Electromagnetic Compatibility - Siemens SIMATIC S7-1500 System Manual

16.2

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 S7-1500 automation system also meets the requirements of the
EMC legislation for the European single market. The prerequisite for this is that the S7-1500
system complies with the requirements and guidelines relating to electrical equipment.
EMC in accordance with NE21
The S7-1500 automation system meets the EMC specifications of the NAMUR guideline
NE21.
Pulse-shaped disturbances
The following table shows the electromagnetic compatibility of the S7-1500 automation
system with regard to pulse-shaped disturbances.
Table 16- 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 the Defining interference-free controllers
(http://support.automation.siemens.com/WW/view/en/59193566) Function Manual)
•
•
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
Pulse-shaped disturbances
asymmetric coupling
symmetric coupling
16.2 Electromagnetic compatibility
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
Technical specifications
corresponds
with degree of
severity
3
3
3
3
3
187