Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 113)

Publication 1398-5.2 – PDF 1997
Power Connections 7-9
DC Bus
TB1-1 and TB1-2 are the DC Bus connections for an external shunt.
!
Intro
ATTENTION: External shunt resistors connect directly
to the power bus. For safety reasons, external shunt resis-
tors must be enclosed.
!
Intro
ATTENTION: DC bus capacitors may retain hazardous
voltages after input power has been removed, but will nor-
mally discharge in several seconds. Before working on the
drive, measure the DC bus voltage to verify it has reached
a safe level or wait the full time interval listed on the warn-
ing on the front of the drive. Failure to observe this
precaution could result in severe bodily injury or loss of
life.
!
Intro
ATTENTION: Do not connect an external I/O power sup-
ply to the DC Bus. The DC+ and DC- terminals connect
directly to the power bus of the drive.