Rockwell Automation 1738-EP24DC ArmorPoint I/O 24V dc Expansion Power Supply - Manual

1 Publication 1738-IN020A-EN-E - June 2004
Installation Instructions
ArmorPoint I/O 24V dc Expansion Power
Supply, Series A
(Cat. No. 1738-EP24DC)
The 24V dc expansion power supply unit (Cat. no. 1738-EP24DC)
passes 24V dc field power to the I/O modules to the right of the
power supply. This unit extends the backplane bus power for up to
17 I/O modules to the right of the supply and creates a new field
voltage partition.
The expansion power supply also separates field power from I/O
modules to the left of the unit, effectively providing functional and
logical partitioning for:
• separating field power between input and output modules
• separating field power to the analog and digital modules
• grouping modules to perform a specific task or function
You can use multiple expansion power units with the ArmorPoint I/O
adapters to assemble a full system. For instance, if you are using the
1738-ADN adapter, you may use a 1738-EP24DC expansion power
unit to add additional modules in 5 to 17 module increments. For
example, if you had a 36 module system with a 1738 ArmorPoint I/O
adapter, you would have two 1738-EP24DC expansion power units to
provide more PointBus current for modules to the right of the supply.
1738-EP24DC
24V dc Power Supply
System
Power
Field
Power
A
U
X
P
O
W
E
R
24V dc Expansion
Power Supply
Wire marker
Mini connector
43770
LED
Indicators