JP6574658B2 - Inverter device - Google Patents

Description

  Embodiments described herein relate generally to an inverter device.

  Many parameters are provided as setting items in the inverter device. For example, in order to use various adjustments and necessary functions, the user needs to change the parameter settings as appropriate. However, in the conventional inverter device, a plurality of parameter setting screens are grouped, for example, for each function, and are organized in a complicated hierarchical structure. For this reason, many key operations are required before reaching the parameter setting screen whose setting is to be changed, and it is necessary to search for a target parameter from a number of items.

  That is, for example, when changing the acceleration time of the motor driven by the inverter device, the user first switches from the standard mode to the parameter setting mode by performing a key operation on the operation panel of the inverter device. Then, on the screen switched to the setting mode, the parameter group to which the parameter “acceleration time” belongs is selected by key operation. Then, the parameter “acceleration time” is searched and selected from the selected group by key operation. Thereby, a setting screen for changing the setting of the parameter called acceleration time is displayed, and the user can change the set value of acceleration time.

JP-A-5-146194

  As described above, the conventional inverter device requires a lot of key operations and the time to search for the target parameter before reaching the parameter setting screen whose setting is to be changed, which is inconvenient.

  In view of this, an inverter device is provided that can reach the setting screen of a parameter whose setting is to be changed without requiring a large number of key operations or searching for parameters.

The inverter device of this embodiment includes number input screen display means and setting screen display means . As set item number consisting respectively allocated numbers in the setting item of several, the setting is set the communication number to be used to set the communication from outside the item, number input screen displaying means, said sets Displays a number entry screen that prompts entry of an item number . Setting screen display means, when the set item number is entered while displaying the number input screen, displays the setting screen of the setting item corresponding to the setting item number in real time.

The figure which shows the structural example of the inverter apparatus which concerns on 1st Embodiment. The figure which shows the example of a transition of the screen of an inverter device The figure which shows an example of the communication number list which is a list of the communication numbers allocated to various parameters The figure which shows the example of a transition of the screen of the conventional inverter apparatus The figure which shows an example of the number input screen which concerns on 2nd Embodiment The figure which shows an example of a change of the number input screen in case a different communication number is input in order The figure which concerns on 3rd Embodiment and shows an example of a change of the number input screen in case a different communication number is input in order. The figure which shows an example of the communication number list which is a list of the communication numbers allocated to various status items The figure which shows the structural example of the inverter apparatus which concerns on 4th Embodiment. The figure which shows the example of a transition of the screen of an inverter device

Hereinafter, a plurality of embodiments according to an inverter device will be described with reference to the drawings. In each embodiment, substantially the same elements are denoted by the same reference numerals, and description thereof is omitted.
(First embodiment)
An inverter device 10 illustrated in FIG. 1 includes a rectifier circuit 11, a smoothing capacitor 12, an inverter circuit 13, and the like. The rectifier circuit 11 rectifies the voltage input from the three-phase commercial AC power supply 14 and outputs a DC voltage. The smoothing capacitor 12 smoothes the DC voltage output from the rectifier circuit 11. The inverter circuit 13 converts the DC voltage smoothed by the smoothing capacitor 12 back to AC and supplies it to the motor 15. Thereby, the inverter apparatus 10 drives the motor 15 which is a load based on the AC power supply 14. The inverter device 10 includes a control unit 21, a storage unit 22, a communication unit 23, an operation unit 24, and the like.

  The control unit 21 is configured mainly with a microcomputer, and controls the overall operation of the inverter device 10. The storage unit 22 is configured by, for example, a non-volatile memory, and stores various information necessary for operating the inverter device 10. Information necessary for operating the inverter device 10 is, for example, set values of various parameters set via the operation unit 24. The communication unit 23 includes a communication module for wireless communication or wired communication, for example, and performs communication with the external device 16 other than the inverter device 10. The external device 16 is, for example, a personal computer or a server existing on the Internet.

