Selected devices and selected methods

Abstract

The present application provides a selection device (10) and a selection method for efficiently selecting an amplifier capable of driving a motor having a desired performance from the number of settings, price, or setting space of the amplifier. The present application is a selection device (10) for selecting a motor and an amplifier, the selection device (10) comprising: a storage section (16) that stores the performance of the motor for each of a plurality of motors, and stores at least one of the number of control axes, price, and setting space of the amplifier and the performance of the motor that can be driven for each of a plurality of amplifiers; an input section (14) for an operator to input selection information; a motor selection section (28) that selects a motor (α) that satisfies a condition; an amplifier selection section (30) that selects one or more amplifiers (β) that drive a required number of motors (α) that satisfy the condition in such a manner that the total number of settings, total price, or total setting space is minimized; and a display section (12) that displays the selected motor (α) and the selected amplifier (β).

Description

TECHNICAL FIELD

[0001] The present application relates to a selection device. More particularly, the present application relates to a selection device and a selection method of selecting a motor and an amplifier. BACKGROUND

[0002] There is a demand for a selection device that selects a motor having a desired performance for an operator and an amplifier capable of driving the motor. An example of such a selection device is disclosed in Japanese Patent Laid-Open No. 2019-58046. SUMMARY

[0003] In response to the demand for selecting an amplifier capable of driving a motor, the existing selection device selects an amplifier from the viewpoint of whether or not it corresponds to the performance of the motor.

[0004] Therefore, for example, even if the required number of motors is two, as long as the motor can be driven in terms of performance, there is a case where a single-axis amplifier is selected. In this case, the total number of amplifiers increases compared to the case where a multi-axis amplifier is used. In addition, although there is a viewpoint that the price and the installation space are sometimes valued by the operator in the use of the amplifier, the existing selection device does not select an amplifier considering these viewpoints.

[0005] For the above reasons, it is not easy for the operator to efficiently select an amplifier capable of driving a motor having a desired performance in terms of the number of amplifiers installed, the price, or the installation space, or the like.

[0006] Therefore, an object of the present application is to provide a selection device and a selection method that efficiently select an amplifier capable of driving a motor having a desired performance for an operator in terms of the number of amplifiers installed, the price, or the installation space, or the like.

[0007] One aspect of the present application is a selection device that selects a motor and an amplifier based on selection information including a condition related to a performance of the motor and a required number when an operator inputs the selection information, the selection device including: a storage section that stores the performance of the motor for each of a plurality of the motors and stores at least one of a number of control axes, a price, and a setting space of the amplifier and the performance of the motor that can be driven for each of a plurality of the amplifiers; an input section that inputs the selection information by the operator; a motor selection section that selects the motor that satisfies the condition by referring to the storage section; an amplifier selection section that selects one or more of the amplifiers that drive the required number of the motors that satisfy the condition in a manner that a total number, a total price, or a total setting space of the amplifiers is minimized by referring to the storage section; and a display section that displays the selected motor and the selected amplifier.

[0008] Another aspect of the present application is a selection method that selects a motor and an amplifier based on selection information including a condition related to a performance of the motor and a required number when an operator inputs the selection information, the selection method including: a storage step that stores the performance of the motor for each of a plurality of the motors and stores at least one of a number of control axes, a price, and a setting space of the amplifier and the performance of the motor that can be driven for each of a plurality of the amplifiers; an input step that inputs the selection information by the operator; a motor selection step that selects the motor that satisfies the condition based on information stored in the storage step; an amplifier selection step that selects one or more of the amplifiers that drive the required number of the motors that satisfy the condition in a manner that a total number, a total price, or a total setting space of the amplifiers is minimized based on information stored in the storage step; and a display step that displays the selected motor and the selected amplifier.

[0009] According to the aspect of the present application, it is possible to provide a selection device and a selection method that efficiently select an amplifier that can drive a motor having a performance desired by an operator in terms of a number of amplifiers, a price, or a setting space. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 A schematic configuration diagram of the selection device of the embodiment.

[0011] Figure 2 A configuration diagram of the selection table.

[0012] Figure 3 A table showing a configuration example of the first table.

[0013] Figure 4 A table showing a configuration example of Table 2.

