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Siemens Commissioning Guide CM1G5192en
Building Technologies 4 EMC-compatible installation of SED2 29.07.2010
IP20: EMC-compatible wiring of SED2 by means of gland plates (frame sizes A…C)
F1 F2
SED2 SED2
F3
5192Z 38de
U
V
W
BMS
Motor cables
shielded
I/O modules
5192Z34en
Gland plate
Metal partition
SED2 Plastic housing
frame sizes A...C
C-profile rail
Connection and
potential
equalization rail
min. 16 mm
2
Supply air Extract air
Strain relief rail
4.4.3 Cable shielding connections
• The quality of the shielding connection to ground is decisive for the effectiveness of shielding. All shielding
connections must be “HF-tight“, that is, coaxial, low-resistance and low-inductance
• Shielding should be run as close as possible to the device or the respective subassembly
• For IP54 versions of the VSD of frame sizes D…F, use metal
cable fittings as depicted here for the connection of shielded
cables (refer to Mounting Instructions for EMC cable fittings)
Shielding
• For IP20 versions of the VSD of frame sizes A.…C, we recommend to use the optional gland plates to improve
the connection of cable shielding to ground of the VSD
• Avoid pigtails when connecting shielding. Use EMC earthing clamps, cable clamps or shielding connection
clamps that ensure 360° contact (see illustration below)
5191Z01
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