9.1 Battery replacement (6FC5247-0AA18-0AA0)
9-112
Copyright © Siemens AG 2006
SINUMERIK 810D Equipment Manual Configuration CCU (PHC) – 03/2006 Edition
The CCU module features battery-backed SRAMs and clock modules. The
back-up voltage is monitored by the control and a monitoring signal is output.
The battery must be replaced within 6 weeks of the monitoring responding. The
battery can be replaced after the controller has been switched off without any
loss of data, as data is retained for approximately 15 minutes.
The service life of the batteries used is a minimum of 3 years.
The battery must be removed before the module is put into storage.
The battery is located on the CCU module (see figure 9-1). Before removing the
CCU module, please comply with the ESD measures in the Preface and the
transportation and storage conditions specified in section 2.2.1 of this manual.
1. Switch off the control.
2. Follow the ESD rules!
3. Remove all connectors, first labeling them if necessary.
4. Loosen the 4 fixing screws of the CCU module and pull it out.
5. Remove the battery and pull out the battery connector. Data backup is
ensured for about 15 min by a capacitor.
6. Connect the new battery (ensuring correct polarity) and press it into its
holder.
7. Reinsert the CCU module and screw it tight.
8. Plug in all connectors correctly.
Backup time
Replacement of
the battery on the
CCU module
9 Maintenance and Service
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