Technical Support
Comfort Panels
172 Operating Instructions, 03/2012, A5E03404994-02
8.2 Directives and declarations
8.2.1 Electromagnetic compatibility
Introduction
The HMI device fulfills, among other things, the requirements of the EMC law pertaining to
the domestic European market.
EMC-compatible installation of the HMI device
The EMC-compliant installation of the HMI device and the application of interference-proof
cable is the basis for interference-free operation. The "Directives for interference-free
installation of PLCs" and the "PROFIBUS Networks" manual also apply for the installation of
the HMI device.
Pulse-shaped disturbance
The following table shows the electromagnetic compatibility of modules with regard to pulse-
shaped interference. The precondition for electromagnetic compatibility is that the HMI
device meets the specifications and guidelines for electrical installation.
Pulse-shaped interference Tested with Degree of
severity
Electrostatic discharge in
accordance with
IEC 61000-4-2
Air discharge: 8 KV
Contact discharge: 6 kV
3
Burst pulses (high-speed
transient interference) in
accordance with
IEC 61000-4-4
2 KV signal cable with 24 V DC
2 KV signal/data cable > 30 m
1 KV signal cable < 30 m
3
High-energy single pulse
(surge) in accordance with
IEC 61000-4-5
1
Asymmetrical coupling:
2 KV supply line
DC voltage with protective elements
2 KV signal/data cable > 30 m,
optional protective elements
Symmetrical coupling:
1 KV supply line
DC voltage with protective elements
1 KV signal cable > 30 m,
optional protective elements
3
1
External protective circuit required; please refer to the S7-300 automation system installation
manual, Installation, "Lightning and overvoltage protection" section
The S7-300 automation system installation manual, Installation, is available to download
from the Internet (http://support.automation.siemens.com/WW/view/en/15390415
).
To Next Page
Loading...
