When you fire it up, open up the control cab, far to the left on the bottom is the system card, has a backup battery on the board aith a red button on the top, that is a button and light to test the backup battery. Replacements can be had pretty cheap from Fadal. If you loose that battery it will just loose your offsets and tool table, and any programs when you power down, and will require a cold start every time you start up. Not really too big a deal.
The system memory is on an EPROM, won't go away for 20+ years no matter if it has power or not. |