
B–63325EN/03
7.TROUBLESHOOTING
417
The most likely cause is that power is not being supplied to the expansion
unit.
→ Check whether 24–V power is supplied to 1P and 31P of the expansion
unit.
If any of the above procedures and the corrective actions described in the
“FANUC Series 15i Connection Manual (Hardware)” (B–63323EN) fails
to clear a problem, contact FANUC.
The following information is required. Collect this before contacting
FANUC.
(1)Error
Examples)
· System alarm NMI SLC xx:yy occurred.
· No link was established.
(2)Time
Examples)
· During NC machining
· At power–on
(3)Frequency
Examples)
· The error occurs once or twice per week.
· The error occurs every time the machine is used.
(4)PMC system software series/version
Example)
· 404A series, version 01. (Can be checked by selecting
“PMCDGN” and then “TITLE.”)
(5)I/O Link configuration
Examples)
· Host: Series15i
· Group 0: Connector panel I/O unit
· Group 1: I/O Unit–A
(6)Allocated data
Example)
Address Group Base Slot Name
X000 0 0 1 CM16I
:
X032 1 0 1 ID16D
:
Y000 0 0 1 CM08O
7.17.5
In a Connector Panel
I/O Unit, No Data is
Output to an
Expansion Unit
7.17.6
If an I/O Link–related
Error can not be
Cleared