[0014] Figure 5 A flowchart showing a flow of a selected method of the embodiment. DETAILED DESCRIPTION

[0015] Hereinafter, a selected device and a selected method of the present application will be described in detail with reference to the accompanying drawings, which illustrate a suitable embodiment. Figure 1

[0016] [EMBODIMENT]

[0017] Figure 1 A schematic configuration diagram of the selected device 10 of the embodiment.

[0018] The selected device 10 is an electronic device (computer) provided to easily construct a servo mechanism (servo system) equipped with a servo motor and a servo amplifier. The selected device 10 of the embodiment is equipped with a display section 12, an operation section (input section) 14, a storage section 16, and a calculation section 18. Hereinafter, these respective configurations will be described in order. Further, hereinafter, a "servo motor" will also be simply referred to as a "motor", and a "servo amplifier" will also be simply referred to as an "amplifier".

[0019] The display section 12 is a display device having a screen displaying information. The screen of the display section 12 is not limited, and is, for example, a liquid crystal screen. The display section 12 displays an input screen for inputting selected information described later or a selected result.

[0020] The operation section 14 is provided for an operator to input information to the selected device 10, and is constituted by, for example, a keyboard, a mouse, or a touch panel mounted on the screen of the display section 12. The operator can input selected information to the selected device 10 by operating the operation section 14.

[0021] The storage section 16 stores information. The storage section 16 is constituted by, for example, a RAM (Random Access Memory) or a ROM (ReadOnly Memory) or the like. The storage section 16 stores a prescribed selected program 20 and a prescribed selected table 22.

[0022] The selected program 20 is a program prescribed with a selected method of selecting a motor and an amplifier in accordance with selected information when an operator inputs selected information including conditions related to the performance of the motor and a required number. Details of the selected method are described later.

[0023] Figure 2 A configuration diagram of the selected table 22.

[0024] ​Selection Table 22 is a table that specifies various information required to perform the selection method. In this embodiment, Selection Table 22 includes Table 24 (first table) and Table 26 (second table), as described below.

[0025] Table 24 is a table specifying multiple motors and information indicating the performance of each motor. Information indicating motor performance includes, for example, the value of the motor's continuous rated current. However, the information indicating motor performance is not limited to this; it may also include the values ​​of the motor's continuous torque (continuous rated torque), maximum torque, continuous power (continuous rated power), maximum power, or maximum speed.

[0026] Figure 3 This is a table representing an example of the structure of Table 24 in the first table.

[0027] Figure 3 The example shows Table 24, which specifies the values ​​of continuous rated current, continuous torque, and maximum torque as information indicating the performance of a motor. In the structure of this Table 24, motor identification information indicating the names or management numbers of multiple motors A to E is specified in the left column, and the values ​​of continuous rated current, continuous torque, and maximum torque of each motor A to E are specified on the right side of the motor identification information.

[0028] according to Figure 3 For example, we know that motor A has a continuous rated current of 20A (Amperes), a continuous torque of 1Nm (Newton-meters), and a maximum torque of 5.3Nm. Furthermore, we know, for example, that motor C has a continuous rated current of 40A, a continuous torque of 4Nm, and a maximum torque of 15Nm.

[0029] Next, Table 26 will be explained. Table 26 is a table that specifies, for each of the plurality of amplifiers, at least one of the number of control shafts, price, and setting space, and information indicating the performance of the motor that can be driven.

[0030] The information specified in Table 26, which indicates the performance of the motor that can be driven, establishes a relationship between the multiple amplifiers specified in Table 26 and the multiple motors specified in Table 14. For example, Table 14 specifies the value of the continuous rated current as information indicating the motor's performance. In this case, Table 26 specifies the value of the continuous rated current as information indicating the performance of the motor that can be driven.

[0031] Figure 4 This is a table representing an example of the structure of Table 26.

[0032] exist Figure 4In the configuration of Table 26 shown in the example, amplifier identification information, indicating the name or management number of amplifiers A through E, is specified in the left column. Furthermore, the price of each amplifier A through E, its installation space (amplifier's external dimensions), and the value of its continuous rated current, which indicates the performance of the motor it can drive, are arranged and specified in the right column of the amplifier identification information. Regarding the column indicating the value of the continuous rated current, in... Figure 4 In its configuration, the number is specified to correspond to the number of control axes of the corresponding amplifier.

