Mounting The Compact Fieldpoint Backplane - National Instruments Compact FieldPoint cFP-21 Series User Manual

Chapter 2 Installing Compact FieldPoint Hardware and Software

Mounting the Compact FieldPoint Backplane

As you mount the backplane, keep in mind the following requirements for space
Caution
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.
cFP-21xx and cFP-BP-x User Manual
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.
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.
To ensure maximum cooling efficiency, mount the Compact FieldPoint
system so that the I/O module vents are at the top and bottom.
Figure 2-1. cFP-BP-4 Backplane Properly Mounted
2-4
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