BECKHOFF DK9222-0909-0005 User Manual

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XFC

XFC technology oversampling

Application Note DK9222-0909-0005

This publication contains statements about the suitability of our products for certain areas of application. These statements are based on typical features of our products. The examp-
les shown in this publication are for demonstration purposes only. The information provided herein should not be regarded as specific operation characteristics. It is incumbent on the
customer to check and decide whether a product is suit-able for use in a particular application. We do not give any warranty that the source code which is made available with this
publication is complete or accurate. This publication may be changed at any time with-out prior notice. No liability is assumed for errors and/or omissions. Our products are described
in detail in our data sheets and documentations. Product-specific warnings and cautions must be observed. For the latest version of our data sheets and documentations please visit
our website (www.beckhoff.com).

© Beckhoff Automation GmbH, September 2009
The reproduction, distribution and utilisation of this document as well as the communication of its contents to others without express authorisation is prohibited. Offenders will be
held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.

Practical applications: torque analysis

A corresponding application scenario would be an EL3702 (±10 V input terminal, max. oversample factor 10 µs) at a fast
torque sensor with matching analog signal output. This can be used for measuring the synchronously smooth operation of
a gear specimen, for example. The incoming signals have to be suitably filtered in the higher-level control system in order to
eliminate noise as necessary. Through oversampling with a frequency of 100 kHz the vibration curve is scaled more finely with
a timebase of 10 µs, so that small torque fluctuation are reproduced sufficiently. The vibration curve can therefore also be
mapped in relation to the exact axis position, e.g. through application of a high-resolution incremental encoder.

Control architecture for highest performance www.beckhoff.com/XFC
EtherCAT www.beckhoff.com/EtherCAT
Digital input terminal with oversampling www.beckhoff.com/EL262
Digital output terminal with oversampling www.beckhoff.com/EL2262
± 5 V analog input terminal with oversampling (IEPE) www.beckhoff.com/EL62
± 10 V analog input terminal with oversampling www.beckhoff.com/EL702
0…20 mA analog input terminal with oversampling www.beckhoff.com/EL72
0…20 mA analog output terminal with oversampling www.beckhoff.com/EL72
± 10 V analog output terminal with oversampling www.beckhoff.com/EL72

New Automation Technology

Beckhoff

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