Cabinet Design and EMC Booksize
9.5 Information about electromagnetic compatibility (EMC) and cable routing
Booksize power units
520 Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
Signal and DC power supply cables
Operating unshielded signal and direct current supply cables (e.g. 24 V infeed with external
supply):
● Direct current supply cables: Max. permissible length: 10 m
● Unshielded signal cables: Max. permissible length: 30 m (without additional wiring)
For greater lengths, suitable wiring must be connected by the user to provide overvoltage
protection. For example:
Table 9-11 Recommendations for overvoltage protection
DC supply 24 V signal cables
Weidmüller
Type No.: PU DS 24V 16A
Weidmüller
Type No.: MCZ OVP TAZ
Weidmüller GmbH & Co. KG
An der Talle 89
33102 Paderborn
Tel. +49 (0) 5252/960-0
Fax +49 (0) 5252/960-116
http://www.weidmueller.com
NOTICE
The connected signal and power cables must be routed to the components in such a way
that they do not cover the ventilation slots.
CAUTION
Unshielded signal cables must not be routed parallel to power cables.
Table 9-12 Maximum cable lengths
Type Maximum length [m]
24 V DC power cables
2
10
24 V signal cables
2
30
DC link, including extensions 10
Total length of power cables in the drive line-up
comprising the following: Motor power cables, DC
link cable(s) and line feeder cable from the line
filter output
350 (shielded)
560 (unshielded)
Total length: Motor cables, line feeder cable from
the Basic Line Filter to the Active Line Module
< 150 (shielded)
Total cable length with Voltage Clamping Module
(limitations/constraints, refer to the Chapter,
Voltage Clamping Module)
630 (shielded)
850 (unshielded)
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