JP5324166B2 - Inverter device and extension panel device - Google Patents

Description

  The present invention relates to an inverter device provided with display means for displaying various data relating to operation, and an extension panel device provided with display means for communicating with the inverter device and displaying data similar to the above.

A panel that displays various data related to operation is usually built into the main body of the inverter device, but by connecting an extension panel device via a cable as an option, the inverter device can be separated from where it is installed. In some cases, an input operation or data display is performed at a certain position (see, for example, Patent Document 1).
Japanese Patent No. 3422904

  In general, the extension panel device as described above is a common configuration for different products (series) of inverter devices, and is positioned as an alternative to the display performed on the main body side. It is the same as the data displayed on the inverter side. Therefore, these methods of use have not left the range that has been assumed conventionally.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an inverter device that can realize a more flexible usage pattern by combination with an external device to be connected, and to the inverter device as the external device. An extension panel device is provided.

The inverter device of the present invention includes display means for displaying various monitor data relating to operation,
First display data selection means for selecting monitor data to be displayed on the display means in accordance with the setting of the display control parameter;
A communication means for communicating with an external device;
In response to a request from the external device, for transmitting monitoring data to be displayed on the display unit of the external device to the external device via the communication means, depending on the setting of the display control parameter, before Symbol first And a second display data selection unit configured to be able to select monitor data different from the monitor data selected by the one display data selection unit.
If comprised in this way, a 2nd display data selection means will be independent of the monitor data displayed on the display means of an inverter apparatus in the monitor data displayed on the display means of the said apparatus side according to the request | requirement from an external apparatus. Since the selection is made, different display can be performed between the display means of the inverter device and the display means of the external device.

An extension panel device according to the present invention is the external device that communicates with the inverter device according to claim 1,
A communication means configured to be able to communicate with a plurality of the inverter devices;
Control means for acquiring data related to the operation of each inverter device by communicating with a plurality of inverter devices via the communication means and sequentially displaying the data on the display means.
If comprised in this way, if an extension panel apparatus and several inverter apparatuses are connected, the data regarding the operation | movement of each inverter apparatus can be displayed sequentially in the display means of an extension panel apparatus.

  According to the inverter device of the present invention, it is possible to perform different display between the display unit of the own device and the display unit of the external device, so that the user can more diversely operate the inverter device by referring to both displays. Can grasp.

  According to the extension panel device of the present invention, by connecting to a plurality of inverter devices, data related to the operation of each inverter device can be sequentially displayed on the display means of the extension panel device. Operation information of a plurality of inverter devices can be grasped by the panel device.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a functional block diagram showing the configuration of the inverter device and the extension panel device with respect to the portion according to the gist of the present invention. The inverter device 1 includes a communication IC (communication means) 2, a CPU (microcomputer, first and second display data selection means) 3, a display unit (display means) 4, and the like.
The communication IC 2 is an IC that performs serial communication such as RS-232C / 485 or USB (Universal Serial Bus) with the extension panel device 7 (external device) connected via the connector 5 and the communication cable 6. The display unit 4 is, for example, an LCD (Liquid Crystal Display) panel. A control program, control parameters, and the like are stored in the ROM inside the CPU 3, and the CPU 3 controls the operation of the motor via an inverter main circuit (not shown) according to them, and displays information related to the operation control on the display unit 4. .

  On the other hand, the extension panel device 7 is also provided with a communication IC (communication means) 8, a CPU 9, a display unit (display means) 10, and the like, similarly to the inverter device 1. The CPU 9 of the extension panel device 7 communicates with the inverter device 1 connected via the connector 11 and transmits a display data request command. When receiving the display data request command from the extension panel device 7 side, the CPU 3 of the inverter device 1 selects information related to the operation control according to the command and transmits it to the extension panel device 7.

  Next, the operation of the present embodiment will be described with reference to FIGS. FIG. 2 is a flowchart showing a display data transfer process performed between the inverter device 1 and the extension panel device 7. The inverter device 1 and the extension panel device 7 start up in the “standard monitor display mode” when the inverter device 1 and the extension panel device 7 are activated by turning on the power or when the power reset is released. In this “standard monitor display mode”, the CPU 3 of the inverter device 1 follows the setting of the display control parameter, and the monitor display basic data to be displayed on its own display unit 4 and the monitor to be displayed on the display unit 10 of the extension panel device 7. Display base data is created (step S1).

  In the “standard monitor display mode”, data to be displayed on the display unit 4 of the inverter device 1 and data to be displayed on the display unit 10 of the extension panel device 7 can be independently selected by display control parameters. . The creation of the display base data in step S1 corresponds to selecting the control data to be displayed from various data according to the setting of the parameters.

  Subsequently, when the display data for the display unit 4 and the display data for the display unit 10 are created from each of the display basic data described above (step S2), the display data is output to the display unit 4 for display. (Step S3). The creation of display data here corresponds to processing the display base data into display data corresponding to the configuration of each display unit 4, 10.

