3BHS842007 E01 REV C
ACS6080
USER MANUAL
03 POWER ELECTRONICS AND CABINET FEATURES
3.3.4.1
Braking chopper unit
A BCU is used when the braking scenario requires consistent energy
dissipation. The energy generated during braking is dissipated in external
water-cooled resistors, which are not part of the drive.
Figure 3-22 BCU circuit diagram
Figure 3-23 BCU cabinet
(1) Resistor (external)
(2) BCU
(1) IGCT
DC (+)
DC (NP)
DC (-)
1
2
1