Emc Immunity - Danfoss VT2800 Series Design Manual

• 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:
Basic standard
61000-4-4
Acceptance
criterion
Port connection
Line
Motor
Control lines
Relay
Profibus
Signal interface
<3 m
Enclosure
Standard bus
Basic speci-
fications
Line 2 kV / DCN
Motor
Control lines 2 kV / CCC
Relay 2 kV / CCC
Profibus 2 kV / CCC
Signal interface 2 kV / CCC
<3 m
Enclosure
Standard bus 2 kV / CCC
DM: Differential mode
138
Burst Surge
61000-4-5
B B
CM DM / CM
OK / OK
OK
1
OK - / OK
OK - / OK
1
OK - / OK
OK
1
OK - / OK
2 kV / 4kV
1
2 kV/2
1
2 kV/2
1
2 kV/2
1
2 kV/2
VLT
• 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.
ESD Radiated
61000-4-2 61000-4-3
B A
Field
OK OK
8 kV AD 10 V/m
6 kV CD
CM: Common mode
MG.28.E9.02 - VLT is a registered Danfoss trademark
®
2800 Series
Mains RF CM
distortion voltage
VDE 0160 61000-4-6
A
DM CM
OK
OK
OK
OK
OK
10 Vrms
10 Vrms
10 Vrms
10 Vrms
10 Vrms
10 Vrms
2