NORD Drivesystems BU0700 - Manual (Page 123)

8 Additional information
BU 0700 GB-1411 Subject to technical alterations 123
NOTE:
Please note that these limit value classes are only reached if the standard switching frequency (4/6kHz) is being used and the
length of the shielded motor cable does not exceed the limits.
In addition, it is essential to use wiring suitable for EMC. (Control cabinet / Cable clamping)
The motor cable shielding must be applied on both sides (inverter shield angle and the metal motor terminal box). To comply
with Class 3, cable shielding must also be applied at the entry to the control cabinet (EMC screw connection).
Overview of standards that, as per EN 61800-3 (product standard for frequency inverters) are
based on EN 50081; 510082 and must be complied with
Standard Limit value class
Emission of interference
Cable based interferences EN55011 "A" "B" with filter
Radiated interference EN55011 "A" "B" with filter, built into control cabinet
Immunity from interference
DSE EN61000-4-2 8kV (AD & CD)
Burst on control cables EN61000-4-4 1kV
Burst on mains and motor cables EN61000-4-4 2kV
Surge (phase-phase / phase-ground) EN61000-4-5 1kV / 2kV
EMF EN61000-4-3 10V/m; 26-1000MHz
Voltage fluctuations and drops EN61000-2-1 +10%, -15%; 90%
Voltage asymmetries and frequency
changes
EN61000-2-4 3%; 2%
Wiring recommendations for compliance with Class 3
M
3 ~
PE
L
1
W
V
U
W
V
U
380-480V
50-60Hz
L
1
L
2
PE
L
2
L
3 L
3
PE
+UZW/-B BR/+B
NORDAC SK 700E
Aux. mains
filter
Shield angle
Brake resistor
(Accessories)