Mitsubishi FREQROL-SFJ - Alarm and Warning Table

8.4
Alarm and warning table
ilarm
Motion
io.
Abbr.
Name
Description
(Note)
10
uv
UNDER VOL-
This alarm occurs if input sup-
A
TAGE
ply voltage goes down below the
specified level, or if instan-
taneous power failure lasting
for over 15ms occurs.
12
ME1
MEMORY ER-
This alarm occurs if read from,
A
ROR 1
or write to internal memory for
controller system control does
not go normally (memory is
checked when the control system
is turned on).
13
CE
EXT. CLOCK
This alarm occurs if error oc-
ERROR
curs in access time (2-ports me-
mory),
due to failure in exter-
nal clock,
during NC mode opera-
tion with FR-SFJ connected to
M300 CNC through bus line.
15
ME2
MEMORY ER-
This alarm occurs if 2-port me- A
ROR 2
mory for data communication
(when FR-SFJ is connected to‘
M300 series CNC) does not func-
tion properly.
17
BE BOARD ERROR This alarm occurs if any part of
A
control card is not in good con-
dition.
20
NS1
NO SIGNAL
This alarm occurs if signal from
A
(PLG)
motor built-in encoder is not at
normal level.
21
NS2
NO SIGNAL This alarm occurs if signal from
A
(SPINDLE
encoder for oriented spindle
ENC.)
stop is not input, or not at
normal level.
22
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