Beckhoff AL2000 Application Manual do Utilizador Página 1

Beckhoff Drive Technology Last change: 08.11.2001 Designing your Application with AL2000

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 10 Positioning LM applications require a sophisticated position and ve

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 11 Measurement unit The series AL2000 motors use a wireless linear encod

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 12 Servo-controller The position information as well as the current in

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 13 Accuracy Generally the accuracy of the motor system is influenced by

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 14 Braking A controlled stop by the servocontroller is recommended, es

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 15 Contamination As a standard Beckhoff Industrie Elektronik offers a st

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 16 Cables Linear motors have moving cables. In case of watercooling th

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 17 Bearings To assure a free movement the slide should be provided with

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 18 Vertical applications Linear motors in vertical applications often

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 19 Coupling of Coil Units A magnettrack can be shared by more than one

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 20 3. Linear motor dimensioning Introduction The choice for the right

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 21 Physical background Usually a linear motor’s motion can be distinguis

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 22 Used symbols symbol unit description t s time ta, td tad tim

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 23 Used formulas Kinematics From these formulas two practical estimat

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 24 Other Formulas The dissipated power by the linear motor: The mean

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 25 The case A gripper places components and moves to and fro continuousl

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 26 Dimensioning force and speed Step 1: Worst case cycle Look for the

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 27 • Maximum velocity during acceleration: Once again this velocity e

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 28 Step 2: Kinematic analysis Sketch a velocity-time diagram for the w

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 29 Step 3: Force analysis Sketch a motorforce-time diagram. The motorfor

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 3 Contents Designing your Application with AL2000 1. Introduction 5 2

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 30 Step 4: Motor sizing Two main criteria for the motor’s thrust force

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 31 Step 5: Amplifier sizing For most servocontrollers the duration of th

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 32 4. Appendix Heat transfer and temperature The dissipated power in

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 33 Heatflow, without water cooling Now the heat conducting route and

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 34 Influences on accuracy

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 35 5. Technical data List of specifications AL2000 series Specification

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 36 Peak force - velocity diagrams Velocity diagram AL2003 Velocity di

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 37 Velocity diagram AL2012 Velocity diagram AL2015

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 38 DC link diagram P1, P2 and P3: the three phases of the AC power su

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 39 Technical data of some optical linear rulers Manufacturer type Encod

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 4 Peak force - velocity diagrams 36 DC link diagram 38 Technical dat

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 5 1. Introduction With the series AL2000 Beckhoff Industrie Elektronik

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 6 2. System considerations Power Supply The performance of a linear m

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 7 Protective Earth (PE) To prevent hazardous situations in case of an el

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 8 Heat dissipation Heat dissipation is a very important but difficult

Eiserstraße 5 / D-33415 Verl / Telefon 05246/963-0 / Telefax 05246/963-149 9 Mounting frame: solidity and stability The propelling forces of a line