
VECTORDRIVE DSV 5444
Top technology in drive electronics
07.07.04 10:12
Dietz-electronic
page 11 of 60
3.6 Screening of lines
♦
Cables between the inverter output and the motor must be screened (if an output filter is not used). For
long cables, the screen must in addition be earthed every 25 m.
♦
For digital transmission systems, connect the screen on both sides with the equipotential bonding.
♦
For high impedance analog control lines the screen should be in contact on one side on the source side,
as control signal effects due to the 50 Hz ripple current cannot be ruled out.
♦
All screen connections should have a large contact surface if possible with 360° contact to PE.
3.7 Radio interference suppression
Our inverters are set for radio interference suppression by means of a metal screen on the equipment itself.
The unit complies with EN55011 Radio interference of electrical operating resources and installations, limit
value class B, and ENV50141 Radio interference suppression - Test intensity III taking into account the fol-
lowing sections:
♦
Power circuit, Mains filter
♦
Power circuit, Installation
instructions for radio interference
3.7.1 Mains
filter
A mains filter or our add-on filter (optional) must be provided in the mains feeder between the power choke
and unit input.
Make sure that, depending on type, the filter can produce discharge currents up to some 100 mA in the event
of failure of one or two phases or major load unbalance in the AC current system.
Filters must therefore be
earthed before switching on !!!
The mains filters we recommend are given in the table below.
VECTORDRIVE DSV 5444-.../400
Arcotronics
3
3 x 400 V
50/60 Hz
5 A F.LL.D3.005A.AN.R1
6
3 x 400 V
50/60 Hz
8 A F.LL.D3.008A.AN.R1
9
3 x 400 V
50/60 Hz
8 A F.LL.D3.008A.AN.R1
12...25
3 x 400 V
50/60 Hz
16 A F.LL.D3.016A.AN.R1
32
3 x 400 V
50/60 Hz
25 A F.LL.D3.025A.AN.R1
45
3 x 400 V
50/60 Hz
36 A F.LL.D3.036A.AN.R1
60
3 x 400 V
50/60 Hz
50 A F.LL.D3.050A.AN.R1
80...100
3 x 400 V
50/60 Hz
80 A F.LL.D3.080A.AN.R1
130
3 x 400 V
50/60 Hz
110 A F.LL.D3.110A.AN.R1
3.7.2
Installation instructions for radio interference suppression
♦
The unit, power chokes, filter and accessories must be incorporated in a metal switch-cubicle.
♦
The line lengths between external mains filter and unit input must not exceed 0.5 m. The line must be
screened.
♦
Screened motor lines must be connected on both sides to the equipotential bonding. The total length of
screening breaks (e.g. for power chokes, motor fuses) must not exceed 10 cm per phase.
♦
Control lines and mains feeders should be laid separately from the motor cables.
♦
Connecting cables for braking resistors and intermediate circuit connections, where applicable, must be
screened.