SIMATIC PC Panel PC 677/877, Control Unit
Operating Instructions, Edition 04/2005, A5E00407724-01
9-1
Technical specifications
9
9.1
9.1
EMC requirements
Standards
EMC requirements
EN 61000-6-4
EN 61000-6-2
Radio frequency interference
EN 55011
Class A, Group 1
•
Immunity level against very steep impulses: Bursts
•
Interference immunity on power lines
•
Interference immunity on data and signal lines <30
m
•
Immunity in data/signal lines >30 m process data
lines
EN 61000-4-4 DC 24 V; 2.0 kV,
interference criterion B
1.0 kV, interference criterion B
2.0 kV, interference criterion B
Immunity to surges: Surge
EN 61000-4-5 At DC 24-500 V
1 kV symmetrical
2 kV unsymmetrical with intermediate unit
Dehnrail 24 FML, order number: 901 104
Immunity to discharges of static electricity ESD
EN 61000-4-2 8 kV with air discharge
6 kV on contact, direct/indirect
Interference criterion B
Interference immunity against radiated, radio-
frequency, electromagnetic field
EN 61000-4-3
EN 61000-4-3
80-1000 MHz: 10 V/m
Modulation: 80% AM with 1 kHz, interference
criterion A
900 MHz, ±5 MHz, 10 V/m test duration
1 Minute
Pulse modulation: 50% sensor proportion 50%
with
200 Hz, interference criterion A
HF radiation in lines and shielded lines
EN 61000-4-6 At DC 24 V
on signal lines and data lines
150 kHz to 80 MHz: 10 V/m
Modulation: 80% AM with 1 kHz, interference
criterion A
Interference immunity against magnetic fields
IEC 61000-4-8 50/60 Hz, 30 A/m effective value
