Mounting Considerations; System Power - Xycom 9462 System Manual

Mounting Considerations

Once you have established a location for the 9460/9462, install it in the enclosure ac-
cording to the instructions that follow:
•
Select a NEMA rated enclosure and place the unit to allow easy access to the system
ports.
•
Account for the unit's depth when choosing the depth of the enclosure.
•
Provide a NEMA 4 seal by mounting the unit in an approved enclosure that has a 14
gauge (0.075"/1.9mm thick) steel or (0.125"/3.2mm thick) aluminum front face.
•
Mount the unit in an upright position.
•
Place the unit at a comfortable working level.
•
Consider locations of accessories such as AC power outlets and lighting (interior
lighting and windows) for installation and maintenance convenience.
•
Prevent condensation by installing a thermostat-controlled heater or air conditioner.
•
To allow for maximum cooling, avoid obstructing the air flow.
•
Place any fans or blowers close to the heat generating devices. If using a fan, make
sure that outside air is not brought inside the enclosure unless a fabric or other reli-
able filter is used. This filtration prevents conductive particles or other harmful con-
taminants from entering the enclosure.
•
Do not select a location near equipment that generates excessive electromagnetic in-
terference (EMI) or radio frequency interface (RFI) (equipment such as high power
welding machines, induction heating equipment, and large motor starters).
•
Place incoming power line devices (such as isolation or constant voltage transform-
ers, local power disconnects, and surge suppressers) away from the system. The
proper location of incoming line devices keeps power wire runs as short as possible
and minimizes electrical noise transmitted to the unit.
•
Make sure the location does not exceed the unit's shock, vibration, and temperature
specifications.
•
Install in the rack or panel in such a way as to ensure that it does not cause a hazard
from uneven mechanical loading.
•
Incorporate a readily accessible disconnect device in the fixed wiring on permanently
connected equipment.
•
Avoid circuit overloading of the supply circuit.

System Power

Using isolation transformers on the incoming AC power line to the system is always a
good practice. An isolation transformer is especially desirable in cases in which heavy
equipment is likely to introduce noise onto the AC line. The isolation transformer can
also serve as a step-down transformer to reduce the incoming line voltage to a desired
level. The transformer should have a sufficient power rating (units of volt-amperes) to
supply the load adequately.
Proper grounding is essential to all safe electrical installations. Refer to the relevant Fed-
eral, State/Provincial, and local electric codes which provides data such as the size and
types of conductors, color codes and connections necessary for safe grounding of electri-
cal components. The code specifies that a grounding path must be permanent (no solder),
Chapter 3 – Installation
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