Siemens S7-300 Installation Manual page 156

0DLQWHQDQFH
+RZ RIWHQ GR , KDYH WR UHSODFH LW"
EDFNXS EDWWHU\ We recommend an annual replacement
5HFKDUJHDEOH EDWWHU\ Never needs to be replaced.
'LVSRVDO
Note your local regulations/directives on battery disposal.
6WRULQJ EDFNXS EDWWHULHV
Store back-up batteries in a dry and cool place.
The shelf life of back-up batteries is five years.
:DUQLQJ
If heated or damaged, back-up batteries can ignite or explode and cause severe
burning injury.
Store back-up batteries in a dry and cool place.
5XOHV IRU WKH KDQGOLQJ RI EDFNXS EDWWHULHV
To avoid risk of danger when handling back-up batteries, note the following rules:
:DUQLQJ
Improper handling of back-up batteries could result in injury or damage to property.
Improperly handled back-up batteries can explode and cause severe burns.
Do not
FKDUJH
KHDW XS
LQFLQHUDWH
GULOO WKURXJK
VTXDVK
VKRUW-circuit back-up batteries.
5XOHV IRU KDQGOLQJ WKH UHFKDUJHDEOH EDWWHU\
Do not charge rechargeable batteries in devices other than the CPU. The
rechargeable battery must always be charged in the CPU, in POWER ON state of
the CPU.
10-10
S7-300 Automation System, Hardware and Installation: CPU 312IFM - 318-2 DP
A5E00203919-01