Electromagnetic Compatibility - Siemens SIMATIC HMI Mobile Panel 277 RO Operating Instructions Manual

2.9

Electromagnetic compatibility

Introduction
The HMI device satisfies, among other things, the requirements of the EMC laws pertaining
to the European domestic market.
EMC-compliant installation
The EMC-compliant installation of the connection box and the application of interference-
proof cable is the basis for interference-free operation. The "Guidelines for interference-free
installation of PLCs" description and the "PROFIBUS Networks" manual also apply to the
installation of connection boxes.
Pulse-shaped interference
The following table shows the electromagnetic compatibility of modules with regard to pulse-
shaped interference. This requires the HMI device to meet the specifications and directives
for electrical installation.
Pulse-shaped interference
Electrostatic discharge
in accordance with IEC 61000-4-2
Bursts
(high-speed transient interference)
in accordance with IEC 61000-4-4
High-power surge pulses in accordance with IEC 61000-4-5, external protective circuit required
(refer to controller S7-300, Installation, chapter "Lightning and surge voltage protection")
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Mobile Panel 277 RO
Operating Instructions, 10/2015, A5E36824256-AA
Asymmetrical coupling
Symmetrical coupling
Safety instructions and general notes
Test voltage
Air discharge: 8 kV
Contact discharge: 6 kV
2 kV power supply cable
2 kV signal cable, > 30 m
1 kV signal cable, < 30 m
2 kV power cable
DC voltage with protective elements
2 kV signal/data cable, > 30 m,
with protective elements as required
1 kV power cable
DC voltage with protective elements
1 KV signal cable, > 30 m,
with protective elements as required
2.9 Electromagnetic compatibility
Degree of severity
3
3
3
3
29