
Number of
files
SRAM size
APPENDIX
D. BOOT SYSTEM
B–62755EN/01
490
1 Name of backup file
The name of the backup file written to the memory card by the SRAM
backup function depends on the size of the SRAM installed in the
CNC.
When the size of SRAM is 1MB or larger, backup files are created in
units of 512 KB.
1 2 3 4 5
256KB SRAM256A.FDB
1.5MB SRAM0_5A.FDB
1.0MB SRAM1_0A.FDB SRAM1_0B.FDB
1.5MB SRAM1_5A.FDB SRAM1_5B.FDB SRAM1_5C.FDB
2.5MB SRAM2_5A.FDB SRAM2_5B.FDB SRAM2_5C.FDB SRAM2_5D.FDB SRAM2_5E.FDB
2 When the OPT2, OPT3, or LCB board is mounted in addition to the
main board
The backup file for SRAM on the OPT2, OPT3, or LCB board will
have the following extension:
Board MAIN OPT2 OPT3 LCB
Extension FDB OP2 OP3 LCB
CAUTION
If data such as parameters was restored from a memory
card to SRAM in a system using an absolute pulse coder,
set bit 4 (APZ) of parameter No. 1815 to 0, and set the
reference point again.
D Others