Siemens SIMATIC ET 200SP - Page 276

Technical specifications
14.2 Electromagnetic compatibility
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
275
Pulse-shaped disturbance variables of the ET 200SP system
The table below shows the electromagnetic compatibility of the ET 200SP distributed I/O
system with regard to pulse-shaped disturbance variables.
Table 14- 1 Pulse-shaped disturbance variables
Pulse-shaped disturbance variable
Tested with
Equivalent to
severity
Electrostatic discharge in accord-
ance with IEC 61000-4-2
Air discharge ±8 kV
Contact discharge: ±6 kV
3
3
Burst pulses (fast transients) in
accordance with IEC 61000-4-4
±2 kV (power supply line)
±2 kV (signal line >30 m)
±1 kV (signal cable <30 m)
3
3
High-energy single pulse (surge) in accordance with IEC 61000-4-5
External protective circuit required (see Function manual Designing interference-
free controllers (http://support.automation.siemens.com/WW/view/en/59193566))
3
• Asymmetric coupling
±2 kV (power supply lines)
DC with protective elements
±2 kV (signal lines/data lines only >30 m) with
protective elements if necessary
• Symmetric coupling
±1 kV (power supply line) DC with protective
elements
±1 kV (signal line/data line only >30 m) with
protective elements if necessary