How to choose an efficient motion controller

2022-08-13
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How to choose an efficient motion controller

if there is an efficient motion control solution that can be applied to all applications, it will be very beneficial, but the motion controller components, especially the controller and motor, often have a variety of shapes, sizes and functions. The key to making so many choices is not only to realize the need for faster speed, higher accuracy, smaller combined parts and lower cost, but also to realize the use of a correct technology, which can be changed and developed to better adapt to applications in the future

choose a controller

the three most common motion controllers available are based on physical structure: PLC based controller, PC based controller and separate controller. PLC based and PC based controllers are typical multi axis units that can provide tighter inter axis synchronization for many tasks, such as insertion, path control, and multi axis driven by a common master feedback source. Now, with the emergence of many high-speed communication network options in the controller, these same functions can also be realized in a separate model

PC based controllers can be used in simple or complex applications, such as computer counting control and semiconductor tools. A single-chip card with a CPU is more suitable for multi axis control that requires path synchronization

for simple motion control applications such as single axis point-to-point positioning and speed, PLC based controller is an ideal choice. It has several advantages, such as easy integration and installation with machine i/o in large-scale i/o counting system. PLC based motion controllers can now provide software tools to simplify programming, log and alarm management

these PLC controllers are mostly used in high load systems with machine control logic and large and diverse i/o. In these applications, motion modules are directly added to the existing PLC to reduce the size and cost of the system. It can replace hexanoic acid

PC based controllers usually include a microprocessor for controlling the servo loop and a motion program. These controllers are equivalent to a single-chip card with a CPU, and can be widely used in a variety of simple or complex applications, such as computer counting control and semiconductor tools, especially for multi axis control that requires path synchronization

PC based systems can also provide the most direct integration path with uncontrolled systems such as enterprise resource planning and database applications. Software based controllers designed for PCs have also begun to appear, but the demand for real-time control and the fear of system crash from P said the resilient testing equipment C have slowed down the development of this trend

whether it is a small single axis machine or a large machine built through a distributed network, a separate controller can provide application solutions. The intelligent individual controller can reduce the number of required components and point-to-point lines for each axis, so as to enhance the diagnostic function and reduce the space occupied by the control panel and the installation and troubleshooting time. The overall performance of motion control can be improved by using a tight coupling device between control and drive, and this improvement will not be reduced in a multi axis system

brushless servo and stepping module

an example of the joint trend of motion controller is the S2K and IMS series brushless servo and stepping module of whedco, which has standard DeviceNet communication, all digital drive and control capabilities, and all these are provided in one integrated package. Using low inertia engines, these components can not only provide higher acceleration for the application needs of assembly, electronics, semiconductor processing and textile industry, but also solve the reduced size of 12. Upper and lower pressing plates: φ 160mm (alternative 204 × 204mm) space and line problems

in addition, engine manufacturers also integrate drive, control, motor and communication into one package. The trend of integration eliminates the need for decentralized drive electronic components, and network communication such as DeviceNet maintains a simple and clear interface with the main controller, which also makes it easier to obtain new positions and commands from the network scanner

let the network work

devicenet network, and the moving beam automatically stops moving (or automatically returns to the initial position). The universal application of Profibus and Ethernet in motion controllers has made the single axis controller physically distributed, and can also support cooperative motion and logical control. In particular, motion control shows the trend of turning to distributed control structure. The Windows CE platform with embedded Ethernet and Fieldbus connection can reduce the common backplane design for PC and PLC. Windows CE also makes individual controllers more like PCs, with non control functions available to more controllers

the single-chip controller reduces the component requirements and point-to-point lines, so the shuttle and installation and troubleshooting time of the control panel are reduced while enhancing diagnosis

future motion controllers integrate high-speed, process dependent i/o functions into a control drive unit, and handle non critical i/o control functions through network communication devices. More and more integration packages will control a complete tool and communicate with HMI and MIS systems through networks from different levels that can handle control and data functions. The motion controller on the network is easier to configure, and can support data transmission functions such as file upload/download and data collection

the motion controller market is traditionally based on dedicated systems, and the increasing bandwidth and processing speed are bringing the controller market to a more general solution. Although some integrators and customers prefer PLC motion controllers while others prefer PC or separate controllers, the prevalence of high-speed networks undoubtedly increases the flexibility of motion controllers, making it possible for motion controllers to be more closely integrated at all levels of machines, workshops and factories

engineers can simplify and reduce machine costs by using networking technology to eliminate connection points. The fewer connection points means the fewer potential fault points that need to be diagnosed

with the network communication protocol, the control PLC can receive the controller data of company a and the bar scan reading material of company B in the same industrial standard format. Therefore, network provides a seamless language interface between devices from different manufacturers

however, the best networks and devices can support multi-level communication. The network compatible motion controller enables managers to access their programs, load registration and read control identity information. Devices with this performance can also provide real-time system diagnosis or HMI feedback, and adjust machine behavior when necessary

for machine designers, the network system supporting peer network communication is also a larger choice. Peer network communication allows DeviceNet connectionless support

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