Converter Display Switching for Address Readability and Status Feedback
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Solution Overview
Problem
Industrial systems face faults due to inadequate display of operating status and address information, leading to reduced readability and increased error rates.
Innovation Solution
Incorporating an address code switch with a display on the converter's housing, where actuating the switch displays the corresponding value for a predefined period, allowing the existing display to show either address information or operating information, thereby enhancing readability and reducing faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the address code switch labeling is used for displaying address information, then the converter can show address values, but the type size is small and readability is insufficient
Solution Approach 1:
The display device is designed to perform multiple functions: it displays operating status information during normal operation and switches to displaying address information when the address code switch is actuated. This eliminates the need for separate display elements for address information, resolving the contradiction by making one display system serve dual purposes.
Solution Approach 2:
The display dynamically changes its content based on the state of the address code switch. When the switch is actuated, the display transitions from showing operating status to showing address information, and after a predefined period, automatically returns to showing operating status. This dynamic behavior allows the same display to provide large-type address readability when needed while maintaining normal operational display functionality.
2Measurement precision
If a separate display element is added for address information, then readability improves, but the device complexity and fault rate increase
Solution Approach 1:
By making the existing display device multi-functional, the patent avoids adding separate display elements that would increase complexity and potential failure points. The single display handles both operating status and address information display, reducing the number of components and thereby improving reliability while maintaining readability through the switch actuation mechanism.
Solution Approach 2:
The patent combines the address information display function with the existing operating status display function into a single display device. This merging reduces the total number of display components, simplifies the system, and lowers the fault rate while still providing adequate readability for address information when the address code switch is actuated.
3Measurement precision
If the display continuously shows address information, then readability is maintained, but the display cannot show operating status information
Solution Approach 1:
The display alternates between showing address information and operating status information in a periodic manner. When the address code switch is actuated, the display shows address information for a predefined period, then automatically switches back to showing operating status information. This periodic switching ensures that both types of information are displayed at appropriate times, preventing loss of operating status visibility while maintaining address information readability when needed.
Solution Approach 2:
The display dynamically switches its content based on the actuation state of the address code switch and time elapsed. It transitions from continuous operating status display to address information display during actuation, then automatically returns to operating status display after the predefined period. This dynamic behavior resolves the contradiction by ensuring both information types are visible at different times rather than creating a permanent conflict.
4Ease of operation
If no optical feedback is provided for address input, then the system remains simple, but the operator cannot verify the input within an adequate period
Solution Approach 1:
The patent implements an optical feedback mechanism where the display shows the address information back to the operator after the address code switch is actuated. This feedback is provided for a predefined period, allowing the operator to verify the input. The feedback uses the existing display device rather than adding separate feedback components, thus providing operator confirmation while keeping the overall system relatively simple.
Solution Approach 2:
The existing display device is used to provide optical feedback for address input verification, making it multi-functional. It not only displays operating status information but also serves as the feedback mechanism for address input confirmation. This eliminates the need for separate feedback components, providing operator verification capability while avoiding additional complexity from dedicated feedback hardware.
Data Source
AI summary
In the use of a display of a converter, method for operating a converter, and converter, the converter having an address code switch, in particular on its housing, and in an actuation of the address code switch and during a subsequent, predefined period of time, a respective value corresponding to the respective switch position of the address code switch is displayed by the display. Operating information of the converter is displayed in all other cases.