HEIDENHAIN iTNC 530 Service Manual page 266

If the battery was exchanged although the Gold cap was not loaded sufficiently, the battery-
Were any data lost?
buffered areas of the working memory are deleted. The non-volatile PLC markers and words
belong to this range.
If you have backed up the non-volatile PLC markers and words from the RAM to the hard disk
before replacing the battery, you can now restore them. --> See "Non-Volatile PLC Markers and
Words" on page 11 – 136.
If not, this may mean that several components of the machine must be set again (tool changer,
swivel head, etc.) --> Ask the machine tool builder!
It is possible, the datum and the time of the BIOS settings were lost. Set these values again.
--> See "Setting the System Time" on page 12 – 159.
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