Care of fiber optic cables – Rockwell Automation 1768-M04SE CompactLogix SERCOS interface Module Installation Instructions User Manual
Page 20

20
Publication
1768-IN005A-EN-P - December 2005
Why Wait for the Lights to Turn Off Before I Remove a Module?
After you turn off the power, wait for all of the lights on the power
supply and controller to turn off before you disconnect any modules.
• When you turn off the power, the controller writes its project
to Flash memory.
• The MEM SAVE light turns on while the controller writes its
project to Flash memory.
• If you don’t wait for the lights to turn off, you will lose your
project.
Care of Fiber Optic Cables
Keep the fiber optic ports clean. Dirt and dust block the optic path
and reduce performance.
• Cap the ports and cables when you aren’t using them.
• Clean the ends of the cables with either:
– compressed air
– lint and strand free cotton swab and one of these cleaners:
Alcohols
Aliphatics
Other
methyl
hexane
soap solution
isopropyl
heptane
naphtha
isobutyl
For more information, see Fiber Optic Cable Installation and
Handling Instructions, publication number 2090-IN010.
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