California Instruments BPS Series, Руководство пользователя

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AMETEK Programmable Power
BPS Series User Manual M440077-01 Rev A 37
4.3 Mechanical Installation
The BPS75 and BPS90 products are completely self-contained power sources. They are to be used free
standing on a solid surface. The units are fan cooled, drawing air in from the front and exhausting at the
rear. The front and back of each unit must be kept clear of obstruction and a 6” clearance must be
maintained to the rear. Special consideration of overall airflow characteristics and the resultant internal
heat rise must be considered at all times to avoid self heating and over temperature problems.
4.4 AC Input Connections and Wiring
Three-phase Delta or Y AC input voltage of sufficient amperage (consult AC input specifications for
maximum AC current per phase) is required to power the BPS Series.
Note: AC power should be routed through a properly sized and rated three-phase PROTECTIVE
CIRCUIT BREAKER or similar branch circuit protection device with disconnect capability.
This will protect building wiring and other circuits from possible damage or shutdown in case
of a system problem. It will also facilitate removing AC input power to the BPS system in case
of service or reconfiguration requirements.
Note: AC input wiring and connections must conform to all national and local electrical safety
codes that may apply. Always consult a qualified electrician prior to installation of any BPS
System.
AC input connections are to be made directly to the input fuse block. The input fuse block is located on
the lower left hand corner of the front of the BPS chassis. To access the input fuse connection block, the
protective front cover needs to be removed first.
CAUTION: Always disconnect any input power completely when removing any
protective cover and allow the internal capacitors to fully discharge (minimum of 15
mins) before removing any cover.) See Figure 4-2 for details.
No wiring for AC input connections is provided with the BPS Series and must be provided by the end
user or installer. Input wiring should be entered through the right hand side (when facing the back of the
BPS cabinet, see Figure 4-4) wire access opening located at the rear bottom of the BPS chassis. A wire
channel (marked as [2] in figure below) is provided below the input transformer to allow the input wiring
to be routed to the front of the unit where the connections are to be made.
WARNING: The power source's input connection wiring gage (size) must be
sized for the maximum input current rating to ensure user safety and avoid
possible power source damage, regardless of the actual output load
.