Interface Module Se26.1 - Siemens SIMADYN D Hardware Manual

Aotewell Ltd
8.3

Interface module SE26.1

Order No.
Description
Module design
Features
Hardware - SIMADYN D
Edition 04.2011
HongKong|UK|China
www.aotewell.com
6DD1681-0CG1
The module is used to convert analog signal quantities and provide
electrical isolation (floating). The module filters analog signals using a
low-pass filter.
• housing for snapping-on to mounting rails
• differential input
• short-circuit proof output
• operating message via LED
• labeling field for module identification
The module is supplied with 24 V DC. A DC/DC converter generates
electrically isolated +/-15 V DC voltages from this 24 V DC supply. These
supply the isolating- and signal amplifiers at the input. The 24 V DC
power supply and the analog output are electrically connected.
A second order Butterworth low pass filter filters the applied signal. The
frequency characteristics and the transfer characteristics are specified in
Chapter 1.6.
A differential amplifier is used as the input circuitry. Thus, parallel
voltage- or serial current measurements are possible. This allows analog
signals of the plant/system to be processed in electrically-isolated
(floating) SIMADYN D subracks.
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