18 Rockwell Automation Publication ENET-UM004B-EN-P - November 2015
Chapter 1 5000 Series EtherNet/IP Communication Module Overview
SA Power - Additional Notes
Remember the following:
• We recommend that you use a separate power supply for the SA power
connection from the power supply used with the MOD power connection.
• The actual current in a 5069 Compact I/O system changes based on the
operating conditions at a given time.
For example, the SA power bus current draw on some modules is different
if all channels power field devices or half of the channels power field
devices.
• Not all 5069 Compact I/O modules use SA power.
For example, the 5069-ARM, 5069-OB16, 5069-OB16F, 5069-OW4I,
and 5069-OX4I modules do not use SA power.
• Some 5069 Compact I/O modules use field-side power but do not draw it
from a SA power bus. The modules receive field-side power from an
external power supply that is connected to the module RTB.
For example, the 5069-OB16 and 5069-OB16F modules use Local
Actuator (LA) terminals, that is, LA+ and LA- terminals for all
module channels.
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