Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
  • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
  • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
  • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
  • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Definitions

• 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.
• the inverter device for controlling the AC motor at a variable speed, it is necessary to set various parameters to match the characteristics of the AC motor with the required specifications. Therefore, the inverter device is provided with a parameter setting device for setting various parameters, and the user can use the parameter setting device to set and change various parameters. Checking.
• Figure 1 shows the appearance of such a parameter setting device.
• This parameter setting device has a display unit 30, ESC key 31 1, DATAZENTER key 32, right shift key 33, UP key 34, DOWN key 35, RUN key 36, STOP key 37, MENU key 38, etc. And various operation units.
• the other keys without reference numerals are not particularly relevant to the description of the present invention, and the description thereof is omitted.
• parameters are set and confirmed by operating various keys 31 to 35. Then, by operating the RUN key 36, the inverter device is started, and the AC motor is controlled in accordance with the set parameters. By operating the STOP key 37, the inverter device stops. By operating the MENU key 38, various modes of the parameter device are switched.
• various parameters prepared corresponding to a plurality of functions of the invert device are displayed on the display unit 30 together with the parameter numbers.
• the operator of the inverter unit displays the parameter whose setting value is to be changed on the display. And change the setting value of the parameter.
• Inverter devices have many parameters that must be set. For example, if there are 14 1 types of parameters, Fig. 2 shows the function names of the parameters arranged in parameter number order. Fig. 3 shows a display example of parameter numbers and function explanation text. By operating the UP key 34 or the DOWN key 35, the parameter numbers and their function names are displayed as shown in Fig. 3. Scroll to display.
• An object of the present invention is to provide a parameter setting device with improved operability by reducing the number of operations required to change the setting of an inverter device parameter.
• a parameter setting device in an inverter device of the present invention displays a parameter number assigned to each of a plurality of parameters for driving the inverter device, and displays a parameter number corresponding to the parameter number.
• the parameter number is commonly assigned to a plurality of parameters having similar functions.
• a general function number which is a number
• a detailed function number which is a number assigned to each parameter in order to identify each parameter from among a plurality of parameters with the same general function number
• the general function number or the detailed function number can be changed independently.
• 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.
• the number of operations at the time of setting can be greatly reduced, and operability can be improved.
• the selection of the general function number and the detailed function number is switched by operating a specific key, and the selected number can be changed. You may make it become.
• the fact that the general function number or the detailed function number is selected is indicated by blinking of the display of the general function number or the detailed function number. You may do so.
• the parameter setting device in the other inverter device of the present invention when the general function number is selected, the general function name is displayed, and when the detailed function number is selected, the detailed function name is displayed.
• the function name may be displayed.
• FIG. 1 is a diagram showing the appearance of a conventional parameter setting device.
• FIG. 2 is a diagram showing the relationship between parameter numbers used in a conventional parameter setting device and the functions of each parameter.
• FIG. 3 is a diagram for explaining a parameter setting method in a conventional parameter setting device.
• FIG. 4 is a hierarchical diagram showing the configuration of parameter numbers in the parameter setting device according to one embodiment of the present invention.
• FIG. 5 is a diagram illustrating types of parameters in the parameter setting device according to the embodiment of the present invention.
• FIG. 6 is a diagram for explaining a method of determining a parameter: in the parameter setting device according to the embodiment of the present invention.
• FIG. 7 is a diagram for explaining a parameter setting method in the parameter setting device according to one embodiment of the present invention.
• FIG. 8 is a diagram for explaining a parameter setting method in the parameter setting device according to one embodiment of the present invention.
• FIG. 9 is a diagram illustrating a hierarchy of display functions of the parameter setting device according to the present embodiment.
• FIG. 10 is a diagram showing the connection of each message table.
• FIG. 11 is a diagram showing the structure of the message template in FIG.
• FIG. 12 is a diagram showing the structure of the constant table in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
• FIG. 4 is a hierarchical diagram showing the configuration of parameter numbers in the parameter setting device in the inverter device according to one embodiment of the present invention.
• the external appearance of the parameter setting device in the inverter device of this embodiment is the same as that shown in FIG. 1, and only the configuration of the parameter numbers and the operation method for displaying the parameter whose setting is to be changed are different from those of the conventional device. Is different.
• the 'parameter number' is composed of a general function number and a detailed function number which can be independently changed.
• An approximate 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 to which the same general function number is assigned. Values that can be set for each parameter are defined as shown in Fig. 5.
• the parameter number composed of the general function number and the detailed function number is displayed on the display unit 30 together with the function name and the value set for the parameter. And when the summary function number is selected When the UP key 34 or DOWN key 35 is operated, only the general function number changes. When the detailed function number is selected, when the UP key 34 or DOWN key 35 is operated, only the detailed function number changes.
