Maintaining Your Control
Replacing Your SLC 5/03
Your 5/03 processor provides back-up power for RAM through a replaceable
lithium battery This battery provides back-up for approximately 2 years. A
BATT LED on the front of the 5/03 processor alerts you when the battery
voltage has fallen below a threshold level
To replace the 5/03 processor lithium battery follow these steps:
ATTENTION: Do not remove the 5/03 processor from the SLC
500 chassis until all power is removed from the SLC 500 power
Remove power from the SLC 500 power supply.
Remove the 5/03 processor from the chassis by pressing the retainer clips
at both the top ,and bottom of the module and slide it out.
ATTENTION: Do not expose the 5/03 processor to surfaces or
other areas that may typically hold an electrostatic charge
Electrostatic charges can alter or destroy memory.
Unplug the battery connector. Refer to the figure below for battery
The 5/03 processor has a capacitor that provides at least 30
minutes of battery back-up while the battery is disconnected.
Data in RAM is not lost if the battery is replaced within 30