
B–63325EN/03
7.TROUBLESHOOTING
391
The CPU card, on which the DRAM SUM ERROR has been detected, is
displayed in (1).
The most likely cause is that the CPU card is defective. Replace the card.
The following message appears in (1):
See Fig. 7.11.1.
A disconnection alarm was detected in FSSB.
The first page of the system alarm is displayed as shown below:
FANUC SERIES 15I F000B
SYS_ALM 116 FSSB DISCONNECTION(MAIN <– AMP1)(1)
AXIS CONTROL CARD (2)
ERROR OCCURRED AT 1998/10/16 14:24:03
PROGRAM COUNTER : xxxxxxxxH
ACT TASK : xxxxxxxxH
ACCESS ADDRESS : xxxxxxxxH
ACCESS DATA : xxxxxxxx xxxxxxxxH
ACCESS OPERATION : xxxxxxxx
+––––––––––––––––––––––––––––––––––––––––––––––––––––––––––+
| THE SYSTEM ALARM HAS OCCURRED, THE SYSTEM HAS STOPPED. |
+––––––––––––––––––––––––––––––––––––––––––––––––––––––––––+
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D Cause and action
D CPU card mounting
position
7.11.3
System Alarms 114 to
127 (FSSB
Disconnection Alarms)
D Description
D Screen displayed upon
the occurrence of the
error