[0033] according to Figure 4 For example, regarding amplifier A, we know its price is P. A Set the space to W A / H A / D A (W: width, H: height, D: depth), and is an amplifier with one control axis capable of supplying a continuous rated current of 20A. Furthermore, for example, amplifier B is known to be a multi-axis amplifier with two control axes capable of supplying a continuous rated current of 20A.

[0034] Return to Figure 1 Next, the arithmetic unit 18 will be described. The arithmetic unit 18 processes information through arithmetic operations. The arithmetic unit 18 is composed of hardware such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit).

[0035] Furthermore, the arithmetic unit 18 of this embodiment includes a motor selection unit 28, an amplifier selection unit 30, another motor selection unit 32, another amplifier selection unit 34, a determination unit 36, and an output unit 38. These units are implemented by the arithmetic unit 18 reading and executing the selection program 20 described above.

[0036] When the operator inputs selection information into the selection device 10 (calculation unit 18) via the operation unit 14, the motor selection unit 28 selects the motor based on the input selection information via the reference storage unit 16.

[0037] Hereinafter, to distinguish the motor that meets the conditions of the selected information from other motors, it will also be referred to as "motor α".

[0038] Here, the term "selected information" is explained. Selected information includes at least the conditions related to the motor's performance and the required quantity. The conditions related to the motor's performance refer to specified values ​​or ranges of values, such as the continuous rated current mentioned earlier. The required quantity refers to the number of motors α that meet the conditions of the selected information, as desired by the operator.

[0039] Further, the following is referred to as "the required number" in short, and indicates "the required number of the motor α" unless otherwise specified.

[0040] The motor selection section 28 easily selects the motor α that satisfies the condition of the selection information by referring to the first table 24 of the storage section 16. For example, the condition of the selection information is "continuous rated current: 40 A". According to Figure 3 , the motor that satisfies the condition is the motor C. In this case, the motor selection section 28 selects the motor C as the motor α.

[0041] The amplifier selection section 30 selects one or more amplifiers that drive the motor α in such a manner that the total number of settings, the total price, or the total setting space of the amplifiers is minimized by referring to the storage section 16.

[0042] Hereinafter, in order to distinguish the amplifier that can drive the motor α from other amplifiers, it is also referred to as "amplifier β".

[0043] For example, the motor selection section 28 selects the motor D. According to Figure 3 , the continuous rated current of the motor D is 80 A. According to Figure 4 , the amplifiers that can drive the motor D are the amplifier D that has one control shaft that can supply 80 A and the amplifier E that has two control shafts that can supply 80 A.

[0044] Here, the required number is set to 2, and the total number of settings is included in the object of minimization in the selection of the amplifiers. In this case, if one amplifier E that has two control shafts is selected, the total number of settings is minimized to one. Thus, in this case, the amplifier selection section 30 selects one amplifier E as the amplifier β.

[0045] Further, as for which of the total number of settings, the total price, and the total setting space is minimized, it can be determined at the manufacturing design stage of the selection device 10, or it can be designated by the operator in advance before the selection. By allowing the operator to designate it, the operator is facilitated. In this case, the designation is included in the selection information.

[0046] Further, in the case of minimizing the total setting space, the amplifier selection section 30 can minimize the volume of the amplifier β (the total volume of the amplifiers β) or the area of the amplifier β with respect to the setting surface (the total area of the amplifiers β) in the case where the amplifier β is set on the setting surface such as a floor. In this case, as for which of the volume and the area is minimized, it can be designated by the operator.

[0047] Further, the amplifier selecting section 30 can select the amplifier β in accordance with a priority level determined in advance with respect to the total number of settings, the total price, and the total setting space. For example, in a case where the priority level of the total number of settings is higher than the priority level of the total price, the amplifier selecting section 30 first selects the amplifier β (combination of amplifiers β) that drives the required number of motors a in a manner that minimizes the total number of settings and the total number of control axes. Then, the amplifier selecting section 30 further selects the amplifier β (combination of amplifiers β) that drives the required number of motors a in a manner that minimizes the total price and the total number of control axes.

[0048] With respect to the priority level, it can be determined at the manufacturing design stage of the selecting device 10, or it can be designated by the operator via the operation section 14. By allowing the operator to designate the priority level, the operator is facilitated. In this case, the designation is included in the selection information.

[0049] The amplifier selecting section 30 selects one or more amplifiers β as described above.

