Chapter 3: Installing the PA PowerStation
Selecting a Location
PA PowerStation User Guide
29
chemicals other than those listed in Faceplate Chemical Resistance on
page 13.
Electrical Guidelines
To minimize unwanted electrical interference, select a location away
from machinery that produces intense electrical noise. If you cannot
do this, isolate input power to the unit and separate all data
communication cables used with the unit from AC power lines.
See Electrical Specifications on page 11 for a list of the PA
PowerStation’s electrical specifications. Make sure that your power
source is compatible with the PowerStation before starting the unit.
Field Terminal Wiring Requirements
In order to comply with UL 508 and 1604 requirements, use copper
wire with 60C or 60/75C insulation and a tightening torque of 7.0 lb/
in. (0.79 N-m) when connecting field terminal wiring to the
PowerStation.
Temperature
Guidelines
You can safely operate the PA PowerStation within the temperature
range specified in Environmental Specifications on page 10. However,
if you are using a protective enclosure, remember that the temperature
within an enclosure is generally higher than the external temperature.
If the PowerStation is operating inside an enclosure at temperature
levels above its rated ambient temperature, you must cool the
enclosure.
Enclosure
Guidelines
Select an enclosure that is large enough to allow free airflow in and
around the unit. You should allow a minimum of 2 inches between the
enclosure and the top, bottom, and sides of the PA PowerStation.
Also, make sure that the surface of the enclosure on which the PA
PowerStation is mounted is flat and free of raised or depressed areas.
AC Power
Guidelines
You will need to read the AC Power Guidelines only if you intend to
operate the PA PowerStation using AC power. If you intend to operate
the PowerStation using DC power, skip to Preparing for Installation
on page 31.
The PA PowerStation ordinarily uses DC power. However, you can
operate the PowerStation with AC power by using an optional AC
Power Supply available from CTC. If you purchased the optional AC
Power Supply, you must select a location that provides protection
from dust, oil, moisture, and corrosive vapors. If your enclosure is
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