Servo Amplifier Selection for Power Failure Safety
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Solution Overview
Problem
Conventional servo amplifier selection devices do not adequately consider power failure operations, such as safety and ease of restoration, when configuring servo systems.
Innovation Solution
A servo amplifier selection device that includes a power failure operation condition setting unit, a determination unit, and an output unit, which assesses and outputs appropriate power failure operation methods for selected servo amplifiers, considering software or hardware controls, and utilizes databases for situational and hazard information to optimize power failure management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional servo amplifier selection devices only compare machine conditions with specification data, then the selection process is simple and quick, but the power failure operation appropriateness (safety and ease of restoration) is insufficient
Solution Approach 1:
The selection device is divided into multiple functional units: a servo amplifier selection unit that selects based on machine conditions, and a power failure operation determination unit that separately determines appropriate power failure operations. This segmentation allows the device to handle both basic selection and advanced safety determination without overwhelming complexity in a single module.
Solution Approach 2:
The device performs preliminary determination of power failure operation appropriateness during the selection phase, before actual system operation. By calculating and determining safe operations in advance based on system configuration and machine conditions, the device ensures reliability is built into the design rather than added later.
2Ease of operation
If the selection device determines detailed power failure operation methods, then the safety and ease of restoration are improved, but the complexity of the selection process increases
Solution Approach 1:
The device calculates and determines appropriate power failure operations in advance during the selection phase, storing these determinations for future reference. This preliminary action eliminates the need for complex real-time calculations during actual power failure events, improving ease of restoration while keeping selection time manageable through automated processing.
Solution Approach 2:
The selection device automatically determines and outputs appropriate power failure operations without requiring manual configuration or expert intervention. The system self-services by calculating safe operations based on input machine conditions and specification data, reducing both selection time and operational complexity for users.
3Reliability
If the device considers both machine conditions and power failure operations in selection, then the comprehensiveness of selection is improved, but the complexity of determination increases
Solution Approach 1:
The determination process is segmented into distinct functional units: one that evaluates machine conditions against specification data, and another that separately evaluates power failure operation appropriateness based on system configuration. This segmentation makes the overall complex determination process more manageable by breaking it into smaller, specialized tasks.
Solution Approach 2:
The selection device performs multiple functions within a unified system: it selects servo amplifiers based on machine conditions, determines appropriate power failure operations, and outputs comprehensive selection results. This multi-functionality achieves comprehensive selection without requiring separate independent systems for each evaluation aspect.
Data Source
AI summary
An object is to realize a technology in which a more appropriate power failure operation can be performed when the configuration of a servo system is selected. A selection device 20 includes: a servo system selection unit 21b which selects a servo amplifier corresponding to the specification of a motor and a drive condition of the motor in a servo system; a UI display control unit 21a which receives the setting of a condition on a power failure operation in the servo amplifier selected by the servo amplifier selection unit; and a power failure operation determination unit 21d which determines, based on the condition on the power failure operation received in the power failure operation condition setting unit, a method for the power failure operation in the selected servo amplifier, and the UI display control unit 21a outputs the method for the power failure operation which is determined by the power failure operation determination unit.