RELATED APPLICATIONS

The present application claims priority to Japanese Application Number 2019-135558, filed Jul. 23, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety.

FIELD

The present invention relates to a servo amplifier selection device and a servo amplifier selection computer program that select a cable for power transmission used in a system for driving a motor, for example.

BACKGROUND

A system for driving a motor such as a servo motor or a spindle motor is required to include a power supply facility capable of supplying sufficient power needed for the motor in order to appropriately drive the motor. However, it becomes more difficult to select an appropriate power supply facility as the number of motors to be driven is increased or a type of motors to be driven is increased. Thus, a technique for calculating the number of necessary amplifiers, based on motor model information needed for constructing a desired system, and selecting a necessary amplifier has been proposed (for example, see Japanese Unexamined Patent Publication (Kokai) No. 2019-57962).

SUMMARY

A facility that supplies power to a motor includes not only an amplifier, but also a cable being connected between a power source and the amplifier or between the amplifier and a motor, and used for transmitting power (hereinafter, also referred to as a power cable). Therefore, in a system for driving a motor, it is required to select an appropriate power cable.

In one aspect, an object is to provide a cable selection device capable of selecting an appropriate power cable in a system for driving a motor.

According to one embodiment, a servo amplifier selection device is provided. The servo amplifier selection device includes: a memory configured to store specifications of each of a plurality of amplifiers capable of supplying power to a motor; and a processor configured to select, based on the number of one or more designated motors, specifications of each of the one or more designated motors, and the specifications of each of the plurality of amplifiers, a combination of amplifiers connected to the one or more designated motors from the plurality of amplifiers in such a way that each of the one or more designated motors is connected to any of the plurality of amplifiers; and select, for each amplifier included in the combination of the amplifiers, specifications of a power cable that connects between the amplifier and a power source in such a way as to satisfy a supply of power needed for the motor connected to the amplifier among the one or more designated motors.

According to another embodiment, a non-transitory recording medium that stores a servo amplifier selection computer program is provided. The servo amplifier selection computer program causes a computer to execute: selecting, based on the number of one or more designated motors, specifications of each of the one or more designated motors, and specifications of each of a plurality of amplifiers capable of supplying power to the one or more designated motors, being stored in a memory, a combination of amplifiers connected to the one or more designated motors from the plurality of amplifiers in such a way that each of the one or more designated motors is connected to any of the plurality of amplifiers; and selecting, for each amplifier included in the combination of the amplifiers, specifications of a power cable that connects between the amplifier and a power source in such a way as to satisfy a supply of power needed for the motor connected to the amplifier among the one or more designated motors.

According to one aspect, an appropriate power cable in a system for driving a motor can be selected.

