Servo Driver Pulse Conversion Module for PLC Compatibility
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Solution Overview
Problem
Existing servo drivers are limited by their inability to switch pulse modes, leading to mismatched pulse signal types between upper computers or PLCs and drivers, resulting in restricted type selection and functionality.
Innovation Solution
A servo driver equipped with a pulse conversion module, comprising a complex programmable logic device, display, buttons, and transceivers, that converts pulse control signals between clockwise and counter-clockwise, pulse plus direction, and AB-phase input control types, enabling flexible type selection and improved anti-interference performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pulse plus direction control mode is used for compatibility with upper computers and PLCs, then ease of operation is improved, but anti-interference performance deteriorates
Solution Approach 1:
The patent introduces a pulse conversion module as an intermediary component between the pulse interface and the driver. This module receives pulse signals in one control mode (e.g., pulse plus direction) and converts them to another mode (e.g., CW+CCW), allowing the system to benefit from the ease of operation of one mode while achieving the anti-interference performance of another mode through signal transformation.
2Device complexity
If fixed pulse control type is used in servo driver, then device complexity is reduced, but adaptability to different upper computers and PLCs deteriorates
Solution Approach 1:
The patent implements dynamic pulse mode switching capability in the servo driver. The pulse conversion module can dynamically adjust and convert between different pulse control modes (CW+CCW, pulse plus direction, AB-phase input) based on the requirements of different upper computers and PLCs, allowing the driver to adapt to various applications without increasing overall system complexity.
Solution Approach 2:
The pulse conversion module provides multi-functionality by supporting multiple pulse control modes and conversion capabilities. A single servo driver system can interface with different types of upper computers and PLCs that use different pulse output modes, making the driver universally compatible without requiring multiple specialized drivers for each control type.
3Device complexity
If pulse type selection is abandoned due to mismatching, then device complexity is reduced, but functionality and productivity deteriorate
Solution Approach 1:
The pulse conversion module serves as a mediator that enables full functionality utilization by converting pulse signals to match between the upper computer/PLC and the servo driver. This eliminates the need to abandon pulse type selection or limit functional usage, as the conversion module ensures proper signal matching for optimal system performance and productivity.
Data Source
AI summary
A servo driver includes: a driver, a pulse conversion module and a pulse interface. The pulse conversion module is connected between the pulse interface and the driver, and the pulse conversion module converts the type of a pulse control signal received by the pulse interface from an upper computer or a PLC and then outputs same to the driver. The type of the pulse control signal includes at least one of a clockwise and counter-clockwise pulse control type, a pulse plus direction control type and an AB-phase input control type. In an embodiment, the pulse conversion module is used to convert the type of the pulse control signal from the upper computer or the PLC, so that the driver can be compatible with an upper computer or a PLC having a different control signal type.