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9.
MAINTENANCE
/MELSEC
9.2 Battery Changing Procedure
Fig. 9.1 shows the battery changing procedure.
Battery change
9
Prepare new battery.
r
Switch off PC Power.
a
Unload AD51.
-
Remove battery from holder.
+
holder and connect
battery connector.
Load A051.
I
Switch on PC power.
*
\
'
I
Battery I A ~ B A T I
Negative lead wire (blue)
TO prevent the lor* of program and latched
data a capacitor is provided to give 11 minutes
RAM back
up during battery changes.
Fig. 9.1 Battery Changing Procedure
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