B–63505EN/02
7.TROUBLESHOOTING
287
NOTE
1 For the specifications and mounting locations of the
modules, see Subsection 2.2.1.
2 When the FROM and SRAM module is replaced
S The NC data stored in the memory is lost. Reenter the NC
data according to the section describing data input/output.
S The ladder program stored in the memory is lost. Reenter
the ladder program according to the section describing
PMC data input/output.
S When the macro executor is used, the macro data is also
lost. Reenter the macro data after replacing the module.
S Use a replacement module that holds software equivalent
to or upwardly compatible with the currently used
software.
3 When the memory and spindle module is replaced
S The NC data stored in the memory is lost. Reenter the NC
data according to the section describing data input/output.
4 When the main board is replaced, all data stored in the
memory is lost. Reset the NC data according to the section
describing data input/output.
(4)Drop in the voltage of the memory backup battery
A battery alarm is issued when the voltage has decreased to 2.6 V or
less. (Rating: 3.0 V)
When the voltage of the memory backup battery has decreased, “BAT”
blinks in the lower part of the screen.
If a battery alarm is issued, replace the battery with a new lithium
battery as soon as possible.
NOTE
Replace the battery as soon as possible according to
Subsection 2.6.1.