Rockwell Automation 1747-L5xx SLC 500 Modular Hardware Style User Manual - Manual (Page 99)

Publication 1747-UM011G-EN-P - June 2008
Installing Your Hardware Components 99
2. Install the hardware for the top mounting tabs.
3. Slide the chassis over the installed hardware and tighten the
screws.
TIP
Scrape paint off the back panel for an electrical connection
between the chassis and back panel.
ATTENTION
If the chassis mounting tabs do not lay flat before the
screws are tightened, use additional washers as shims so
the chassis will not warp when tightening the screws.
Warping the chassis could damage the backplane and
cause poor connections.
M4 or M5 (#10 or #12) phillips screw
and star washer (or SEM screw)