Installing The Converter In Compliance With Emc Rules - Siemens Sinamics PM250 Hardware Installation Manual

5.2.3

Installing the converter in compliance with EMC rules

Rules for cable installation to ensure EMC
● Install the inverter on a metal mounting plate. The mounting plate must be unpainted and
highly electrically conductive.
● Use shielded cables for the following connections:
– Motor and motor temperature sensor
– Braking resistor (not available for all inverters)
– Fieldbus
– Inputs and outputs of the terminal strip
● Connect the cable shields to ensure EMC:
Image 5-4
Example
EMC-compliant wiring for connecting the line
supply and motor - as well as for the Control
Unit.
①
②
③
PM250 Power Module
Hardware Installation Manual, 01/2016, A5E36265179B-AA
Examples of correct EMC-compliant shield connection
Line feeder cable - non-shielded - with
strain relief using cable ties
shielded motor cable with hose clamp for
shielding and strain relief
Shielded cable for the Control Unit with
shielding using a serrated strip on the CU
shield plate.
Connection
5.2 EMC-compliant installation
41