[0050] The other motor selecting section 32 selects another motor whose power is suppressed compared to the motor a by referring to the storage section 16. More specifically, the other motor selecting section 32 selects another motor whose continuous torque or maximum torque is closest to that of the motor a and is smaller than that of the motor a.

[0051] Hereinafter, in order to distinguish the above-described "another motor" from other motors including the motor a, it is also referred to as "motor a'".

[0052] With respect to which one of the continuous torque and the maximum torque is used as a reference for selecting the motor a', it can be determined at the manufacturing design stage of the selecting device 10, or it can be designated by the operator in advance before the selection. By allowing the operator to designate the reference, the operator is facilitated. In this case, the designation is included in the selection information.

[0053] The other motor selecting section 32 easily selects the motor a' by referring to the first table 24 of the storage section 16. For example, the first table 24 is as shown in Table 1. Figure 3 In a case where the other motor selecting section 32 selects the motor a' with the continuous torque as a reference and the motor selecting section 28 has selected the motor D as the motor a, the motor C (continuous torque: 4 Nm) whose continuous torque is closest to that of the motor D (continuous torque: 8 Nm) and is smaller than that of the motor D is selected as the motor a' in accordance with Table 1. Figure 3

[0054] ​Further, the other motor selection section 32 can select, as the motor α', another motor which is smaller than the motor α in terms of continuous power or maximum power, and which is closest, and is not limited to the one which is smaller than the motor α in terms of continuous rated torque or maximum torque. In this case, the motor α' can be selected in accordance with the continuous rated power or the maximum power of the motor by specifying the continuous power or the maximum power of the motor as desired in the selection table 22.

[0055] The other amplifier selection section 34 selects one or more amplifiers which can drive the motor α' in such a manner that the total number of settings, the total price, or the total setting space of the amplifiers becomes the smallest by referring to the storage section 16.

[0056] Hereinafter, in order to distinguish the amplifier which can drive the motor α' from other amplifiers, it is also referred to as "amplifier β'".

[0057] The selection by the other amplifier selection section 34 can be performed in the same manner as the selection of the amplifier β by the amplifier selection section 30. For example, the other motor selection section 32 selects the motor A. According to Figure 3 , the continuous rated current of the motor A is 20 A. Further, according to Figure 4 , the amplifiers which can drive the motor A are the amplifier A and the amplifier B.

[0058] Here, the required number is set to 2, and the total number of settings is included in the object of minimization in the selection of the amplifiers. In this case, the other amplifier selection section 34 selects the amplifier B which has the total number of settings of 1 as the amplifier β' in such a manner that the total number of settings becomes the smallest.

[0059] Further, there can be a case where the amplifier β' selected by the other amplifier selection section 34 results in the same amplifier as the amplifier β selected by the amplifier selection section 30.

[0060] The determination section 36 determines whether or not the change of the amplifier β to the amplifier β' makes the total number of settings, the total price, or the total setting space smaller by referring to the storage section 16.

[0061] Hereinafter, the determination by the determination section 36 is exemplified with reference to Figure 3 and Figure 4 . For example, in a case where the total number of settings is included in the object of minimization in the selection of the amplifiers, the motor C is selected as the motor α, and the amplifier C is selected as the amplifier β. Further, the required number is 2. The amplifier C is a single-axis amplifier, and thus the total number of settings when two motors C are driven is 2.

[0062] Further, the motor B is selected as the motor α', and the amplifier B is selected as the amplifier β' in the same case. The amplifier B is a multi-axis amplifier which has two control axes, and thus it is sufficient that the total number of settings when two motors B are driven is 1.

[0063] In this case, the determination section 36 determines that the amplifier β is changed to the amplifier β' so that the total number of settings is further reduced (before the change: 2, after the change: 1).

[0064] The output section 38 outputs information indicating the motor α and the amplifier β as a selection result to the display section 12. Further, in the case where the determination section 36 determines that the amplifier β is changed to the amplifier β' so that the total number of settings, the total price, or the total setting space becomes smaller, this is further output (information indicating the motor α' and the amplifier β').

[0065] The above is a configuration example of the selection device 10 of the present embodiment. Next, the selection method performed by the above selection device 10 will be described.

[0066] Figure 5 A flowchart for illustrating the flow of the selection method of the present embodiment.

