Rockwell Automation Publication 1444-UM001D-EN-P - June 2018 51
Install the Dynamix 1444 Series Monitoring System Chapter 2
Upper Base Connector
Main Module Connectors
These connections provide duplicate terminals for twin, wide ranging DC
supplies (24V nominal).
You can use the duplicate terminals to daisy chain the power from one base to
the next (subject to an overall current limit and using a star connection to avoid
excessive voltage drop). There is internal diode protection against reverse
polarity and for the purposes of automatic supply selection when redundant
sources are connected to inputs 0 and 1. The supply side connections are
isolated from the remainder of the module circuitry.
Terminal Name Application Description
49 RET_1 Module Power Supply 1 Return
50 RET_1
51 +24V_1 Supply 1 +24V
52 +24V_1
53 RET_0 Supply 0 Return
54 RET_0
55 +24V_0 Supply 0 +24V
56 +24V_0
57 OVR Buffered Outputs Override High
58 OVR Override Low
59 Shield Shield Cable shield connection points
60 Shield
61 Shield
62 Shield
63 Shield
64 Shield
56 55 54 53 52 51 50 49
+24V-0 +24V-0 RET_0 RET_0 +24V-1 +24V-1 RET_1 RET_1
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