  On the other hand, for the display data on the extension panel device 7 side, the extension panel device 7 transmits a display data request command to the inverter device 1 side (step S11), and when the request command is received, the display data is transmitted (step S11). S4). When the display data transmitted from the inverter device 1 is received, the CPU 9 of the extension panel device 7 outputs the display data to the display unit 10 for display (step S12).

  Then, if the display mode remains “standard monitor display mode” (step S6: YES), the process returns to step S1 and the above processing is repeated. On the other hand, when the user performs a key input operation on the inverter device 1 side (step S5) and the display mode transitions from the “standard monitor display mode” (step S6: NO), the display base data is obtained according to the key input. Create (step S7).

When the display mode is other than “standard monitor display mode”, the same content is displayed on the display unit 4 of the inverter device 1 and the display unit 10 of the extension panel device 7 as in the conventional configuration. That is, when display data is created from the common display base data created in step S7 (step S8), the display data is output to the display unit 4 for display (step S9). As for the display data on the extension panel device 7 side, the display data is transmitted when the display data request command transmitted by the extension panel device 7 is received as in the case of the “standard monitor display mode” (step S10). . Then, the process proceeds to step S5.
In the above processing, the processing on the extension panel device 7 side (steps S11 and S12) is the same as the processing performed by the conventional extension panel device.

  FIG. 1 shows an example in which different contents are displayed on the display unit 4 of the inverter device 1 and the display unit 10 of the extension panel device 7 in the “standard monitor display mode”. In this case, the display unit 4 displays the output frequency 60.0 Hz of the inverter device 1, and the display unit 10 displays the output current (Current) of the inverter device 1 as a percentage (97%) with respect to the rated current. .

  As described above, according to the present embodiment, the CPU 3 of the inverter device 1 sends the data to be displayed on the display unit 10 of the device 7 to the display unit 4 of the inverter device 1 in response to a request from the extension panel device 7. Since the selection is made independently of the data to be displayed, it is possible to perform different displays on the display units 4 and 10. Therefore, the user can grasp the operation information of the inverter device 1 more variously by referring to both displays.

(Second embodiment)
4 to 6 show a second embodiment of the present invention. The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof is omitted. Hereinafter, different parts will be described. 4 corresponding to FIG. 3 of the first embodiment, the extension panel device 21 (external device) of the second embodiment includes the CPU 9, the communication IC 8 and the connector 11 in the extension panel device 7 of the first embodiment. (Control means), communication IC 23 and connector 24 are replaced, and the extension panel device 21 is connected to two inverter devices 1A and 1B via a communication cable 25. That is, the extension panel device 21 can communicate with the two inverter devices 1A and 1B.

  Next, the operation of the second embodiment will be described with reference to FIGS. In FIG. 5 corresponding to FIG. 2, the processing on the inverter device 1A, 1B side is the processing of the first embodiment except steps S5 and S6, and it is assumed that the operation is continued in the “standard monitor display mode”. It is said. On the other hand, regarding the extension panel device 21 side, when communicating with a plurality of inverter devices, the communication destination is specified by one of two types of communication procedures.

(1) When the number of the inverter device to be communicated is set in advance as a parameter The user specifies the communication target in advance and sets the number (address) of the inverter device with the parameter. For example, when a maximum of 32 communication targets of the extension panel device 21 can be set, parameters are set within the range of the inverter device numbers “1 to 32”. In the case of FIG. 4, for example, device numbers “1, 2” are set. The CPU 22 of the extension panel device 21 identifies the inverter device to be communicated according to the device number preset in the memory, and performs communication sequentially.

(2) When specifying the inverter device number that the extension panel device 21 can communicate at the start of communication The processing in this case is shown in FIG. If the parameter setting is not performed as in (1), the CPU 22 of the extension panel device 21 sequentially designates the address of the inverter device that can be set (for example, 1 to 32), and transmits a display data request command to each. To do. Then, if there is a return of display data from the inverter device 1, it is received (step S 21), and the address of the inverter device 1 that has returned is stored in the memory (step S 22).

  Thereafter, for every inverter device 1 whose address is stored in the memory in step S22, a display data request command is transmitted in step S21, and each display data is received in step S22. Is received (step S23: YES), the display data of each inverter device 1 is sequentially switched and displayed on the display unit 10 (step S24).

  FIG. 6 shows an example in which the extension panel device 21 receives display data from the two inverter devices 1A and 1B (addresses are 1 and 2) and switches and displays them on the display unit 10. 6A and 6B show the case where the data of the inverter device 1A is displayed, and FIGS. 6C and 6D show the case where the data of the inverter device 1B is displayed. For example, the display is switched as shown in FIGS. 6A and 6B at intervals of 0.5 seconds in a cycle of 5 seconds, and the display is the display of the inverter device 1A having the address “1” in FIG. 6A. Data to be monitored is displayed in FIG. In this case, an output frequency of 60 Hz is displayed.

