VIPA CP 240 RS232, Руководство пользователя

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Chapter 2 Assembly and installation guidelines Manual VIPA System 200V
2-12 HB97E - CP - Rev. 11/30
Installation guidelines
The installation guidelines contain information on the proper assembly of
System 200V. Here we describe possible ways of interference that may
disturb the controlling system and how you have to approach shielding and
screening issues to ensure the electromagnetic compatibility (EMC).
The term "electromagnetic compatibility" (EMC) refers to the ability of an
electrical device to operate properly in an electromagnetic environment
without interference from the environment or without the device causing
illegal interference to the environment.
All System 200V components were developed for applications in harsh
industrial environments and they comply with EMC requirements to a large
degree. In spite of this you should implement an EMC strategy before
installing any components which should include any possible source of
interference.
Electromagnetic interference can enter your system in many different ways:
•
Fields
•
I/O signal lines
•
Bus system
•
Power supply
•
Protective conductor
Interference is coupled into your system in different ways, depending in the
propagation medium (conducted or not) and the distance to the source of
the interference.
We differentiate between:
•
galvanic coupling
•
capacitive coupling
•
inductive coupling
•
radiated power coupling
General
What is EMC?
Possible sources
for disturbances