Ambient Conditions
84 Unrestricted SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
DC8-037-2.02, Edition 10.2017
4.4.5 Communication with Insulation: RS-485/RS-232
Parameter Value Test standard Product standard Class
Dielectrical test (50 Hz)
U ≤ DC 70 V/AC 33 V
1.5 kV
eff
60 s IEC 60255-27 IEC 60870-2-1 >VW2
Impulse voltage 1.2/50 µs
common
2.5 kVp IEC 60255-27 IEC 60870-2-1 >VW2
Impulse voltage 1.2/50 µs
normal
2.5 kVp IEC 60255-27 IEC 60870-2-1 >VW2
Fast transient burst
common
4.0 kVp 5 kHz
*)
IEC 61000-4-4 IEC 60870-2-1 3
Fast transient burst
common
4.0 kVp IEEE C37.90.1
Fast transient burst
normal
4.0 kVp IEEE C37.90.1
Surge 1.2/50µs
common
2.0 kVp IEC 61000-4-5 IEC 60870-2-1 3
Surge 1.2/50µs
normal
2.0 kVp IEC 61000-4-5 IEC 60870-2-1 3
Conducted disturbances
(induced HF)
10 V 0.15…80 MHz
80% AM 1 kHz
IEC 61000-4-6 IEC 60870-2-1 3
Ring waves 100 kHz
common
2.0 kVp IEC 61000-4-12 IEC 60870-2-1 4
Ring waves 100 kHz
normal
2.0 kVp IEC 61000-4-12 IEC 60870-2-1 4
Conducted common mode
disturbances common
30…3 V
15 Hz…150 kHz
30 V
16⅔/50/60 Hz 60 s
300 V
16⅔/50/60 Hz 1 s
IEC 61000-4-16 IEC 61850-3 Ed.2
Damped oscillatory waves
1 MHz common
2.5 kVp IEC 61000-4-18 IEC 60870-2-1 4
Damped oscillatory waves
1 MHz common
2.5 kVp IEEE C37.90.1
*)
CP-8000: tested with 2.0 kVp
The listed values are valid for shielded cables.
4.4.6 Communication without Insulation: RS-232
The communication via RS-232 is designed only for distances ≤ 2.5 m. Therefore this inter-
face does not need to show an immunity. The immunity and the galvanic insulation is as-
sumed by the external data communications equipment.
You can find the electrical ambient conditions of data transmission equipment in the related
data sheets.