Siemens SINUMERIK 840C Operator's Manual page 279

11 Maintenance
Note
11-4
On the CSB, product version D, the operating points of the battery monitor
have been adapted to the lithium battery.
If you combine the CSB, product version C, with a lithium battery or the CSB,
product version D, with an alkaline battery, it is possible that the advance
warning time of 4 weeks or the backup time of 1 year cannot be maintained
under adverse environmental conditions (temperature).
• Press the battery into the battery cover
• Fix the battery cover with the screw to the CSB.
Important
Batteries must never be thrown into fires.
Batteries must never be taken apart.
Used batteries must be disposed of separately from other waste (special waste
disposal). The national regulations valid in the country of installation must be
observed.
6FC5198-6AA60-0BP1 © Siemens AG 1999 All Rights Reserved
SINUMERIK 840C, OEM Version for Windows (BA)
01.99