Rockwell Automation 1769-PB4 Compact I/O Expansion Power Supplies - Manuel (Page 11)

Compact I/O Expansion Power Supplies 11
Publication 1769-IN028B-EN-P - October 2008
Mount an I/O Expansion Power Supply
Minimum Spacing
Maintain spacing from enclosure walls, wireways, adjacent equipment, and so forth. Allow 50
mm (2 in.) of space on all sides for adequate ventilation.
Prevent Excessive Heat
For most applications, normal convective cooling keeps the system within the specified
operating range. Verify that the specified temperature range is maintained. Proper spacing of
components within an enclosure is usually sufficient for heat dissipation.
In some applications, a substantial amount of heat is produced by other equipment inside or
outside the enclosure. In this case, place blower fans inside the enclosure to assist in air
circulation and to reduce hot spots near the system.
ATTENTION
During panel or DIN rail mounting of all devices, be sure that all debris (for example,
metal chips, wire strands) is kept from falling into the module. Debris that falls into the
module could cause damage on power up.
Item Description
1 This could be an end cap, controller, adapter, or
expansion cable depending on your system
configuration.
2 This could be an end cap or expansion cable
depending on your system configuration.
Po
wer Supp
ly
Compac
t I/
O
Compac
t I/
O
Compac
t I/
O
Compac
t I/
O
Top
Bottom
Side Side
End Ca
p
End Cap
(1) (2)
50 mm
(2 in.)
50 mm
(2 in.)