Advantech PCI-1240 Manual do Utilizador descarregar pdf (Página 11)

3 Chapter 1

• "Go home” functions (PCI-1240U only)

• Universal PCI Bus for both 3.3 and 5 V PCI slots (PCI-1240U only)

The Advantech PCI-1240/PCI-1240U offers the following main features:

Individual Control for 4 Axes

Each of the four axes has identical function capabilities, and is controlled

by the same method of operation with constant speed, trapezoidal or

S-curve driving.

Programmable T/S-curve Acceleration and Deceleration

Each of four axes can be preset individually with S-curve or trapezoidal

acceleration/deceleration rates. When using S-curve acceleration to con-

trol driving speed, output pulse is generated in parabolic-shaped accelera-

tion or deceleration curves, and the triangular curve phenomenon will not

occur through the NOVA MCX314/MCX314AS-motion ASIC design

concept.

Linear and Circular Interpolation

Any two or three axes can be selected to execute linear interpolation driv-

ing and any two axes can be selected to execute circular arc interpolation

control. The interpolation speed range is from 1 PPS to 4 MPPS.

Powerful position management function

Each axis is equipped with a 32-bit logical position counter and a 32-bit

real position counter. The logical position counter counts the axis’ pulse

output number and the real position counter is recorded with the feedback

pulse from the outside encoder or linear scale.

Speed Control

The speed range of the pulse output is from 1PPS to 4MPPS for constant

speed, trapezoidal or S-curve acceleration/deceleration driving. The

accuracy of the frequency of the pulse output is less than +/- 0.1% (at

CLK=16 MHz). The speed of driving pulse output can be freely changed

during the driving.

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Advantech PCI-1240 Manual do Utilizador Página 11