[0067] As described above, the selection method of the present embodiment is a method of selecting a motor and an amplifier in accordance with selection information. As Figure 5 illustrated, the selection method includes a storage step (S1), an input step (S2), a motor selection step (S3), an amplifier selection step (S4), and a display step (S8). Further, the selection method of the present embodiment includes another motor selection step (S5), another amplifier selection step (S6), and a determination step (S7) performed between the amplifier selection step (S4) and the display step (S8).

[0068] The storage step is a step of storing the performance of a motor for each of a plurality of motors, and storing at least one of the number of control axes, the price, and the setting space of an amplifier and the performance of a motor that can be driven for each of a plurality of amplifiers. These pieces of information are stored in the storage section 16 as information constituting the selection table 22.

[0069] As described above, the information stored as the performance of a motor in the storage step is not limited, and is, for example, the values of the continuous rated current, the continuous torque, the maximum torque, the continuous power, the maximum power, and the maximum rotational speed of a motor. In the case where the selection method like the present embodiment includes another amplifier selection step and a determination step, at least one of the continuous torque, the maximum torque, the continuous power, and the maximum power is stored.

[0070] The input step is a step in which the operator inputs the selected information. The input is an operation on the selected device 10 (the arithmetic unit 18) via the operation section 14. As described above, the selected information includes a designation of the conditions specified by the operator with respect to the performance of the motor and the required number of designations. In addition, a designation of which of the total number, the total price, and the total installation space is to be minimized or a designation of the priority of minimization can also be included in the selected information in the selection of the amplifier.

[0071] The motor selection step is a step of selecting a motor α that satisfies the conditions of the selected information input in the input step, based on the information stored in the storage step. The motor selection step is executed by the motor selection section 28. The motor selection section 28 easily selects the motor α by referring to the first table 24.

[0072] The amplifier selection step is a step of selecting one or more amplifiers β that drive the motor α in such a manner that the total number, the total price, or the total installation space is minimized, based on the information stored in the storage step. The amplifier selection step is executed by the amplifier selection section 30. The amplifier selection section 30 easily selects the amplifier β by referring to the second table 26. At this time, if the designation of the object of minimization and the designation of the priority are included in the selected information, the amplifier selection section 30 selects the amplifier β in accordance therewith.

[0073] The other motor selection step is a step of selecting another motor α' that is smaller than the motor α in terms of the continuous torque, the maximum torque, the continuous power, or the maximum power and is closest to the motor α, based on the information stored in the storage step. The other motor selection step is executed by the other motor selection section 32. The other motor selection section 32 easily selects the motor α' by referring to the first table 24. At this time, if a designation of which of the continuous torque, the maximum torque, the continuous power, and the maximum power is to be the reference when selecting the motor α', is included in the selected information, the other motor selection section 32 selects the motor α' in accordance therewith.

[0074] The other amplifier selection step is a step of selecting an amplifier β' that can drive the motor α', in such a manner that the total number, the total price, or the total installation space is minimized. The other amplifier selection step is executed by the other amplifier selection section 34. The other amplifier selection section 34 easily selects the amplifier β' by referring to the second table 26. At this time, if the designation of the object of minimization and the designation of the priority are included in the selected information, the other amplifier selection section 34 selects the amplifier β' in accordance therewith.

[0075] The determination step is a step of determining whether or not changing the amplifier β to the amplifier β' makes the total number, the total price, or the total installation space smaller, based on the information stored in the storage step. The determination step is executed by the determination section 36.

[0076] The display step is a step of displaying the motor α and the amplifier β on the display section 12. Further, in a case where it is determined in the determination step that the motor α is changed to the motor α' and the amplifier β is changed to the amplifier β' so that the total number of settings, the total price, or the total setting space becomes smaller, this content is further displayed in the display step. The display step is executed by the output section 38.

[0077] The above is a configuration example of the selection method executed by the selection device 10 of the present embodiment. As described above, according to the present embodiment, a selection device 10 and a selection method that efficiently select an amplifier β capable of driving a motor α having a performance desired by an operator from the number of settings, the price, or the setting space of the amplifier, and the like are provided.

