Electrical isolation, Measures for complying with emc guidelines – Festo Шаговые моторы MTRE-ST User Manual

Page 42

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MTRE−ST42−48S−..

Festo MTRE−ST42−48S−.. 0503b English

42

Warning
All PE cables must be connected before commissioning for reasons of safety.

The mains PE connection is connected to the central PE connection point of the
SEC−ST.

Make sure that the earth connections between devices and the mounting plate
are of sufficiently large dimensions in order to be able to discharge HF interferĆ
ence.

Electrical isolation

In the design of the MTRE−ST, great importance has been placed on high resistance
to interference. For this reason individual function blocks are electrically isolated
from each other. Signal transmission within the MTRE−ST is carried out by an opto
coupler.

Measures for complying with EMC guidelines

If correctly fitted and if Festo cables are used for all the connections, motors
MTRE−ST−... will comply with the regulations specified in the technical standards
DIN EN 61000−6−4 (interference emission) and DIN ENĂ61000−6−2 (resistance to
interference).

Interference emission and resistance to interference of a device always depend on
the complete design of the drive, which consists of the following components:

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the power supply

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the motor

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the electromechanics

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the design and type of wiring

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higher−order controller.

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Make sure that all individual components comply with the EMC guidelines.

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Only use original parts of Festo.

In this way you can be sure that the complete design of your drive complies
with the EMC guidelines.

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