
Publication 1747-UM011G-EN-P - June 2008
136
Maintaining Your Control System
Install and Replace the
Battery of the SLC 5/01 or
SLC 5/02 Processor
Back-up power for RAM is provided by a replaceable battery. The
lithium battery provides back-up for approximately five years for the
1747-L511 processor and two years for the 1747-L514 and 1747-L524
processor. A red BATTERY LOW status indicator alerts you when the
battery voltage has fallen below a threshold level.
Once the BATTERY LOW status indicator goes on, do
not
remove
processor power or your program may be lost. Replace the battery as
soon as possible. You can replace the battery while the processor is
powered.
Follow this procedure to install or replace the battery.
1.
Open the door of the processor.
2.
If you are installing a battery in a new processor (battery never
installed before), remove the jumper from the battery connector
socket. Store the jumper in safe place for possible future use
without the battery.
If you are replacing an old battery, unplug the existing battery
connector and remove from the retainer clips. The figure below
shows where to install the battery in a SLC 5/01 or SLC 5/02
processor.
3.
Insert a new or replacement battery in the holder making sure it
is held in by the retainer clips.
4.
Plug the battery connector into the socket.
5.
Close the processor door.
+
Battery
Connector
Retainer
Clips
White
Lead
Red Lead
Battery
Summary of Contents for SLC 500
Page 4: ...Publication 1747 UM011G EN P June 2008 4 Summary of Changes Notes ...
Page 12: ...Publication 1747 UM011G EN P June 2008 12 Table of Contents Glossary Index ...
Page 26: ...Publication 1747 UM011G EN P June 2008 26 Quick Start for Experienced Users Notes ...
Page 54: ...Publication 1747 UM011G EN P June 2008 54 Selecting Your Hardware Components Notes ...
Page 74: ...Publication 1747 UM011G EN P June 2008 74 System Installation Recommendations Notes ...
Page 110: ...Publication 1747 UM011G EN P June 2008 110 Installing Your Hardware Components Notes ...
Page 168: ...Publication 1747 UM011G EN P June 2008 168 Troubleshooting Notes ...
Page 174: ...Publication 1747 UM011G EN P June 2008 174 Replacement Parts Notes ...
Page 180: ...Publication 1747 UM011G EN P June 2008 180 Specifications ...
Page 200: ...Publication 1747 UM011G EN P June 2008 200 Setting Up the DH 485 Network Notes ...
Page 286: ...Publication 1747 UM011G EN P June 2008 286 Glossary Notes ...