• FIG. 6 (a) shows a transition diagram of the parameter number display when the UP key 34 or the DOWN key 35 is input while the general function number of the parameter number B1-01 is selected.
• Figure 6 (b) shows the 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. is there.
• the parameter setting device of the present embodiment flashes the currently selected function number among the general function number and the detailed function number.
• the present invention is not limited to such a case, and may indicate a function designation selected by another display method.
• "" is used to indicate that the number etc. is blinking. For example, when the approximate function number B1 is blinking, it is displayed as "B1".
• a right shift key is used to switch between selection of a general function number and selection of a detailed function number.
• Fig. 7 is a diagram illustrating the operation of switching between the selection of the general function number and the selection of the detailed function number.
• the DAT AZENTER key 32 is operated to shift to a mode for changing the set value.
• the blinking of the set value indicates that the set value can be changed.
• the set value is switched by operating the UP key 34 or the DOWN key 35 in this state. Then, it is possible to return to the original parameter display screen by completing the change of the set value normally or by operating the ESC key 31.
• Fig. 8 (a) shows the operation of the UP key 34 when the approximate function number B1 is blinking.
• the rough function number changes to B2
• the function name of the rough function number B2 ⁇ DC braking start frequency
• '' is displayed from the function name of the rough function number B1, ⁇ Operation mode selection.
• FIG. 8 (b) when the rough function number is B1 and the detailed function number 01 is blinking, operating the UP key 34 causes the detailed function number to change from 01 to 02.
• FIG. 9 shows a hierarchy of display functions of the parameter setting device of the present embodiment.
• the mode of the parameter setting device is switched by operating the MENU key 38.
• Operating the ME NU key 38 switches the mode between drive mode, quick program mode, advanced program mode, verify mode, and 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 an error content, an error history, and the like.
• the quick program mode is a mode for referencing and setting the minimum constants required for the test run of the inverter.
• the advanced program mode is a mode for referring and setting all constants of the inverter device.
• the verify mode is a mode in which only constants that have been changed from their initial values in the program or auto tuning mode are displayed.
• the auto tuning mode is a mode for automatically setting the motor constant.
• a message table is provided for each of the general function, the detailed function, the mode, and the like, and the message table stores message data and the like to be displayed on the display unit 30.
• Figure 10 shows the connection of these message tables.
• FIG. 11 shows the structure of the message table in FIG.
• an area indicated by “menut X t” is an area for storing message data to be displayed on the display unit 30, and “display” which is a function of the function number “A1 ⁇ 00” It stores message data in multiple languages so that the character string selected in "Language selection” can be displayed.
• the area indicated by “pr ev” 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.
• the area indicated by “go” 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 message tape pointer pointer "thhisme nu”. Press the UP key 34 to move the pointer "th e sme nu” to the message table indicated by "n ext", the DOWN key 35 to the "p rev”, and the DATAZENTER key 32 to the message table "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.
• the pointer currently set in "thi sme nu” is set on the stack before setting the pointer stored in the area indicated by "go" in "thismenu”. Store it.
• the data stored in the stack is set to “thi sme nu”, so that the message table before the DAT A / ENTER key 32 is pressed can be returned. it can.
• FIG. 12 shows the structure of the constant table in FIG.
• the constant table has a one-to-one correspondence with all constants, monitors, and other variables accessed through MODBUS.
• 7 is a table for storing detailed information of the data of FIG.
• the area indicated by “address of constant RAM” is an area for storing the address of the RAM in which the corresponding constant is stored.
• the area indicated by “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 of the constant setting.
• the area indicated by “information bits” is an area for storing bits indicating the size of a constant.
• the area indicated by “constant calculation address” is an area for storing the address of the function for constant calculation.
• the area indicated by the “scan RAM address” is an area for storing the scan RAM address for storing the value after the constant calculation.
• the area indicated by “display” is an area for storing the display digit of the constant and the decimal point position.
• the area indicated by "constant number” is an area for storing the constant number by numerical value.
• the area indicated by the "register number” is an area for storing the MODBUS register number.
• the area indicated by "access level” is an area for storing the access level for each control mode.
• the parameter setting device of the present embodiment when the operator of the inverter device intends to change the setting of a certain parameter ⁇ ; by first using the general function number, the general function of the parameter is roughly selected. After searching for parameters, search and display detailed detailed functions, and then change the parameter settings. 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 as compared with the conventional parameter setting device. , Operability can be improved

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Inverter Devices (AREA)
• Feedback Control In General (AREA)
• Control Of Electric Motors In General (AREA)
• Testing And Monitoring For Control Systems (AREA)
• Control Of Ac Motors In General (AREA)

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Citations (4)

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• 2000
  • 2000-07-13 JP JP2000212894A patent/JP4492769B2/ja not_active Expired - Lifetime
• 2001
  • 2001-07-02 WO PCT/JP2001/005692 patent/WO2002007298A1/ja active Application Filing

Patent Citations (4)

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