ABB ACS6000 - BCU Cabinet; BCU Circuit Diagram; Braking Chopper Unit

3BHS212794 E01 REV M ACS6000 USER MANUAL 75/278
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 3-26 BCU circuit diagram
Figure 3-27 BCU cabinet
(1) Resistor (external) (2) BCU
(1) IGCT
DC (+)
DC (NP)
DC (-)
1
2
1