Installation Guidelines - YASKAWA VIPA IM 053IP Manual

VIPA System SLIO
Module failure

2.8 Installation guidelines

General
What does EMC mean?
Possible interference
causes
HB300 | IM | 053-1IP00 | GB | 13-50
Behaviour: After PowerON all of the RUN LEDs up to the defective
module are flashing. With all following modules the MF LED is on and
the RUN LED is off.
Reason: The module on the right of the flashing modules is defective.
Remedy: Replace the defective module.
The installation guidelines contain information about the interference
free deployment of a PLC system. There is the description of the
ways, interference may occur in your PLC, how you can make sure
the electromagnetic digestibility (EMC), and how you manage the iso-
lation.
Electromagnetic digestibility (EMC) means the ability of an electrical
device, to function error free in an electromagnetic environment
without being interfered respectively without interfering the environ-
ment.
The components of VIPA are developed for the deployment in indus-
trial environments and meets high demands on the EMC. Neverthe-
less you should project an EMC planning before installing the compo-
nents and take conceivable interference causes into account.
Electromagnetic interferences may interfere your control via different
ways:
n Electromagnetic fields (RF coupling)
n Magnetic fields with power frequency
n Bus system
Power supply
n
Protected earth conductor
n
Depending on the spreading medium (lead bound or lead free) and
the distance to the interference cause, interferences to your control
occur by means of different coupling mechanisms.
There are:
galvanic coupling
n
n capacitive coupling
n inductive coupling
n radiant coupling
Basics and Assembly
Installation guidelines
27