[0078] That is, the operator can easily grasp the motor α having a performance desired by the operator and one or more amplifiers β (combinations of a plurality of amplifiers β) capable of driving the motor α by the selection device 10 and the selection method of the present embodiment. Furthermore, one or more amplifiers β are selected in a manner in which the total number of settings, the total price, or the total setting space is minimized. Thus, the operator can easily construct an efficient servo mechanism.

[0079] Further, in the selection device 10 and the selection method of the present embodiment, the motor α' and the amplifier β' that drive the motor α' are presented to the operator according to the result of the determination in the determination step.

[0080] The motor α' presented to the operator is a motor in which the torque or the power is suppressed compared to the motor α selected according to the conditions of the selection information, and does not have a performance originally desired by the operator. However, in a case where the motor α' and the amplifier β' are used, the operator can maintain the required number of motors on one hand, and make the total number of settings, the total price, or the total setting space of the amplifiers smaller than in a case where the motor α and the amplifier β are used on the other hand.

[0081] Thus, by presenting the motor α' and the amplifier β' to the operator, the selection device 10 can contribute to the exploration of the operator when constructing a more efficient servo mechanism from the viewpoint of the total number of settings, the total price, or the total setting space of the amplifiers.

[0082] [Modified Example]

[0083] The above describes the embodiments in the form of one example of the present application. Various modifications or improvements can be added to the embodiments. Further, according to the description of the claims, it is clear that such a form in which modifications or improvements are added can be included in the technical scope of the present application.

[0084] (Modified Example 1)

[0085] The other motor selection section 32 and the other amplifier selection section 34 described in the embodiments can be omitted from the configuration of the selection device 10 without selecting the motor α' and the amplifier β'. Thus, the configuration of the selection device 10 can be made simpler.

[0086] [Invention obtained from the embodiments]

[0087] The following description can be understood from the above embodiments and modifications.

[0088] <1st Invention>

[0089] A selection device (10) that selects a motor and an amplifier in accordance with selection information including a condition related to a performance of the motor and a required number when an operator inputs the selection information, the selection device (10) comprising: a storage section (16) that stores the performance of the motor for each of a plurality of the motors and stores at least one of a number of control axes, a price, and a setting space of the amplifier and the performance of the motor that can be driven for each of a plurality of the amplifiers; an input section (14) through which the operator inputs the selection information; a motor selection section (28) that selects the motor (α) that satisfies the condition by referring to the storage section (16); an amplifier selection section (30) that selects one or more of the amplifiers (β) that drive the required number of the motors (α) that satisfy the condition in a manner that minimizes a total number, a total price, or a total setting space of the amplifiers by referring to the storage section (16); and a display section (12) that displays the selected motor (α) and the selected amplifier (β).

[0090] Thus, a selection device (10) that efficiently selects an amplifier (β) that drives a motor (α) having a performance desired by an operator in terms of a total number, a price, or a setting space of the amplifier is provided.

[0091] Also, the selection information can include a designation of one of the total number, the total price, and the total setting space and be stored in the storage section (16), and the amplifier selection section (30) can select the amplifier (β) in accordance with the designation. Thus, the operator is facilitated.

[0092] Also, the amplifier selection section (30) can select the amplifier (β) in accordance with a priority determined in advance for the total number, the total price, and the total setting space. Thus, the operator is facilitated.

[0093] Also, the selected information can further include a designation of the priority, and the amplifier selecting section (30) selects the amplifier (β) in accordance with the designation. Thereby, the operator is facilitated.

[0094] Also, the storage section (16) can further store at least one of a continuous rated torque, a maximum torque, a continuous rated power, and a maximum power of each of a plurality of the motors, and the selecting device (10) can further include: another motor selecting section (32) that selects another motor (α') whose continuous rated torque, maximum torque, continuous rated power, or maximum power is smaller than the motor (α) selected by the motor selecting section (28) and closest by referring to the storage section (16); another amplifier selecting section (34) that selects one or more amplifiers (β') that drive the required number of the another motor (α') in such a manner that the total number of settings, the total price, or the total setting space becomes the smallest by referring to the storage section (16); and a determination section (36) that determines whether or not changing the amplifier (β) selected by the amplifier selecting section (30) to the amplifier (β') selected by the another amplifier selecting section (34) makes the total number of settings, the total price, or the total setting space smaller by referring to the storage section (16), and the display section (12) displays this in the case where changing the motor (α) selected by the motor selecting section (28) to the another motor (α') and changing the amplifier (β) selected by the amplifier selecting section (30) to the amplifier (β') selected by the another amplifier selecting section (34) makes the total number of settings, the total price, or the total setting space smaller. Thereby, the operator is facilitated.

