3-4
|
ni.com
Chapter 3
Safety Information
Note
The thermostats are configured so they will not activate under normal
operating conditions, recommended power levels, cooling configuration, and
ambient environment. If the thermostats are triggered and no equipment fault can be
found in the system, the system may be configured in such a way that there is an
extreme thermal load in a small area of the system. Care should be taken to configure
the system so thermal loads are spread evenly throughout the interior of the system.
Caution
Switch off the Main Breaker before attempting to reset the thermostats.
Emergency Power Off (EPO) Panel
The EPO Panel can be used to disable the PEP, PDU(s), optional UPS, and any equipment
connected to them.
EPO Temperature Controller
The secondary temperature controller on the EPO panel is user configurable and can be used to
control the operation of the system for thermal performance, but is not a safety temperature
protective device.
Circuit Protection
Several layers of circuit protection are designed into the systems. The Power Entry Panel has
circuit protection to ensure the overall system does not draw current beyond the Mains power
limit.
Walls and Rear Door
All configurations come with pre-installed removable side walls and locking rear door. Side
panels utilize quarter-turn inset screws for easy serviceability. The rear door may be easily
removed using the spring-loaded hinges attaching it to the rack frame.
Grounding
The Power Entry Panel must be connected to a power source that has a proper ground. You
should be able to choose any piece of equipment in the test system that is an end power consumer
and follow its path to ground back to the Power Entry Panel.