inforced/double insulation and associated testing pur-
suant to EN 50 178.
1. Transformer and optical separation in voltage
supply.
2. Optical insulation between Basic Motor Con-
trol and control card.
3. Insulation between the control card and the
power part.
4. Relay contacts and terminals relating to other
circuits on the control card.
PELV insulation of the control card is guaranteed un-
der the following conditions:
-
TT network with maximum 300 Vrms be-
tween phase and earth.
-
TN network with maximum 300 Vrms be-
tween phase and earth.
-
IT network with maximum 400 Vrms between
phase and earth.
In order to maintain PELV all connections made to the
control terminals must be PELV, e.g. thermistor must
be reinforced/double insulated.
EMC emission
The following system results are achieved on a system
consisting of a VLT Series 2800 with screened/arm-
oured control cable, control box with potentiometer,
screened/armoured motor cable and screened/arm-
oured brake cable as well as an LCP2 with cable.
VLT 2803-2875 Emission
Industrial environment Residential, commercial and light industry
EN 55011 class 1A EN 55011 class 1B
Setup
Cable-borne
150 kHz- 30 MHz
Radiated
30 MHz - 1 GHz
Cable-borne
150 kHz - 30 MHz
Radiated
30 MHz - 1 GHz
3 x 480 V version with 1A
RFI filter
Yes
25 m screened/arm-
oured
Yes
25 m screened/arm-
oured
No No
3 x 480 V version with 1A
RFI filter (R5: For IT
mains)
Yes
5 m screened/arm-
oured
Yes
5 m screened/arm-
oured
No No
1 x 200 V version with 1A
RFI filter
1.
Yes
40 m screened/arm-
oured
Yes
40 m screened/arm-
oured
Yes
15 m screened/arm-
oured
No
3 x 200 V version with 1A
RFI filter (R4: For use
with RCD)
Yes
20 m screened/arm-
oured
Yes
20 m screened/arm-
oured
Yes
7 m screened/arm-
oured
No
3 x 480 V version with 1A
+1B RFI filter
Yes
50 m screened/arm-
oured
Yes
50 m screened/arm-
oured
Yes
25 m screened/arm-
oured
No
1 x 200 V version with 1A
+1B RFI filter
1.
Yes
100 m screened/
armoured
Yes
100 m screened/arm-
oured
Yes
40 m screened/arm-
oured
No
VLT 2880-2882 Emission
Industrial environment Residential, commerce and light industry
EN 55011 class 1A EN 55011 class 1B
Setup
Cable-borne
150 kHz- 30 MHz
Radiated
30 MHz - 1 GHz
Cable-borne
150 kHz - 30 MHz
Radiated
30 MHz - 1 GHz
3 x 480 V version with 1B
RFI filter
Yes
50 m
Yes
50 m
Yes
50 m
No
1. For VLT 2822-2840 3 x 200-240 V the same values apply as for the 480 V version with 1A RFI filter.
•
EN 55011: EmissionLimits and methods of measurement of radio disturbance characteristics of indus-
trial, scientific 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).
UL Standard
This device is UL-approved.
VLT
®
2800 Series
84 MG.27.A2.02 - VLT
®
is a registered Danfoss trademark
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