Guía Para Seleccionar Servomotores

A Comprehensible Guide to Servo Motor Sizing
By Wilfried Voss Published by Copperhill Technologies Corporation 158 Log Plain Road Greenfield, MA 01301 Copyright © 2007 by Copperhill Technologies Corporation, Greenfield, Massachusetts No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying,recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without the prior written permission of the Publisher. ISBN: 978-0-9765116-1-8 Printed in the United States of America

Limit of Liability/Disclaimer of Warranty While the publisher and author have used their best efforts in preparing this book, they make no representations orwarranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties or merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professionalwhere appropriate. Neither the publisher nor author shall be liable for any loss or profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.

158 Log Plain Road Greenfield, MA 01301

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A Comprehensible Guide To Servo Motor Sizing

About this book
After years of developing servo motor sizing programs for Windows I deemed itnecessary to document the motor sizing process beyond the regular help files. The result of this idea is this book. My bible for motor sizing and the inertia/torque calculation of mechanical components has been for years a faded copy of “The Texonics Motion Cheat Sheet”, which was given to me by Mr. Charles Geraldi and for which I will be forever grateful. Years later I received a similarversion, “The Smart Motion Cheat Sheet” by MSI Technologies, Inc., which was created by Brad Grant, P.E. I am sure, somebody knows the story of how the motion cheat sheet was originally developed and how it evolved. It is so far the most effective written tool for motor sizing that I am aware of. Both versions of the motion cheat sheet contain on only a few pages everything I needed to know to create thefirst version of a motor sizing software under MS-DOS and then under the various Windows versions. The result of all these activities is VisualSizer-Professional™, the most advanced motor sizing software in the business. Many businesses in the motion control industry have chosen to use VisualSizer and have it customized for their purposes. Through the cooperation with many motion control expertsI learned that the servo motor sizing process is a somewhat universal procedure. The calculation of inertia and torque of mechanical components, i.e. the motor load, has not changed since the invention of the electrical motor. All the motor has to do is to match the speed, inertia and torque requirements. However, written works on in-depth motor sizing, besides frequent, but somewhat superficialarticles in various motion control publications, are extremely rare. The motor sizing process involves a number of mathematical equations, which are most certainly documented, but not necessarily with the motor sizing process in mind. This book focuses primarily on servo motor sizing, not on motor technologies and other related specifics. It documents the inertia and torque calculation of standardmechanical components and the motor selection process. Last, but not least, let me re-iterate a previous statement: The calculation of mechanical loads goes way back to the time when Isaac Newton described the three laws of motion. The math of calculating mechanical loads have not changed since then and they did not change with the use of electrical motors. It may be that mechanical components...