Lenze 520 Series - Qvercurrent Release; 600 DC Bus Connection; External Fuses; Mains Chokes for DC Bus Connection

4Q - DC Chopper 520 series
6. DC BUS CONNECTION
With DC bus connection, an exchange ct ~nergv ~t.veen inoiv:dua devL~s is
possible.
The efficiency of the whole system can Dc imprave‘i the mains bad and Ü~e use of
external brake resistors reduced to a minimum in tr~e case that:
- the kinetic energy of some drives in the brake/generator mode is transformed into
electrical energy and fed back into the DC bus
- and that this energy is required by drives in the motor mode ccnnected in parallel
6.1 EXTERNAL FUSES
DC bus fuses Line fuses
Motor lines
522 E Type
Part no.
Size
Amount
Setting
Diazet T4A/500V
306 670
E27
2 pcs.
Overcurrent release
325 698
6-10 A
7A
524 E Type
Part no.
Size
Amaunt
Setting
Diazet T1OA/500V
306 672
E27
2 pcs.
Overcurrent release
325 700
16-24 A
20A
6.2 MAINS CHOKES FOR DC BUS CONNECTION
c
a
Part no. m
mH
A
A
522 324 752 21.24 29
524 324 753 2•1~9 214
Lenze