Motor Drive Device Setting Display with Real-Time Feedback
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Solution Overview
Problem
Existing motor drive devices require cumbersome and inefficient settings processes, involving frequent alternation between operation displays and special measuring instruments, especially when fine adjustments are needed due to voltage drops across wiring impedance, leading to increased operational time and error risk.
Innovation Solution
A motor drive device equipped with a setting display unit that simultaneously displays related information alongside setting content, allowing for easy and quick adjustments through a handheld or remotely operable interface, reducing the need for separate measuring instruments and minimizing operational steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a DC voltage signal is adjusted through fine tuning to compensate for wiring impedance voltage drops, then the consistency with external device is improved, but the setting time and operational complexity increase significantly
Solution Approach 1:
The patent implements automatic feedback by having the microcomputer read the actual input voltage value through the A/D converter and automatically adjust the conversion factor based on the measured voltage, eliminating the need for manual fine-tuning and external measuring instruments while maintaining precision
Solution Approach 2:
The system performs self-adjustment by automatically detecting the input voltage level and computing the appropriate conversion factor without requiring external measuring instruments or manual intervention, thus reducing setting time and operational complexity
2Measurement precision
If a DC voltage signal is adjusted through fine tuning to compensate for wiring impedance voltage drops, then the consistency with external device is improved, but the operational complexity increases due to frequent alternation between operation display and measuring instrument
Solution Approach 1:
The patent combines the voltage measurement function and conversion factor adjustment function into a single integrated system where the microcomputer both reads the input voltage through the A/D converter and automatically adjusts the conversion factor, eliminating the need for separate external measuring instruments and simplifying operations
Solution Approach 2:
The microcomputer serves multiple functions: it controls the display, reads the input voltage through the A/D converter, computes the conversion factor, and adjusts the PWM output, thereby consolidating multiple operations into a single universal controller that reduces operational complexity
Data Source
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AI summary
In a motor drive device (1) the motor driving setting of which is performed by a setting display unit (20), the setting display unit (20) displays a setting content of a setting item when the setting content of the setting item is changed, and further displays related information (an input value, an output detection value, a computed value calculated by the controller) of at least one or more related items, which are related to the setting item. By using the setting display unit which simultaneously displays the setting content and the related information necessary for setting, it is possible to set the motor drive device (1) easily and quickly.