FIG. 5 is used to switch between the selection of the general function number and the selection of the detailed function number.

Next, an operation for switching between selection of the general function number and selection of the detailed function number will be described with reference to FIG. A description will be given using a case where the blinking of the general function number B1 and the blinking of the detailed function number 01 are cyclically switched every time the right shift key 33 is operated. Then, when the setting value of the displayed parameter is to be changed, the mode is changed to a mode in which the setting value is changed by operating the DATA / ENTER key 32. In the mode for changing the set value, the set value can be changed by blinking. In this state, the set value is switched by operating the UP key 34 or the DOWN key 35. When the change of the set value is completed, the original parameter display screen can be returned by operating the ESC key 31.

FIG. 10A shows a state in which a certain function name is displayed. When the general function number B1 is blinking, the general function number is changed to B2 by operating the UP key 34. FIG. 11 is a diagram showing a state in which “DC braking start frequency” that is a function name of the general function number B2 is displayed from “operation mode selection” that is the function name of the general function number B1. FIG. 10B shows that the detailed function number is changed from 01 to 02 by operating the UP key 34 when the general function number is B1 and the detailed function number 01 is blinking. From “frequency command selection” that is a function of 01, “operation command selection” that is a function name of detailed function number 01 is displayed.

In this way, when an operator of an inverter device intends to change a set value of a certain parameter, it first searches for the parameter roughly by selecting the approximate function of the parameter using the approximate function number, and then continues with details. The parameter settings are changed after searching and displaying detailed functions. By performing the operation as described above, it is possible to display a parameter for which the set value is to be changed with a smaller number of operations, thereby improving operability.

Next, a case where a plurality of parameter groups are prepared so as to match the application of the second inverter device will be described. A parameter group composed of parameters selected from a plurality of parameters is prepared in advance so as to suit the application of the inverter device, and when the application of the parameter setting target device is selected by the application selection means, this application is used. Corresponding parameter group is taken out, or a required parameter is arbitrarily selected by the operator from a plurality of parameters so as to suit the use of the parameter setting target device, and the parameter numbers of the parameters included in these are set to the serial number. By being changed and displayed on the display unit, the number of parameters to be managed is reduced and the burden on the operator is reduced.
Next, a case where only the third setting-changed parameter is displayed will be described. By displaying only the changed parameters among many parameters, the time for checking the changed parameters is reduced, and adjustments are made without inadvertently accessing parameters that are not particularly necessary for the operator. Time is shortened and the risk of misconfiguration is reduced.
Next, the case where the fourth operator has a unique parameter data group will be described. In the initial parameter setting of the inverter device, a plurality of user-specific parameter data groups are provided so that the operator can easily switch and restore the setting of the initial value data group, and parameter initialization can be performed by selecting an arbitrary data group. In this way, troubles such as setting mistakes associated with data changes are avoided.
JP 2002-34261 A (page 3-5, FIG. 1-5, FIG. 10) JP 2003-259688 A JP 05-146194 A Japanese Patent Laid-Open No. 08-237991 JP 2004-40966 A

A parameter setting device for setting various parameters in a conventional inverter device is configured to select parameters by function, and if a malfunction occurs, the operator must refer to the instruction manual etc. Since the parameter to be adjusted cannot be easily selected, there is a problem that the parameter adjustment takes time.
The present invention has been made in view of such a problem, and an operator selects each malfunction event so that only parameters to be adjusted are displayed. Further, an abnormality occurs and an abnormal code is displayed. An object of the present invention is to provide a parameter setting device for an inverter device that enables a failure event to be directly selected by pressing a specific key on the parameter setting device in the displayed state.

In order to solve the above problem, the present invention is configured as follows.
According to a first aspect of the present invention, there is provided a parameter setting in an inverter device comprising storage means for storing setting values of a plurality of parameters, display means capable of displaying each parameter, and setting means capable of setting each parameter value. In the apparatus, the storage means and the display means are provided with means capable of referencing and setting only parameters to be adjusted for the failure event.
According to a second aspect of the present invention, there is provided an inverter apparatus comprising storage means for storing setting values of a plurality of parameters, display means capable of displaying each parameter, and setting means capable of setting each parameter value. The parameter setting device includes display means for displaying the contents of the trouble event and means for automatically selecting an adjustment parameter by pressing a specific button in accordance with the trouble event.
According to a third aspect of the present invention, in the parameter setting method in the inverter device, the setting values of the plurality of parameters are stored by the storage means, each parameter is displayed by the display means, and each parameter value is set by the setting means.
Determining whether an abnormality is displayed on the display means; determining whether a specific button is pressed; determining whether an abnormality code displayed on the display means is registered in the storage means; The display means is switched to a state in which a malfunction event corresponding to the storage means is selected.