  The operation unit 24 is composed of an operation panel having a liquid crystal display 25, for example. The operation unit 24 is provided with a plurality of operation keys 26 operated by the user. In this embodiment, as the operation keys 26, a RUN key 26a, a STOP key 26b, an OK key 26c, an ESC key 26d, a dial key 26e, and the like are provided. The RUN key 26a is an operation key for inputting start of driving of the motor 15. The STOP key 26b is an operation key for inputting stop of driving of the motor 15. The OK key 26c is an operation key for confirming the input content. The ESC key 26d is an operation key used for canceling the operation content or changing the screen of the liquid crystal display 25. The dial key 26e is an operation key that can be rotated, and the user can select items and increase / decrease setting values by rotating the dial key 26e.

  The control unit 21 virtually implements the key input acquisition unit 31, the main control unit 32, and the display output unit 33 by software by executing a control program. The key input acquisition unit 31, the main control unit 32, and the display output unit 33 may be realized by hardware, or may be realized by a combination of software and hardware.

  The key input acquisition unit 31 acquires information input by operating various operation keys 26 of the operation unit 24 by the user, and provides the information to the main control unit 32 as operation information. Based on the operation information obtained from the key input acquisition unit 31, the main control unit 32 performs various processes such as a display mode switching process of the liquid crystal display 25 and a parameter setting value changing process. The display output unit 33 displays various screens on the liquid crystal display 25 based on a command given from the main control unit 32.

  In the present embodiment, the main control unit 32 is configured to be able to switch the display mode of the liquid crystal display 25 to a standard mode, a setting mode, and a monitor mode. As illustrated in FIG. 2, in the standard mode, the standard mode screen G <b> 1 is displayed on the liquid crystal display unit 25. In the setting mode, a setting mode screen G2 is displayed on the liquid crystal display unit 25. In the monitor mode, a monitor mode screen G3 is displayed on the liquid crystal display unit 25.

  The standard mode is a standard display mode that is displayed by default when the inverter device 10 is powered on, for example. In this standard mode, the current drive frequency of the motor 15 and the like are displayed. In the standard mode, an alarm is displayed when an abnormality such as a trip occurs. The setting mode is a display mode for setting parameters. The monitor mode is a display mode for monitoring the state of the inverter device 10. The main control unit 32 sequentially switches between the standard mode, the setting mode, and the monitor mode in response to the operation of the ESC key 26d of the operation unit 24.

  The main control unit 32 further includes a number input screen display processing unit 41 and a setting screen display processing unit 42. The number input screen display processing unit 41 and the setting screen display processing unit 42 may be realized by software, hardware, or a combination of software and hardware.

  As illustrated in FIG. 2, the number input screen display processing unit 41 selects “0. Communication number access” on the setting mode screen G2 in a state where the display mode of the liquid crystal display 25 is switched to the setting mode. When the OK key 26c is operated, the number input screen G4 is displayed on the liquid crystal display 25. The number input screen G4 is a screen for prompting input of communication numbers respectively assigned to a plurality of parameters.

  When the number input screen G4 is displayed and the communication number is input to the number input screen G4 and the OK key 26c is operated, the setting screen display processing unit 42 sets the parameter corresponding to the communication number. The screen G5 is displayed. The user can change the setting value of the parameter by adjusting and confirming the value displayed on the setting screen G5 by appropriately operating the operation key 26.

  Here, the communication number will be described in detail. The communication number is an example of a setting item number. Basically, for example, a decimal number or a hexadecimal number is used when various parameters are set by the external device 16 by communication from the external device 16, for example, RS485 communication. It is a number consisting only of numbers. That is, various parameters of the inverter device 10 can be set by inputting a communication number from the external device 16. The user can confirm the communication number assigned to the parameter whose setting is to be changed, for example, by referring to the communication number list shown in FIG. The communication number list is attached to, for example, an instruction manual for the inverter device 10.

