Multiplexed Control of Multi-Axis Machine with Distributed Amplifier
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Solution Overview
Problem
Conventional motion control amplifiers require multiple dedicated drivers for each axis of motion in multi-axis machinery, leading to increased costs and space consumption due to the need for multiple control systems and the inability to simultaneously tune parameters across multiple axes.
Innovation Solution
A distributed control motor amplifier system that allows for the multiplexing of power and control signals among multiple axes, using relays to switch between motors and maintain position, reducing the number of required amplifiers and enabling cost-effective control of multiple axes with a single amplifier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple dedicated driver amplifiers are used for each motor axis, then each axis can be controlled independently and reliably, but the system cost and space consumption increase significantly
Solution Approach 1:
The patent implements a single distributed control amplifier that can be multiplexed to control multiple motor axes sequentially. The amplifier switches between different axes by connecting to different motors through relay switches, allowing one amplifier to perform the function of multiple dedicated amplifiers, thereby reducing component count while maintaining control capability
Solution Approach 2:
The system dynamically switches the connection between the control amplifier and different motors based on which axis needs control at any given time. The relay switches enable the amplifier to be connected to different motors in sequence, creating a dynamic reconfigurable control system that adapts to different operational requirements
2Ease of operation
If multiple dedicated driver amplifiers are used for each axis, then simultaneous tuning of parameters across multiple axes is possible, but the system cost increases
Solution Approach 1:
The distributed control amplifier provides universal parameter tuning capability for multiple axes through software configuration. The amplifier can be programmed with different tuning parameters for each axis it controls, allowing comprehensive parameter adjustment across all axes without requiring separate hardware amplifiers for each axis
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides significant cost and space savings by reducing the number of control components, allowing for efficient control of multiple axes with a single distributed amplifier, while maintaining precise positioning and flexibility in operating parameter settings.
Implementation Method 1
a first relay having a switch coupled to the distributed control motor amplifier, a first contact coupled to the first motor, a second contact coupled to the second motor, and a coil for receiving an actuation signal, wherein the relay is configured to be manipulated in response to the actuation signal between a first state in which the switch is electrically connected to the first contact a second state in which the switch is electrically connected to the second contact
Data Source
AI summary
A control apparatus for multiplexing a single distributed control amplifier to control multiple axes of motion in a multi-axis machine. In one example, the control apparatus comprises a distributed control motor amplifier, a first motor constructed and arranged to provide movement along a first axis of motion, a second motor constructed and arranged to provide movement along a second axis of motion, a first relay having a switch coupled to the distributed control motor amplifier, a first contact coupled to the first motor, a second contact coupled to the second motor, and an input for receiving an actuation signal, wherein the relay is configured to be manipulated between a first state in which the switch is electrically connected to the first contact a second state in which the switch is electrically connected to the second contact, in response to the actuation signal.