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8.3
Electromagnetic compatibility
8.3.1
General information
Electromagnetic compatibility (EMC) describes – according to the definition of the EMC Directive
– the "ability of equipment to function satisfactorily in its electromagnetic environment without
introducing intolerable electromagnetic disturbances to other equipment in that environment".
The devices must demonstrate a sufficiently high immunity, and also the interference must be
limited to acceptable values.
Product standard IEC 61800-3 describes the EMC requirements for "Adjustable-speed electrical
power drive systems". A variable-speed drive system (or Power Drive System - PDS) consists of
a Control Unit, Line Module and Motor Module - as well as the associated electric motors,
encoders and connecting cables. The driven machine is not part of the drive system.
To ensure conformance with the EMC Directive of the EC, fully comply with the measures
described in the "EMC Installation Guideline" Configuration Manual (article number
6FC5297-0AD30-0.P.). When installing the components in control cabinets, the following
conditions must also be fulfilled:
• Operation on TN and TT line supply systems with grounded neutral point
• Observance of information about cable shielding and equipotential bonding
• Use of the recommended power cables and signal cables from Siemens.
• Only use Siemens cables for the DRIVE-CLiQ connections.
8.3.2
Line supply connection conditions
Table 8-1
Line connection conditions for Smart Line Modules
Component
Description
1)
S220 Smart Line Module
Operation on line supplies from S
K line
/P
n
≥ 30
1)
S
K line
= short-circuit power of the line supply; P
n
= rated power of the Line Module
8.3.3
Classification of EMC
The EMC environments and EMC categories are defined in the EMC product standard
IEC 61800‑3 as follows:
Environments
First environment (public systems)
An environment that includes domestic premises and establishments that are connected
directly to a public low-voltage line supply without the use of an intermediate transformer.
Examples: houses, apartments, commercial premises or offices in residential buildings.
Control cabinet design and EMC booksize
8.3 Electromagnetic compatibility
Booksize power units
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
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