Bosch CL300 Manual page 63

Flexible Automation
4.1.5 Buffer Battery Installation and Replacement
If the buffer battery has been used for buffering remanent timers, counters and markers,
it must be replaced when the CL300 is switched ON to retain buffered the remanent timers,
Installation in the NT300
Replacement in the NT300
Caution
counters and markers.
Unscrew the 2 Phillips screws and take out battery box (see
L
Fig. 4−3).
Insert buffer battery (2). (Observe the polarity!)
L
Insert battery box and fasten Phillips screws.
L
NT
300
I
O
Fig. 4−3 Buffer Battery NT300
Make sure that the CL300 is switched ON
L
System Modules
Phillips screws
4−11