User manual

25
Publication 1738-SG001B-EN-P
ArmorPoint I/O
Step 3 - Select:
y
the appropriate power unit
Selecting a Power Supply Unit
ArmorPoint I/O adapters have built-in POINTBus power supplies. All ArmorPoint I/O
modules are powered from the POINTBus by either an adapter or expansion power supply.
Power units are divided into three categories:
y Communication adapters with built-in power supply (dc-dc)
y Field power distributor
y Expansion power supply
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The 1738-FPD field power distributor passes through all ArmorPoint I/O backplane
signals, but does not provide additional POINTBus backplane power. The field power
distributor gives you the ability to change the field power distribution source for I/O
modules to the right of the 1738-FPD field power distributor. This facilitates logical or
functional partitioning of low-channel count, high I/O-mix applications using any of the
communication adapters.
You can use the 1738-FPD field power distributor with a broad range of voltage inputs
including 5V dc to 250V dc and/or 24V ac to 240V ac applications and I/O modules.
y Field-side voltage distribution module
y AC or DC input
y For use with all communication interfaces
y Partitioning (auxiliary power, major motion, minor motion, etc.)
y Starts new voltage distribution point
Consider using the 1738-FPD module to isolate field power segments.
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1738-ADN12
24V dc 10…28.8V dc
24V dc (+20% = 28.8V dc) @
400 mA
6 A for 10 ms Reverse polarity protected
Output voltage will stay
within specifications when
input drops out for 10 ms at
10V with max. load.
1738-ADN18
1738-ADN18P
1738-ADNX
1738-ACNR
1738-AENT
1738-APB
1738-EP24DC