Lust CDA34.006 - Mains Connection

3-6
CDA3000 Operation Manual
3 Installation
3.4 Mains
connection
Step Action Comment
1
Define the wire cross-section
dependent on maximum current and
ambient temperature.
Wire cross-section to VDE0100,
part 523
2
Wire the inverter module with the mains
filter, max. line length 0.3 m (with
unshielded cable)!
Step not applicable for BG1 to
BG4; up to 7.5 kW the mains
filter is built-in.
3
Wire the line choke see Appendix A.5
Reduces the voltage distortions
(THD) in the system and extends
the service life.
4
Install a circuit-breaker K1 (power
switch, contactor, etc.).
Do not connect the power!
5
Use the mains fuses (type gL) or
miniature circuit-breakers (trip
characteristic C) to cut the mains power
to all poles of the inverter.
To protect the line in accordance
with VDE636, part 1
Connection of the inverter module via a line choke with a short circuit voltage of 4 %
of the mains voltage (u
k
= 4 %) is obligatory:
1.
Where the inverter modules are connected to systems of environment class 3
and above, see EN 61000-2-4 see appendix A.6
2.
For all inverter modules with a recommended motor connected load
(4-pole standard motor) of 30 kVA or above (CDA34.060 ... CDA34.250)
3.
Where there is a requirement to comply with the limit values for variable-speed
electric drives (see standard EN 61800-3/ IEC 1800-3)
4.
Where there is a dc link between multiple inverter modules
Figure 3.5 Mains connection
CDA34.xxx
CDA32.xxx
X1
L1
N
L1
K1
K1
L2
L3
L1
N
X1
L3
L1
L2
FN
< 0,3 m
3 x 400/460 V
1 x 230 V