Lenze EVF9383 - Manual (Page 91)

Electrical installation
Motor connection
Fan connection
5
l
91 EDKVF9383 DE/EN/FR 4.0
5.5 Motor connection
ƒ To comply with the EMC regulations, Lenze recommends to use shielded motor
cables.
ƒ Shield clamps are not included in the scope of supply.
(
Stop!
The user is responsible for sufficient strain relief!
Parallel connection of master and slave (motor side)
In order to connect the motor cables of master and slave to the motor, the outputs must
be connected in parallel.
It is important for the parallel connection of the inverter outputs that the outputs are
decoupled by means of an inductance between master and slave. The length of the motor
cables determine whether the inductance of the cables is sufficient for a decoupling.
2 motor connections ensure sufficient decoupling.
ƒ Decoupling via motor chokes
If the single motor cable length is
£ 10 m, master and slave must be connected in parallel
via chokes on the motor side to achieve a sufficient decoupling between master and
slave.
ƒ Decoupling via motor cables
If the single motor cable length is > 10 m, the motor cables of master and slave can be
connected in parallel at the motor to achieve a sufficient decoupling between master
and slave.
Decoupling via motor chokes Decoupling via motor cables
M
3~
PE PE U U V V W W
Z1 Z2
PE
£
10
m PE PE
PE
PE U V W
M
3~
PE U V W
PE
PE
PE
>10
m
9300VEC026 9300VEC008
Fig. 5−11 Variants for parallel connection of master and slave (motor side)
Z1, Z2 Motor choke for controller
ELM3−0003H275 EVF9381
ELM3−0002H320 EVF9382
ELM3−0002H410 EVF9383