HEIDENHAIN iTNC 530 687
18.4 Exchanging the Buffer Battery
18.4 Exchanging the Buffer Battery
A buffer battery supplies the TNC with current to prevent the data in
RAM memory from being lost when the TNC is switched off.
If the TNC displays the error message Exchange buffer battery, then
you must replace the battery:
Battery type:1 Lithium battery, type CR 2450N (Renata) ID 315 878-01
1 The backup battery is at the back of the MC 422 C
2 Exchange the battery. The battery contact accepts a new battery
only in the correct orientation
Caution: Danger of life!
To exchange the buffer battery, first switch off the TNC!
The buffer battery must be exchanged only by trained
service personnel.
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