Mounting; Installation Guideline; Emc-Compliant Installation; Introduction - Siemens SIWAREX WP251 Manual

Mounting

5.1

Installation guideline

When installing the SIMATIC components together with the electronic weighing system
described here, the setup, installation and wiring guidelines for the SIMATIC S7-1200 must
be observed (see system manual "SIMATIC S7 S7-1200 automation system", order no.:
A5E02486681).
This manual describes additional installation and wiring aspects specific to the electronic
weighing system.
5.2

EMC-compliant installation

5.2.1

Introduction

Overview
The electronic weighing system described here was developed for use in industrial
environments and complies with high EMC requirements. Nevertheless, before installing
your devices you should prepare an EMC plan and identify and take into consideration
possible interference sources.
EMC
EMC (electromagnetic compatibility) describes the capability of electrical equipment to
operate without errors in a given electromagnetic environment, without being subject to
external influence and without influencing external devices in any way.
5.2.2

Possible effects of interference

Electromagnetic interferences can influence the electronic weighing system described here
in various ways:
● Electromagnetic fields having a direct influence on the system
● Interferences transported by communication cables
● Interferences having an effect via process cables
● Interferences entering the system via the power supply and/or protective ground
Interferences can impair the fault-free functioning of the electronic weighing system.
SIWAREX WP251
Manual, 12/2015, A5E37203357A
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