Motor and Amplifier Selection for Fewer Servo Installations
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Solution Overview
Problem
Existing selection devices for motors and amplifiers do not efficiently select amplifiers based on the desired performance of motors, considering factors such as the number of installations, price, and installation space.
Innovation Solution
A selection device and method that allow operators to input selection information, including the necessary number and performance conditions of motors, to select motors and amplifiers based on stored performance data, minimizing total installations, price, or installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single-axis amplifier is selected based solely on motor performance compatibility, then the motor can be driven according to performance requirements, but the total number of amplifier installations increases
Solution Approach 1:
The patent merges multiple single-axis amplifier functions into a single multi-axis amplifier that can control multiple motors simultaneously. The selection device calculates whether multiple motors can share one amplifier by checking if the sum of their rated currents does not exceed the amplifier's maximum output current, thereby reducing the total number of amplifier installations while maintaining motor driving capability.
Solution Approach 2:
The patent makes the amplifier universal by enabling it to control multiple motors across different axes. The multi-axis amplifier is designed with the capability to output control signals to multiple motors simultaneously, allowing one amplifier to perform the function of multiple single-axis amplifiers while reducing installation quantity.
2Reliability
If multiple amplifiers are selected to meet motor performance requirements, then each motor can be driven independently, but the total price and installation space increase
Solution Approach 1:
The patent combines multiple amplifier functions into a single multi-axis amplifier unit. By calculating the total rated current of multiple motors and comparing it with the amplifier's maximum output current, the system determines whether motors can share one amplifier, thereby reducing the total installation space required for amplifiers while maintaining independent motor control capability.
3Reliability
If multiple amplifiers are selected to meet motor performance requirements, then each motor can be driven independently, but the total price increases
Solution Approach 1:
The patent merges the function of multiple amplifiers into a single multi-axis amplifier. The selection device calculates whether multiple motors can be driven by one amplifier by summing their rated currents and comparing with the amplifier's maximum output current. This approach reduces the total number of amplifiers needed, thereby lowering the total price while maintaining motor driving capability.
4Quantity of substance
If a multi-axis amplifier is selected to reduce installation数量, then the total number of installations decreases, but the selection complexity increases
Solution Approach 1:
The patent implements a selection device that automatically performs the complex calculation and selection process. The device takes motor specifications and amplifier parameters as input, automatically calculates whether motors can share amplifiers by comparing total rated currents with maximum output currents, and provides selection recommendations. This self-service approach simplifies the user's task while handling the computational complexity internally.
Solution Approach 2:
The patent replaces manual amplifier selection (mechanical/process-based) with an automated calculation system. The selection device uses computational methods to evaluate multiple selection scenarios, calculate installation quantities, prices, and spaces, and provide optimized recommendations, thereby reducing selection complexity for users.
Data Source
AI summary
Provided are a selection device and a selection method for enabling an operator to efficiently select an amplifier capable of driving a motor having a desired performance, said selection being made from the perspective of the number of amplifiers installed, the price, or the installation space. This selection device for selecting an amplifier and a motor is provided with: a storage unit for storing the motor performance for each of a plurality of motors and, for each of a plurality of amplifiers, the number of control shafts and/or the price and/or the installation space of the amplifier, as well as the performance of the motors that can be driven; an input unit for enabling an operator to input selection information; a motor selection unit for selecting a motor satisfying a condition; an amplifier selection unit for selecting one or more amplifiers for driving the required number of motors satisfying the condition, said selection being made so as to minimize the total number installed, the total price, or the total installation space; and a display unit for displaying the selected motor and the selected amplifiers.