Technical information
8.3 Electromagnetic compatibility
Comfort Panels
Operating Instructions, 07/2017, A5E36770603-AB
189
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
Electrostatic discharge in
accordance with IEC 61000-4-2
Air discharge: 8 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 power cable
DC voltage with protective elements
• 2 kV signal cable/data cable > 30 m,
with protective elements as required
Symmetrical coupling:
• 1 kV power cable
DC voltage with protective elements
• 1 kV signal cable > 30 m,
with protective elements as required
3
External protective circuit required, see Function Manual "Designing Interference-free Controllers",
section 7 "Lightning and overvoltage protection"
You can find the Function Manual "Designing interference-free controllers" for download on
the Internet (https://support.industry.siemens.com/cs/ww/en/view/59193566
).
The following table shows the EMC behavior of the modules with respect to sinusoidal
interference. This requires the HMI device to meet the specifications and directives for
electrical installation.
HF radiation (electromagnetic
fields) according to IEC 61000-4-3
80% amplitude modulation at 1 kHz
• to 10 V/m from 80 MHz to 1 GHz
• to 10 V/m from 1.4 GHz to 2 GHz
• to 1 V/m from 2 GHz to 2.7 GHz
HF current feed on cables and
cable shields according to
Test voltage 10 V with 80% amplitude modulation at 1 KHz in
the 10 KHz to 80 MHz range
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