
7. TROUBLESHOOTING
B–63785EN/01
408
An error was detected in the SRAM module.
The first page of the system alarm is displayed as shown below:
FANUC SERIES 15I F000B
SYS_ALM 500 SRAM DATA ERROR(SRAM MODULE)
CPU CARD(MAIN)
ERROR OCCURRED AT 1998/10/16 14:24:03
PROGRAM COUNTER : xxxxxxxxH
ACT TASK : xxxxxxxxH
ACCESS ADDRESS : xxxxxxxxH
ACCESS DATA : –
ACCESS OPERATION : xxxxxxxx
+––––––––––––––––––––––––––––––––––––––––––––––––––––––––––+
| THE SYSTEM ALARM HAS OCCURRED, THE SYSTEM HAS STOPPED. |
+––––––––––––––––––––––––––––––––––––––––––––––––––––––––––+
PAGE UP OR DOWN(PAGE 1/ 6)
The most likely cause is that the SRAM module is defective.
WARNING
This alarm indicates that the contents of program memory
have been lost. If you change the contents (such as
parameters) of program memory during normal operation,
always make a backup to a medium such as a floppy disk.
7.11.9
System Alarm 500
(SRAM DATA ERROR
(SRAM MODULE))
D Description
D Screen at the occurrence
of the error
D Cause and action
D Warning