Parker AC890 Product Manual page 139

Operating the Drive
A Smart Brake System
IMPORTANT
It is essential to use an isolation transformer on the supply to the Smart Brake drive, as shown above.
6-35
Page
4-Q Active Front End
Isolating
Transformer
External Pre-Charge
Control
DC Link
Healthy
U DC+
890 Drive
V
(Smart Brake)
W DC -
3-Phase
Line Choke
DC-
3%
U
Motor Acting as Brake
(Regenerating)
Common DC Link
DC
Link
Fuses
DC- DC+
DC+
DC Link
Healthy
890
890
Drive
Drive
U V W
V W
AC Motor AC Motor
Motor Acting as Load
(Motoring)
890SD (Standalone) Drive: Frame G, H & J
DC Link
Contactor
3-Phase
Line Choke
3%
3-Phase
Supply