Rockwell Automation 1769-L31 CompactLogix Controller Installation Instructions - Manual (Page 14)

14 1769-L31 CompactLogix Controller
Publication 1769-IN069C-EN-P - May 2008
6. Attach the modules to the panel by using the mounting screws.
7. Repeat steps 1...6 for any remaining modules.
DIN Rail Mounting
The controller can be mounted on the following DIN rails:
 EN 50 022 - 35 x 7.5 mm (1.38 x 0.30 in.)
 EN 50 022 - 35 x 15 mm (1.38 x 0.59 in.)
Before mounting the controller on a DIN rail, close the DIN rail latches.
Press the DIN rail mounting area of the controller against the DIN rail. The
latches will momentarily open and lock into place.
This product is intended to be mounted to a well-grounded mounting surface
such as a metal panel. Additional grounding connections from the controller’s
grounding tab or DIN rail (if used) are not required unless the mounting
surface cannot be grounded.
Refer to Industrial Automation Wiring and Grounding Guidelines,
Allen-Bradley, publication
1770-4.1 for additional information.
IMPORTANT
If mounting more modules, mount only the last one of this group and put the
others aside. This reduces remounting time when you are drilling and
tapping the next group of modules.
ATTENTION
This product is grounded through the DIN rail to chassis ground. Use zinc
plated yellow-chromate steel DIN rail to assure proper grounding. The use of
other DIN rail materials (for example, aluminum or plastic) that can corrode,
oxidize, or are poor conductors, can result in improper or intermittent
grounding. Secure DIN rail to mounting surface approximately every 200 mm
(7.8 in.) and use end-anchors appropriately.