Connecting
3.3 Connecting the interfaces on the PPU
Electrical Installation Manual
Operating Instructions, 12/2014, 6FC5397-2EP10-0BA0
39
3.3.13
Battery interface
A battery has been pre-assembled on the back cover of the PPU.
The battery is not connected when delivered. You must plug the battery connector into the
battery interface by yourself before switching the controller on. You can access it after
removing the maintenance door:
①
Maintenance door
③
Battery interface
②
Battery
④
Battery connector
Note
When connecting the battery, ensure that the tab on the connector faces the battery;
otherwise, the alarm "NCK battery alarm" will be output after you switch on the controller,
and you could lose your data after an unexpected power failure if you do not insert the
battery connector correctly.