According to the first aspect of the present invention, when a malfunction event occurs, the operator can easily select the parameter to be adjusted without referring to the instruction manual, etc. The time required for parameter adjustment during shooting can be shortened.
In addition, according to the second and third aspects of the present invention, when an abnormal code is detected, it is possible to reduce the trouble for the operator to select a corresponding malfunction event.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a hierarchical configuration of display functions of a parameter setting device in an inverter device of the present invention. The appearance of the parameter setting device of this embodiment is the same as that shown in FIG. The part where the present invention is different from the conventional inverter device is a part provided with a troubleshooting mode. In the troubleshooting mode, when each trouble event is selected, only the parameter to be adjusted can be displayed and set continuously.
FIG. 2 shows a method for selecting parameters in the troubleshooting mode of the present invention. In other words, if you select a failure event, multiple parameters to be adjusted can be accessed in succession, eliminating the need for the operator to refer to the instruction manual, and the operation for switching between multiple parameters is greatly reduced. There are things that can be reduced.

FIG. 3 shows that by pressing the DATA / ENTER key 32 when an abnormality is displayed on the parameter setting device, the corresponding trouble event is automatically selected in the troubleshooting mode.
Next, an algorithm for selecting a corresponding malfunction event in the troubleshooting mode will be described with reference to FIG. The display switching of the parameter setting device is performed according to the following procedure.
(1) It is determined whether an abnormality is displayed on the parameter setting device.
(2) It is determined whether the DATA / ENTER key is pressed.
(3) It is determined whether the displayed abnormal code is registered in the troubleshooting mode.
(4) The display is switched to the state where the trouble event corresponding to the troubleshooting mode is selected.
In this way, the operator can manually switch from the abnormal display mode to the troubleshooting mode, and the key operation for selecting the corresponding malfunction event from the malfunction events can be greatly omitted.

The figure which shows the hierarchy of the display function of the parameter setting apparatus which shows 1st Example of this invention. The figure which shows the parameter selection method in troubleshooting mode of the parameter setting apparatus which shows 1st Example of this invention. The figure which displays the state which selected the malfunction event which shows the 2nd Example of this invention. The algorithm which displays the malfunction event which shows the 2nd Example of this invention. The figure which shows the external appearance of the conventional parameter setting apparatus. FIG. 6 is a hierarchical diagram showing a configuration of parameter numbers in a conventional parameter setting device. The figure which shows the kind of each parameter in the conventional parameter setting apparatus. The figure for demonstrating the parameter setting method in the conventional parameter setting apparatus. The figure for demonstrating the parameter setting method in the conventional parameter setting apparatus. The figure for demonstrating the parameter setting method in the conventional parameter setting apparatus.

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 (3)

In an inverter device comprising a parameter setting device comprising storage means for storing setting values of a plurality of parameters, display means capable of displaying each parameter, and setting means capable of setting each parameter value,
An inverter apparatus provided with a parameter setting device, wherein the storage means and the display means are provided with means capable of referring to and setting only parameters to be adjusted for malfunction events. In an inverter device comprising a parameter setting device comprising storage means for storing setting values of a plurality of parameters, display means capable of displaying each parameter, and setting means capable of setting each parameter value,
An inverter device comprising a parameter setting device, comprising: display means for displaying the contents of a malfunction event; and means for automatically selecting an adjustment parameter by pressing a specific button in accordance with the malfunction event. In a parameter setting method in an inverter device that stores setting values of a plurality of parameters by storage means, displays each parameter by display means, and sets each parameter value by setting means,
Determining whether an abnormality is displayed on the display means; determining whether a specific button is pressed; determining whether an abnormality code displayed on the display means is registered in the storage means; A parameter setting method in an inverter device, wherein the display unit is switched to a state in which a malfunction event corresponding to a storage unit is selected.

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