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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Chapter 7
Use I/O Modules with CompactLogix 5370 L1 Controllers
– 1734-FPD POINT I/O Field Power Distributor Module
- A field
power distributor module can also be installed between embedded I/O
modules and local expansion modules or between local expansion
modules.
The field power distributor module breaks the available field power
current between the modules to its left and right. With the field power
distributor module installed, the modules to its left can draw up to 3 A
of field power current, and the modules to its right can draw as much
field power current as allowed by the field power distributor.
For more information on the 1734-FPD POINT I/O Field Power
Distributor module, see the POINT I/O Field Power Distributor
Module Installation Instructions, publication
•
You must connect an external 24V DC power source to the FP+ and FP-
terminals on the removable connector on the controller to provide power
to input and output devices that are connected to the local expansion
modules.
–
Series A controllers require an extra external 24V DC power source for
the FP+ and FP- terminal connections. For more information on how
to connect an extra external power source for series A L1 controller to
the FP+ and FP- terminals, see
.
–
Series B controllers use the external 24V DC power source that is
connected to the VDC+ and VDC- terminals on the controller for the
FP+ and FP- terminal connections. Series B controllers can also use an
extra external 24V DC power source for the FP+ and FP- terminal
connections.
IMPORTANT
Remember, the field power distributor module changes only the level
of field power current available in the system. It does not affect the
level of POINTBus backplane current available.
IMPORTANT
Install a user-replaceable fuse with overcurrent protection of 4…6 A
in line between the incoming power and the FP+ terminal.
