Siemens Simatic PC Panel PC 870 - Manual (Page 64)

Electromagnetic Compatibility Release 11/02
4–2 SIMATIC Panel PC 670/870 Start-Up Instructions
Sinusoidal wave interference
RF Radiation complying with EN 61000-4-3
• Electromagnetic RF field, amplitude-modulated
from 80–1000 MHz
10 V/m
80 % AM (1 kHz)
• Electromagnetic RF field, pulse-modulated
900
± 5 MHz
10 V/m
50 % ED
200 Hz pulse repetition frequency
• RF interference on signal lines, data lines, etc. complying with EN 61000-4-6,
radio frequency, asymmetric, amplitude-modulated
from 0.15 –80 MHz
10 V RMS value
80 % AM (1 kHz)
Interference emission
Radiated interference of electromagnetic fields according to
EN 55011: Limit Value Class A, Group 1.
from 30–230 MHz < 30 dB (µV/m)Q
from 230–1000 MHz < 37 dB (µV/m)Q
measured from a 30 m distance
Radiated interference from mains AC line power supply complying with EN 55011:
Limit Value Class A, Group 1 (only 230 V operating units)
from 0.15–0.5 MHz < 79 dB (µV)Q
< 66 dB (µV)A
from 0.5–5 MHz < 73 dB (µV)Q
< 60 dB (µV)A
from 5–30 MHz < 73 dB (µV)Q
< 60 dB (µV)A