Flexible Automation
Power supply modules
3-17
1070 072 143-101
Installation and replacement of the buffer battery
CAUTION 3.9
Data loss!
Removing the buffer battery when the power supply module is
switched off leads to the loss of all remanent data as well as the PLC
program in the RAM memory!
Only replace the buffer battery while the power supply module is
switched on!
L Unscrew the fastening screw of the lid
Batterie
+
-
Fastening screw
Fig. 3-13 NT3 and NT24, buffer battery
L Remove lid.
L Remove buffer battery.
L Gently knock the new buffer battery on a solid undersurface so that the
inner layer of oxide is destroyed.
L Insert new battery, observing the correct polarity.
L Put the lid back on and tighten the fastening screw.
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