
11.TROUBLESHOOTING B-63945EN/02
- 622 -
11.25.4 System Alarm 401 (EXTERNAL BUS INVALID ADDRESS)
Description
A problem occurred on a CNC bus.
Causes
The printed circuit board may be defective or external noise may
affect the bus.
Countermeasures
Replace the displayed most possibly faulty component. In addition,
the main board, or “MASTER PCB” or “SLAVE PCB” displayed on
the system alarm screen may be defective.
This error may also be caused by external noise.
Check whether there is a noise origin around the machine and whether
the machine is grounded properly.
SERIES 30I G001Z
SYS_ALM401 EXTERNAL BUS INVALID ADDRESS
MAIN BOARD
2004/04/21 20:34:16
PROGRAM COUNTER : 1000B52CH
ACT TASK : 01000010H
ACCESS ADDRESS : -
ACCESS DATA : -
ACCESS OPERATION : -
BUS MASTER PCB : MAIN BOARD
+--+----------+-----------------------------------------------------+
02 MAIN BOARD 03012003 22110000 80010000 00000000 00010000 00000000
FFFFFFFF FFFFFFFF 68C08216 70FE0000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
BUS SLAVE PCB : CPU CARD
+--+----------+-----------------------------------------------------+
00 CPU CARD 02071004 20100000 00000000 00000000 00000000 00000000
FFFFFFFF FFFFFFFF 10B0FC00 CFF90001 68C30061 82160010
000000F0 00000000 00010000 00000000 00000000
INFORMATION REGISTER
+--+----------+-----------------------------------------------------+
02 MAIN BOARD 00000000 00000000 00000000 00000000
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