  The inverter device 10 of the present embodiment is configured such that the parameter setting value can be directly changed by the inverter device 10 alone using this communication number. That is, the user can directly reach the parameter setting screen G5 whose setting is to be changed by inputting and confirming the communication number on the number input screen G4.

  As illustrated in FIG. 4, in the conventional inverter device, the user cannot reach the setting screen for the parameter whose setting is to be changed without performing many key operations. That is, conventionally, the user selects and confirms the parameter group to which the parameter whose setting is to be changed belongs on the setting mode screen g2. Then, in the parameter group screen g4 displaying the parameter group belonging to the selected parameter group, the parameter whose setting is to be changed is searched for and selected from the plurality of parameters. Then, by selecting and confirming the parameter whose setting is to be changed, the parameter setting screen g5 can be finally reached. As described above, in the conventional inverter device, a large number of key operations are required before accessing the parameter setting screen g5 whose setting is to be changed, and it is necessary to search for a target parameter from a large number of items. It was.

  According to the inverter device 10 of the present embodiment, even when a plurality of parameter setting screens are grouped and organized in a hierarchical structure, a parameter setting screen whose setting is to be changed can be entered by inputting a communication number. Can be accessed directly. Therefore, it is not necessary to perform a large number of key operations until reaching the setting screen of a parameter whose setting is to be changed, and it is not necessary to search for a target parameter from a large number of items. Therefore, it is possible to provide the inverter device 10 that is easy to use for setting parameters.

(Second Embodiment)
As illustrated in FIG. 5, in this embodiment, when a communication number is input to the number input screen G4, the number input screen display processing unit 41 displays information Pi related to the parameter corresponding to the communication number as the number input screen G4. To display. In this case, the number input screen display processing unit 41 uses the parameter title “ACC”, the parameter function name “acceleration time”, and the set value of the parameter at the time of input of the communication number as the parameter Pi. “10.0 s” is displayed on the number input screen G4.

  According to the present embodiment, by inputting the communication number on the number input screen G4, the current status of the parameter can be confirmed on the number input screen G4. Therefore, it is possible to determine whether or not the setting value needs to be changed without shifting to the setting screen G5. In addition, when it can be determined that it is not necessary to change the setting value based on the current status of the parameter displayed on the number input screen G4, the operation for shifting to the setting screen G5 may not be performed wastefully. .

  The number input screen display processing unit 41 displays at least one of the parameter title, the parameter function name, and the parameter setting value at the time of inputting the communication number on the number input screen G4. It may be configured.

Further, as illustrated in FIG. 6, when a communication number that is not assigned to any parameter is input to the number input screen G4, the number input screen display processing unit 41 does not have the corresponding parameter. In this case, character information “no parameter” may be displayed on the number input screen G4. According to this configuration, it is possible to prevent the user from performing a useless operation to access the parameter setting screen even though the corresponding parameter does not exist.
Note that the means for indicating that the corresponding parameter does not exist is not limited to the display of the character information, and may be means for outputting voice information, light emission of a light emitter, or the like.

(Third embodiment)
As illustrated in FIG. 7, in this embodiment, the number input screen display processing unit 41 allocates a parameter when a communication number that is not allocated to any parameter is input to the number input screen G4. The communication number closest to the input communication number is automatically input to the number input screen G4. That is, for example, the communication number “0009” corresponding to the parameter “ACC: acceleration time”, the communication number “0010” not allocated to any parameter, and the communication number “0011” corresponding to the parameter “dEC: acceleration time”. Are sequentially input to the number input screen G4, the number input screen display processing unit 41 skips input of the communication number “0010” and automatically sets the next communication number “0011” to the number input screen G4. input.

  According to this embodiment, even if a communication number that is not assigned to any parameter is input, the input of the communication number is skipped, and only the input of the communication number that can change the parameter setting value is valid. Will be accepted. That is, since the useless communication number input is automatically invalidated, the parameter setting value can be changed efficiently.

