Electromagnetic Compatibility - Siemens SIMATIC ET 200MP System Manual

Technical specifications

10.2 Electromagnetic compatibility

10.2 Electromagnetic compatibility
Definition
Electromagnetic compatibility (EMC) is the ability of an electrical installation to function
satisfactorily in its electromagnetic environment without interfering with that environment.
Among other things, the ET 200MP distributed I/O system also meets the requirements of
the EMC legislation for the European single market. The prerequisite for this is that the
ET 200MP complies with the requirements and guidelines relating to electrical equipment.
EMC in accordance with NE21
The ET 200MP meets the EMC specifications of the NAMUR guideline NE21.
Pulse-shaped disturbances
The following table shows the electromagnetic compatibility of the ET 200MP with regard to
pulse-shaped disturbances.
Table 10- 2
Pulse-shaped disturbance
Electrostatic discharge in
accordance with IEC 61000-4-2.
Burst pulses (high-speed transient
disturbances) in accordance with
IEC 61000-4-4.
High-energy single pulse (surge) in accordance with IEC 61000-4-5
External protective circuit required (not for 230 V modules)
(see function manual Designing interference-free controllers
(http://support.automation.siemens.com/WW/view/en/59193566)
•
•
100
Pulse-shaped disturbances
Asymmetric coupling
Symmetric coupling
Test voltage
Air discharge: ±8 kV
Contact discharge: ±6 kV
±2 kV (power supply lines)
±2 kV (signal lines > 30 m)
±1 kV (signal lines < 30 m)
±2 kV (power supply lines)
DC with protective elements
±2 kV (signal/data line only > 30 m), with
protective elements
±1 kV (power supply lines) DC with
protective elements
±1 kV (signal/data line only > 30 m), with
protective elements
System Manual, 01/2013, A5E03723484-01
Corresponds
with degree of
severity
3
3
3
3
3
ET 200MP Distributed I/O System