Advantech PCI-1240U Manual do Utilizador descarregar pdf (Página 8)

Motion Control

SoftMotion Introduction

2-axis Circular Interpolation

is circul r interpol tion

Center point specific tion CCW irection

e center position c n e specifie

-nn

nnfn n

T e pass point on a

arc can e specified

2-a is circular interpolation

Pass point point specification

ais

Backlash Compensation

In order to enhance ball screw repeatability precision, special

algorithms and commands can be adopted to eliminate these errors

and offset their inherited weakness in mechanism design.

Tangential Following

The knife control of cutting machine is typical application. For Z

axis movement, a motor follows the X-Y movement and curve.

As shown below, the tangential direction of the circular movement

for the Z axis on this X-Y dimension will be adjusted instantly to

ensure that the radius between its movement and the circular trace

stays at 90 degrees.

Superimposed Move

Change the current state of motion by superimposing new commands

onto existing movement. E.g. the expected position and speed are

5,000 and 300. The state of motion is changed by superimposing

position 1,000 and speed 100.

Position Window Output

The digital output voltage level within a certain position window can

be controlled by using commands.

Drive ear

T e drection of last

cali ration move was positive.

T e drection of last

cali ration move was ne ative.

e ative

ac las

distarice

e ative

ac las

distarice

is ero

Positive

ac las

distarice

is ero

Driven ear

Drive ear

Driven ear

Positive

ac las

distarice

400

000

Velocity

Distance

5000

200

100

Superimposed movement 1000

Point to point movement 5000

active

nactive

active

nactive

Position

ower switc in

point

pper switc in

point

ower switc in

point

pper switc in

point

2-8

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 29 30

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