Chapter 2 Installing Compact FieldPoint Hardware and Software
cFP-20xx and cFP-BP-x User Manual 2-4 ni.com
standard wall outlet (for example, 115 V for U.S. or 230 V for Europe).
Examples of Installation Category II are measurements performed on
household appliances, portable tools, and similar products.
• Installation Category III is for measurements performed in the building
installation at the distribution level. This category refers to
measurements on hard-wired equipment such as equipment in fixed
installations, distribution boards, and circuit breakers. Other examples
are wiring, including cables, bus-bars, junction boxes, switches,
socket-outlets in the fixed installation, and stationary motors with
permanent connections to fixed installations.
• Installation Category IV is for measurements performed at the primary
electrical supply installation (<1,000 V). Examples include electricity
meters and measurements on primary overcurrent protection devices
and on ripple control units.
Mounting the Compact FieldPoint Backplane
You can mount the cFP-BP-x backplane on a panel or in a standard
19 in. rack. You can mount the cFP-BP-4 on a 35 mm DIN rail. The
following sections contain instructions for all three mounting methods.
Before using any of these mounting methods, record the serial number from
the back of the backplane. You will be unable to read the serial number
after you have mounted the backplane.
Caution As you mount the backplane, keep in mind the following requirements for space
and cabling clearance:
• Allow 51–76 mm (2–3 in.) all around the backplane for air circulation.
• Allow 76 mm (3 in.) in front of the controller and 38 mm (1.5 in.) below the controller
for cabling clearance.
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