  The next 5-second period is also the display of the inverter device 1B at the address “2” in FIG. 6C, with the display switched as shown in FIGS. 6C and 6D at intervals of 0.5 seconds. In FIG. 6D, data to be monitored and an output frequency of 50 Hz are displayed. Since the inverter devices 1A and 1B are operating in the “standard monitor display mode”, the display units 4 (A and B) of the devices 1A and 1B have different data to be monitored as in the first embodiment. Is displayed (for example, output current).

As described above, according to the second embodiment, the extension panel device 21 communicates with the inverter devices 1A and 1B via the communication IC 23, and the CPU 22 acquires data related to the operation of the inverter devices 1A and 1B. Since the display unit 10 sequentially displays the information, the user can grasp the operation information of the inverter devices 1A and 1B by one extension panel device 21.
If the CPU 22 communicates with a plurality of inverter devices 1 in a predetermined order according to the parameter settings, the process for specifying the inverter device 1 to be communicated becomes unnecessary, and the communication can be performed quickly. Can start. On the other hand, if the CPU 22 identifies the inverter device 1 connected via the communication IC 23 and sequentially communicates with the identified inverter device 1, it is necessary to identify the communication target and set an address in advance. Disappear.

  Further, the CPU 22 communicates with the inverter devices 1A and 1B every predetermined time and sequentially switches and displays the data acquired from each inverter device 1 on the display unit 10, so that the user can display the display unit 10 of the extension panel device 21. The operation state of the inverter devices 1A and 1B can be monitored simply by referring to FIG.

The present invention is not limited to the embodiments described above or shown in the drawings, and the following modifications or expansions are possible.
The second embodiment may be applied when three or more inverter devices are connected.
In the second embodiment, when the user inputs an address of the inverter device 1 for which data is to be displayed on the extension panel device 21, the user communicates with the inverter device 1 and sends the acquired data to the display unit 10. It may be displayed.
In the second embodiment, the method of communicating with a plurality of inverter devices 1 is either a method in which parameters are set in advance or a method in which the extension panel device 21 specifies a communication target at the start of communication. You may just do it.

Furthermore, in the first or second embodiment, a plurality of types of data to be displayed on the display unit 10 of the extension panel device 21 may be set in advance, and these may be sequentially switched and displayed.
The display data is not limited to the output frequency and current value, but may be, for example, input voltage or output voltage, control mode, acceleration time, deceleration time, motor rotation direction, PWM carrier frequency, or the like.
The external device is not limited to the extension panel device, and may be any device that can communicate with the inverter device and includes display means.

The figure which is a 1st Example of this invention and shows an example in the case of displaying data on each display part of an inverter apparatus and an extension panel apparatus A flowchart showing display data transfer processing performed between the inverter device and the extension panel device Functional block diagram showing the configuration of the inverter device and the extension panel device with respect to the part according to the gist of the present invention FIG. 3 equivalent view showing a second embodiment of the present invention. 2 equivalent diagram The figure which shows an example in the case of switching and displaying the monitor data of two inverter apparatuses in the display part of an extension panel apparatus

Explanation of symbols

  In the drawings, 1 is an inverter device, 2 is a communication IC (communication means), 3 is a CPU (first and second display data selection means), 4 is a display unit (display means), and 7 is an extension panel device (external device). , 8 is a communication IC (communication means), 10 is a display unit (display means), 21 is an extension panel device (external device), 22 is a CPU (control means), and 23 is a communication IC (communication means).

Claims (4)

Display means for displaying various monitor data relating to operation;
First display data selection means for selecting monitor data to be displayed on the display means in accordance with the setting of the display control parameter;
A communication means for communicating with an external device;
In response to a request from the external device, for transmitting monitoring data to be displayed on the display unit of the external device to the external device via the communication means, depending on the setting of the display control parameter, before Symbol first An inverter device comprising: second display data selecting means configured to be able to select monitor data different from the monitor data selected by one display data selecting means. The external device that communicates with the inverter device according to claim 1,
A communication means configured to be able to communicate with a plurality of the inverter devices;
Through this communication means, communication with a plurality of inverter devices to obtain data related to the operation of each inverter device, comprising a control means for sequentially displaying on the display means ,
The extension panel device , wherein the control means communicates with a plurality of inverter devices in a predetermined order via the communication means . The external device that communicates with the inverter device according to claim 1,
A communication means configured to be able to communicate with a plurality of the inverter devices;
Through this communication means, communication with a plurality of inverter devices to obtain data related to the operation of each inverter device, comprising a control means for sequentially displaying on the display means,
3. The extension panel device according to claim 2, wherein the control means specifies an inverter device connected via the communication means, and sequentially communicates with the specified inverter device. It said control means via said communication means every predetermined time to communicate with the inverter device, the data obtained from each inverter apparatus according to claim 2, characterized in that to display sequentially switched on the display means or 3. The extension panel device according to 3 .

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