VLT
®
2800 Series
•
EN 55011:
Emission
Limits and methods of measurement of
radio disturbance characteristics of industrial, scien-
tific and medical (ISM) high-frequency equipment.
Class 1A:
Equipment used in an industrial environment.
Class 1B:
Equipment used in areas with a public supply network
(residential, commerce and light industry).
■
EMC Immunity
In order to document immunity against electrical
interference, the following immunity tests have
been made on a system consisting of a frequency
converter, a screened/armoured control cable and a
control box with potentiometer, screened/armoured
motor cable, screened/armoured brake cable
and an LCP 2 with a cable.
The tests were performed in accordance with
the following basic standards:
•
EN 61000-4-4 (IEC 61000-4-4): Burst transients
Simulation of interference brought about by
switching with contactors, relays or similar devices.
•
EN 61000-4-5 (IEC 61000-4-5): Surge transients
Simulation of transients brought about e.g. by
lightning that strikes near installations.
•
EN 61000-4-2 (IEC 61000-4-2) :
Electrostatic discharges (ESD)
Simulation of electrostatic discharges
from human beings.
•
EN 61000-4-3(IEC 61000-4-3): Incoming electro-
magnetic field radiation, amplitude modulated.
Simulation of the effects of radar and ra-
dio broadcast devices as well as mobile
communication devices.
•
VDE 0160 class W2 test pulse: Mains transients
Simulation of high-energy transients generated
by breaks in master fuses, connection to phase
advancer batteries and the like.
•
EN 61000-4-6 (IEC 61000-4-
6): RF Common mode
Simulation of the effect from radio-trans-
mitting equipment connected to connection cables.
See following EMC immunity form.
Basic standard
Burst
61000-4-4
Surge
61000-4-5
ESD
61000-4-2
Radiated
61000-4-3
Mains
distortion
VDE 0160
RF CM
voltage
2
61000-4-6
Acceptance
criterion
B
B
B
A
A
Port connection
CM
DM / CM
Field
DM
CM
Line
OK / OK
OK
Motor
OK
Control lines
OK
- / OK
1
OK
Relay
OK
- / OK
OK
Profibus
OK
- / OK
1
OK
Signal interface
<3 m
OK
Enclosure
OK
OK
Standard bus
OK
- / OK
1
OK
Basic speci-
fications
Line
2 kV / DCN
2 kV / 4kV
10 Vrms
Motor
10 Vrms
Control lines
2 kV / CCC
2 kV/2
1
10 Vrms
Relay
2 kV / CCC
2 kV/2
1
10 Vrms
Profibus
2 kV / CCC
2 kV/2
1
10 Vrms
Signal interface
<3 m
2 kV / CCC
Enclosure
8 kV AD
6 kV CD
10 V/m
Standard bus
2 kV / CCC
2 kV/2
1
10 Vrms
DM: Differential mode
CM: Common mode
MG.28.E9.02 - VLT is a registered Danfoss trademark
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