Reliability Considerations - Allen-Bradley 1444-TSCX02-02RB User Manual

Chapter 2 Install the Dynamix 1444 Series Monitoring System
32
All system components can measure and monitor internal operating
temperatures, a feature that is highly recommended to be used to control
overall system operating temperature during normal use.
Module specifications indicate a maximum-internal operating temperature
reference for each module type.
Although the amount of (maximum) heat dissipation remains unchanged, use
of slightly assisted cooling, also called unducted airflow, has a considerable
impact (5...10 °C) (9...18 °F) on internal operating temperatures of system
components.
There is one configuration aspect that can reduce the dissipation load of each
DYN module by about 0.8 W, despite that typically the maximum heat
dissipation is fixed. (And actual dissipation heat dependent on module
configuration and operating state.)
When powered, the buffered outputs consume a significant amount of
quiescent operating power (approximately 0.8 W), which also imparts more
heat. Because the buffered outputs are infrequently used in most applications,
it is recommended that the buffered outputs not be powered during routine
operation.
See Buffered Outputs on page 62
outputs.

Reliability Considerations

Closely related to the previous section, overall system reliability is greatly
affected by operating temperatures. Therefore, it is highly recommended to
minimize the internal operating temperatures of the modules.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
for information on how to enable/disable the