Backup batteries

Lithium backup batteries of type AA with 2.3 Ah are used in the power supply modules of all SIMATIC PCS 7 automation systems AS 412 to AS 417. Since lithium batteries are easily inflammable, more rigorous transport and storage regulations apply to them.

To avoid subjecting the AS bundles to these more rigorous transport and storage regulations, the backup batteries must be ordered and delivered separately (order no. 6ES7971-0BA00).

The following backup batteries are required depending on the configuration of the AS bundles:

• SIMATIC PCS 7 AS Single Station:
  • With 1 power supply module: 2 units
  • With 2 redundant power supply modules: 4 units
• SIMATIC PCS 7 AS Redundancy Station:
  • With 2 power supply modules: 4 units
  • With 2 x 2 redundant power supply modules: 8 units