Siemens Simatic CFU Commissioning Manual page 132

Technical specifications
12.1 General technical specifications
Pulse-shaped Interference
The table below shows the electromagnetic compatibility of the described components with
regard to pulse-shaped interference. The prerequisite for this is that the system complies with
the relevant requirements and guidelines relating to electrical equipment.
Pulse-shaped disturbance
Electrostatic discharge according to
IEC 61000-4-2
Burst impulses (fast transient interfer‐
ence) according to IEC 61000-4-4
High-energy current surge according to IEC 61000‑4‑5
The subsequent information for protective circuiting applies for the following unshielded connection
cables to the CFU:
● Power cable
● Freely configurable channels
Protection element selection: See the documentation SIMATIC; S7-1500, ET 200MP, ET 200SP, ET
200AL; Designing interference-free controllers
59193566); Section "Lightning protection and overvoltage protection"
● Asymmetric interference
● Symmetric interference
High-energy current surge according to IEC 61000‑4‑5
The subsequent information applies to the following shielded connection cables to the CFU:
● PROFINET cable
● Fieldbus cable
Coupling (to shield)
Sinusoidal disturbance
EMC performance of the described components in relation to sinusoidal disturbance variables:
The prerequisite for this is that the system complies with the relevant requirements and
guidelines relating to electrical equipment.
Sinusoidal disturbance variable
HF radiation acc. to IEC 61000-4-3
Electromagnetic HF field, amplitude
modulated
HF coupling according to IEC 61000-4-6
132
Tested at
8 kV
6 kV
2 kV (supply line)
2 kV (signal line)
(http://support.industry.siemens.com/cs/document/
● 1 kV (without protective element)
● 2 kV (with protective elements)
● 0.5 kV (without protective element - only power cable
tested)
● 1 kV (with protective elements)
● 2 kV (without protective element)
Tested at
● 80 MHz to 1000 MHz / 1.4 GHz to 2 GHz
● 10 V/m
● 80% AM (1 kHz)
● 0.15 to 80 MHz
● 10 Vrms unmodulated
● 80% AM (1 kHz)
● 150 Ω source impedance
Commissioning Manual, 07/2018, A5E39252870-AC
SIMATIC CFU