INSTALLATION
SINUS K
INSTRUCTIONS
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191
14.
NORMATIVE
REFERENCES
Electromagnetic Compatibility 89/336/CEE and following amendments 92/31/CEE, 93/68/CEE, and
93/97/CEE.
In most systems, the processing control also requires additional devices, such as computers, captors, and so on,
that are usually installed one next to the other, thus causing disturbance:
- Low frequency – harmonics.
- High frequency – electromagnetic interference (EMI)
High frequency interference
High frequency interference is disturbance or radiated interference with >9kHz frequency. Critical values range
from 150kHz to 1000MHz.
Interference is often caused by commutations to be found in any device, i.e. switched mode power supply and
drive output modules. High frequency disturbance may interfere with the correct operation of the other devices.
High frequency noise produced by a device may cause malfunctions in measurement systems and
communication systems, so that radio receivers only receive electrical noise. This may cause unexpected faults.
Two fields may be concerned: immunity (EN50082-1-2, EN61800-3/A11 and following EN 61800-3 issue 2)
and emissions (EN 55011group 1 and 2 cl. A, EN 55011 group 1 cl.B, EN61800-3-A11 and following EN
61800-3 issue 2).
Standards EN55011 and 50082, as well as standard EN61800-3, define immunity and emission levels required
for devices designed to operate in different environments. Drives manufactured by ELETTRONICA SANTERNO
are designed to operate under the most different conditions, so they all ensure high immunity against RFI and
high reliability in any environment.
The table below defines PDS (Power Drive Systems) of EN 61800-3:2002 (which will become EN61800-3 issue
2).
FIRST ENVIRONMENT
Environment including domestic devices and industrial devices which are
connected directly to a low-voltage mains (with no intermediate transformer) for
domestic usage.
SECOND ENVIRONMENT
Environment including industrial connections different from “First Environment”
connections.
PDS of Category C1
PDS with rated voltage lower than 1000 V to be used in the First Environment.
PDS of Category C2
PDS with rated voltage lower than 1000 V; if used in the First Environment, they
are intended to be installed and commissioned by professional users only.
PDS of Category C3
PDS with rated voltage lower than 1000 V to be used in the Second
Environment.
PDS of Category C4
PDS with rated voltage equal to or higher than 1000 V or with a current equal to
or higher than 400A to be used in complex systems installed in the Second
Environment.
Содержание SINUS K
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