10
05.01
10.2 EMC measures
10-313
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
L1
U1 V1 W1 PE1
L2
L3
PE
F20
F10
F30
F1–3
C1–3
L1
L2
R1–3
Fig. 10-4 Additional EMC measures
The drive converters are designed for operation on industrial line supplies in
accordance with
EN 50178. In this case, it is assumed that the ratio between PN/PK is 1/100.
Under this condition, the series reactor limits the line supply dips, caused by the
general converter operating principle, to permissible values, which allows other
loads, which are suitable for industrial applications, to be used on the same line
supply network.
For unfavorable line supply and grounding characteristics at the location where
the unit is installed, under exceptional cases, cable–borne noise and disturban-
ces can occur, which are the result of an excessively high line supply reactance.
Line filters should be used in cases such as these (they can be used for line
supply voltages up to 415 V).
Note
We recommend that the pre–assembled cables are used, as perfect screening
is required for an optimum EMC connection.
Further, for optimum signal transfer appropriate cable parameters are required.
A guarantee for the correction functioning is only given when the original manu-
facturers cables are used.
Reference: /EMC/ EMC Design Guideline
SINUMERIK, SIROTEC, SIMODRIVE
J
10 Cabinet Design and EMC
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