Fanuc Power Mate i-D/H Maintenance Manual

APPENDIX
B63175EN/03
A. ALARM LIST
497
No. RemedyDescriptionMeaning
Alarm
No.
Message
7n16 SPN_n_ : RAM FAULT AL16 RAM
abnormality
Detects abnormality in RAM
for external data. This check is
made only when power is
turned on.
Remove cause, then reset
alarm.
7n18 SPN_n_ : SUMCHECK
ERROR PGM
DATA
AL18 Program ROM
sum check
error
Detects program ROM data
error.This check is made only
when power is turned on.
Remove cause, then reset
alarm.
7n19 SPN_n_ : EX OFFSET
CURRENT U
AL19 Excessive U
phase current
detection
circuit offset
Detects excessive U phase
current detection circuit offset.
This check is made only when
power is turned on.
Remove cause, then reset
alarm.
7n20 SPN_n_ : EX OFFSET
CURRENT V
AL20 Excessive V
phase current
detection
circuit offset
Detects excessive V phase
current detection circuit offset.
This check is made only when
power is turned on.
Remove cause, then reset
alarm.
7n24 SPN_n_ : SERIAL
TRANSFER
ERROR
AL24 Serial transfer
data error
Detects serial transfer data
error (such as NC power
supply turned off, etc.)
Remove cause, then reset
alarm.
7n25 SPN_n_ : SERIAL
TRANSFER
STOP
AL25 Serial data
transfer
stopped
Detects that serial data
transfer has stopped.
Remove cause, then reset
alarm.
7n27 SPN_n_ : DISCONNECT
POSCODER
AL27 Position coder
signal
disconnection
Detects abnormality in position
coder signal (such as
unconnected cable and
adjustment error).
Remove cause, then reset
alarm.
7n29 SPN_n_ : SHORTTIME
OVERLOAD
AL29 Shorttime
overload
Detects that overload has
been continuously 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
AL30 Input circuit
overcurrent
Detects overcurrent flowing in
input circuit.
Remove cause, then reset
alarm.
7n31 SPN_n_ : MOTOR LOCK
OR VSIG LOS
AL31 Speed
detection
signal
disconnection
motor restraint
alarm or motor
is clamped.
Detects that motor cannot
rotate at specified speed or it is
detected that the motor is
clamped. (but rotates at very
slow speed or has stopped).
(This includes checking of
speed detection signal cable.)
Remove cause, then reset
alarm.
7n32 SPN_n_ : RAM FAULT
SERIAL LSI
AL32 Abnormality in
RAM inside the
LSI used for
serial data
transfer. This
check is made
only when
power is turned
on.
Detects abnormality in RAM
inside the LSI used for serial
data transfer. This check is
made only when power is
turned on.
Remove cause, then reset
alarm.

Leave a Reply

Your email address will not be published. Required fields are marked *