  This embodiment is particularly effective when communication numbers that are not assigned to any parameter are consecutive. For example, when parameters are allocated to the communication numbers “0100” and “0200”, but parameters are not allocated to the communication numbers “0101” to “0199” between the communication numbers “0100” and “0200”. When the communication number “0101” is input, the communication number “0200” closest to the communication number “0101” among the communication numbers to which parameters are allocated is automatically input to the number input screen G4. That is, since the input of the communication numbers “0101” to “0199” that are not assigned to any parameter is skipped at once, the parameter setting value can be changed more efficiently.

(Fourth embodiment)
As illustrated in FIG. 8, the communication number is also assigned to a status item for monitoring the status of the inverter device 10. That is, the state of the inverter device 10 can be monitored in the external device 16 by inputting the communication number from the external device 16. In the present embodiment, the communication number is also used as an example of the state item number, and can be input on the number input screen G4.

  As illustrated in FIG. 9, in the present embodiment, the main control unit 32 further includes a state monitor screen display processing unit 43. The state monitor screen display processing unit 43 may be realized by software, hardware, or a combination of software and hardware. As illustrated in FIG. 10, when the communication number corresponding to the state item is input to the number input screen G4, the state monitor screen display processing unit 43 monitors the state corresponding to the communication number. Is displayed on the liquid crystal display 25. Thereby, the user can confirm the state of the inverter apparatus 10 corresponding to the input communication number in real time.

  According to the present embodiment, when it is desired to check the state of the inverter device 10, the communication number is input, and the monitor screen of the state item whose state is to be checked is directly traced without requiring a large number of key operations. Can arrive.

(Other embodiments)
The present embodiment is not limited to the above-described embodiment, and can be expanded or modified as follows, for example.
For example, the operation unit 24 may include a so-called up / down key instead of the dial key 26e. Further, the operation unit 24 may have a configuration in which a dial key 26e and an up / down key are provided.

  The operation unit 24 may be configured to include, for example, a 7-segment display instead of the liquid crystal display 25. In the case of a seven-segment display, it is difficult to display especially character information such as parameter titles and function names in an easy-to-read manner as compared with the liquid crystal display 25. Therefore, it is preferable that the operation unit 24 includes a liquid crystal display 25.

  The setting item number and the state item number are not limited to the communication number, and for example, a parameter number uniquely set for each parameter or a newly defined number may be used. In addition, according to each of the above-described embodiments using the communication number as the setting item number and the state item number, it is possible to effectively use the communication number set in advance for external communication, which is efficient. Further, the setting item number and the state item number are not limited to numbers consisting only of numbers, and may include elements other than numbers such as alphabets, for example.

  The above-described embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 10 is an inverter device, 41 is a number input screen display processing section (number input screen display means), 42 is a setting screen display processing section (setting screen display means), and 43 is a status monitor screen display processing section (status monitor screen). Display means).

Claims (4)

As a setting item number consisting of numbers assigned to a plurality of setting items, a communication number used when setting the setting item by communication from the outside is set.
Number input screen display means for displaying a number input screen for prompting input of the setting item number ;
If the setting item number is entered while displaying the number input screen, a setting screen display means for displaying a setting screen of the setting item corresponding to the setting item number in real time,
An inverter device comprising: 2. The inverter device according to claim 1 , wherein when a number that is not assigned to any of the setting items is input, the number input screen display unit inputs the setting item number that is closest to the number. In the number input screen, it is possible to input a state item number consisting of numbers assigned to a plurality of state items,
When the state item number is entered in the number input screen, according to claim 1 or 2 further comprising a status monitor screen displaying means for displaying the status monitor screen for monitoring the state corresponding to the state item number in real time Inverter device. The inverter device according to claim 3 , wherein a communication number used when the state is monitored by communication from outside is input as the state item number.

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