[0095] <2nd Invention>

[0096] A selection method for selecting a motor and an amplifier based on selection information inputted by an operator when the operator inputs selection information including conditions related to performance of the motor and a required number, the selection method including: a storage step of storing performance of the motor for each of a plurality of the motors, and at least one of a number of control axes, a price, and a setting space of the amplifier and performance of the motor that can be driven for each of a plurality of the amplifiers; an input step of inputting the selection information by the operator; a motor selection step of selecting the motor (a) that satisfies the conditions based on information stored in the storage step; an amplifier selection step of selecting one or more of the amplifiers (β) that drive the required number of the motors (a) that satisfy the conditions in a manner that a total number of settings, a total price, or a total setting space of the amplifiers is minimized based on information stored in the storage step; and a display step of displaying the selected motor (a) and the selected amplifier (β).

[0097] Thus, a selection method for efficiently selecting an amplifier (β) that can drive a motor (a) having performance desired by an operator in terms of a number of settings, a price, or a setting space of the amplifier is provided.

[0098] Also, the selection information can further include designation of one of the total number of settings, the total price, and the total setting space and be one of the information stored in the storage step, and the amplifier can be selected based on the designation in the amplifier selection step. Thus, convenience for the operator is sought.

[0099] Also, the amplifier (β) can be selected based on a predetermined priority of the total number of settings, the total price, and the total setting space in the amplifier selection step. Thus, convenience for the operator is sought.

[0100] Also, the selection information can further include designation of the priority, and the amplifier (β) can be selected based on the designation in the amplifier selection step. Thus, convenience for the operator is sought.

[0101] Also, in the storing step, at least one of a continuous rated torque, a maximum torque, a continuous rated power, and a maximum power of the motor can be further stored for each of the plurality of motors, and the selected method further includes: another motor selecting step of selecting another motor (α') which is closest and smaller than the motor (α) selected in the motor selecting step in terms of the continuous rated torque, the maximum torque, the continuous rated power, or the maximum power based on the information stored in the storing step; another amplifier selecting step of selecting one or more amplifiers (β') for driving the another motor (α') in the required number in such a manner that the total number of settings, the total price, or the total setting space of the amplifiers (β') becomes minimum based on the information stored in the storing step; and determining step of determining whether or not the amplifier (β) selected in the amplifier selecting step is changed to the amplifier (β') selected in the another amplifier selecting step makes the total number of settings, the total price, or the total setting space smaller based on the information stored in the storing step, and in the displaying step, this is displayed in a case where the motor (α) selected in the motor selecting step is changed to the another motor (α'), the amplifier (β) selected in the amplifier selecting step is changed to the amplifier (β') selected in the another amplifier selecting step, and the total number of settings, the total price, or the total setting space becomes smaller. Thus, the operator is facilitated.

Claims

1. A selection device (10) that selects a motor and an amplifier in accordance with selection information including a condition related to a performance of the motor and a required number when an operator inputs the selection information, the selection device (10) characterized by comprising: a storage section (16) that stores, for each of a plurality of the motors, the performance of the motor, and stores, for each of a plurality of the amplifiers, at least one of a number of control axes, a price, and a setting space of the amplifier and the performance of the motor that can be driven; an input section (14) through which the operator inputs the selection information; a motor selection section (28) that automatically selects the motor (α) that satisfies the condition by referring to the storage section; an amplifier selection section (30) that selects one or more of the amplifiers (β) that drive the required number of the motors that satisfy the condition in such a manner that a total number of settings, a total price, or a total setting space of the amplifiers is minimized by referring to the storage section; and a display section (12) that displays the selected motor and the selected amplifier.

2. The selection device according to claim 1, characterized in that: the selection information further includes a designation of one of the total number of settings, the total price, and the total setting space and is a designation of one stored in the storage section, and the amplifier selection section selects the amplifier in accordance with the designation.

3. The selection device according to claim 1, characterized in that: the amplifier selection section selects the amplifier in accordance with a priority level that is predetermined for the total number of settings, the total price, and the total setting space.

4. The selection device according to claim 3, characterized in that: the selection information further includes a designation of the priority level, and the amplifier selection section selects the amplifier in accordance with the designation.

