Fanuc Power Mate i-D/H Operation Maintenance Handbook

9. ERROR CODE LIST
335
No. RemedyDescriptionMeaning
Alarm
No.
Message
7n24 SPN_n_ :
SERIAL
TRANSFER
ERROR
AL–24 Serial transfer
data error
Detects serial
transfer data
error (such as
NC power sup-
ply turned off,
etc.)
Remove
cause, then
reset alarm.
7n25 SPN_n_ :
SERIAL
TRANSFER
STOP
AL–25 Serial data
transfer
stopped
Detects that
serial data
transfer has
stopped.
Remove
cause, then
reset alarm.
7n27 SPN_n_ :
DISCON-
NECT
POS–COD-
ER
AL–27 Position cod-
er signal dis-
connection
Detects ab-
normality in
position coder
signal (such as
unconnected
cable and ad-
justment error).
Remove
cause, then
reset alarm.
7n29 SPN_n_ :
SHORT-
TIME
OVER-
LOAD
AL–29 Short–time
overload
Detects that
overload has
been continu-
ously applied
for some period
of time (such
as restraining
motor shaft in
positioning).
Remove
cause, then
reset alarm.
7n30 SPN_n_ :
OVERCUR-
RENT POW
CIRCUIT
AL–30 Input circuit
overcurrent
Detects over-
current flowing
in input circuit.
Remove
cause, then
reset alarm.
7n31 SPN_n_ :
MOTOR
LOCK OR
V–SIG LOS
AL–31 Speed detec-
tion signal
disconnection
motor re-
straint alarm
or motor is
clamped.
Detects that
motor cannot
rotate at speci-
fied speed or it
is detected that
the motor is
clamped. (but
rotates at very
slow speed or
has stopped).
(This includes
checking of
speed detec-
tion signal
cable.)
Remove
cause, then
reset alarm.
7n32 SPN_n_ :
RAM
FAULT
SERIAL LSI
AL–32 Abnormality
in RAM inside
the LSI used
for serial data
transfer. This
check is
made only
when power
is turned on.
Detects ab-
normality in
RAM inside the
LSI used for
serial data
transfer. This
check is made
only when pow-
er is turned on.
Remove
cause, then
reset alarm.

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