Ambient Conditions
SICAM RTUs, SICAM MIC System Description 45
MC6-054-2.00, Edition 07.2014
4.4.3 Digital and Analog I/Os
Parameter Value Test standard Cl. Product stand. Cl.
Fast transient burst
common
2.0 kV IEC 61000-4-4 IEC 60870-2-1 4
IEC 60255-22-4 4
Surge 1.2/50 ms
common
2.0 kV IEC 61000-4-5
*)
IEC 60870-2-1 4
Surge 1.2/50 ms
normal
2.0 kV IEC 61000-4-5
*)
IEC 60870-2-1 >4
Induced HF voltage 10 V IEC 61000-4-6
Ring waves 100 kHz
common
2.5 kVs IEC 61000-4-12 IEC 60870-2-1 3
IEC 60255-22-1 3
Ring waves 100 kHz
normal
1.0 kV IEC 61000-4-12 IEC 60870-2-1 >3
IEC 60255-22-1 3
*)
restriction with usage of TE-6420
Usage of TE-6420
If sensor and TE-6420 reside within a cabinet, the signal lines to the sensor must be carried out
shielded and massed both ways (cabinet feeding, potential equalization of sensor).
With usage of third-party supplied sensors, the signal lines as well as the power supply of the
sensor must be directed in shielded cables. The power supply may be directed max. 1 m un-
shielded between power supply module and terminal. The corresponding power supply module
may be used exclusively for the sensor feeding, a usage for other plant parts is not allowed.
4.4.4 Serial Communication V.24/V.28
Parameter Value Test standard Cl. Product stand. Cl.
Fast transient burst
common
2.0 kV IEC 61000-4-4 IEC 60870-2-1 3
IEC 60255-22-4 4
Induced HF voltage 10 V IEC 61000-4-6
The listed values apply for a distance £ 30 m for screened lines.
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