5. The selection device according to any one of claims 1 to 4, characterized in that: the storage section further stores, for each of a plurality of the motors, at least one of a continuous rated torque, a maximum torque, a continuous rated power, and a maximum power of the motor, the selection device further comprises: another motor selection section (32) that selects another motor (α') that is closest to the motor selected by the motor selection section in terms of at least one of the continuous rated torque, the maximum torque, the continuous rated power, or the maximum power by referring to the storage section; another amplifier selection section (34) that selects one or more of another amplifier (β') that drives the required number of the another motor in such a manner that the total number of settings, the total price, or the total setting space of the amplifier is minimized by referring to the storage section; and a determination section (36) that determines whether changing the amplifier selected by the amplifier selection section to the another amplifier selected by the another amplifier selection section makes the total number of settings, the total price, or the total setting space smaller by referring to the storage section. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ In a case where the motor selected by the motor selection section is changed to the other motor, the amplifier selected by the amplifier selection section is changed to the other amplifier selected by the other amplifier selection section so that the total number of settings, the total price, or the total setting space becomes smaller, the display section displays this.

6. A selection method of selecting a motor and an amplifier based on selection information including a condition related to a performance of the motor and a required number of motors when an operator inputs the selection information, characterized by comprising: a storage step of storing the performance of the motor for each of a plurality of the motors and at least one of a number of control axes, a price, and a setting space of the amplifier and the performance of the motor that can be driven for each of a plurality of the amplifiers; an input step of inputting the selection information by the operator; a motor selection step of automatically selecting the motor (a) that satisfies the condition based on the information stored in the storage step; an amplifier selection step of selecting one or more of the amplifiers (β) that drive the required number of the motors that satisfy the condition in such a manner that a total number of settings, a total price, or a total setting space of the amplifiers is minimized based on the information stored in the storage step; and a display step of displaying the selected motor and the selected amplifier.

7. The selection method according to claim 6, characterized in that: the selection information further includes a designation of one of the total number of settings, the total price, and the total setting space and is a designation of one stored in the storage step, and the amplifier is selected in the amplifier selection step in accordance with the designation.

8. The selection method according to claim 6, characterized in that: a priority is predetermined for the total number of settings, the total price, and the total setting space, and the amplifier is selected in the amplifier selection step in accordance with the priority.

9. The selection method according to claim 8, characterized in that: the selection information further includes a designation of the priority, and the amplifier is selected in the amplifier selection step in accordance with the designation.

10. The selection method according to any one of claims 6 to 9, characterized in that: at least one of a continuous rating torque, a maximum torque, a continuous rating power, and a maximum power of the motor is further stored for each of the plurality of the motors in the storage step, and the selection method further comprises: a further motor selection step of selecting a further motor (a') whose continuous rating torque, maximum torque, continuous rating power, or maximum power is smaller than the motor selected in the motor selection step and is closest to the motor selected in the motor selection step based on the information stored in the storage step.

11. The selection method according to claim 10, characterized in that: the further motor is selected in the further motor selection step in accordance with the priority.

12. The selection method according to any one of claims 6 to 11, characterized in that: the selection information further includes a designation of the priority, and the further motor is selected in the further motor selection step in accordance with the designation.

13. The selection method according to any one of claims 6 to 12, characterized in that: the selection information further includes a designation of the performance of the motor, and the motor is selected in the motor selection step in accordance with the designation.

14. The selection method according to any one of claims 6 to 13, characterized in that: the selection information further includes a designation of the performance of the motor, and the further motor is selected in the further motor selection step in accordance with the designation. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ another amplifier selection step of selecting one or more another amplifiers (β') that drive the another motor of the required number in such a manner that the total number of settings, the total price, or the total setting space of the amplifiers becomes minimum based on the information stored in the storage step; and a determination step of determining whether or not changing the amplifiers selected in the amplifier selection step to the another amplifiers selected in the another amplifier selection step makes the total number of settings, the total price, or the total setting space smaller based on the information stored in the storage step, in the display step, in a case where changing the motor selected in the motor selection step to the another motor, and changing the amplifiers selected in the amplifier selection step to the another amplifiers selected in the another amplifier selection step makes the total number of settings, the total price, or the total setting space smaller, this is displayed.

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