Parker 890CD - 4.1: Power-up with 24 V DC

890CS & 890CD Common Bus Units
Page 4-34 890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
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4.1: Power-up with 24V DC
You must provide an external 0V and +24V DC
(±10%) control supply. Each unit, including the
Common Bus Supply, can draw 2A, so for
example: 3 units = 6A.
Connect 24V DC to terminal X01/01 or
X02/02, and 0V (24V) to terminal X01/03 or
X01/04 on the 890CS Common Bus Supply.
The units are protected against reversal of this
24V DC supply.
Use the spare X01 terminals to daisy-chain the
control supply to terminal X13 on the 890CD
Common Bus Drive(s) in the system.
The diagram shows the control supply daisy-
chained between the 890 Supply and Drive
units.
IMPORTANT This Control Supply will power the units for
configuration purposes. It is not required by
the 890CD Common Bus Drive when the DC
link is present, but can be left connected. It is
always required by the 890CS Common Bus
Supply.
24V DC
24V DC
890CS
Supply
890CD
Drives