Fanuc Power Mate i-D/H Operation Maintenance Handbook

9. ERROR CODE LIST
333
9.1.13 Alarms displayed on spindle servo unit and CNC
No. Message
Alarm
No.
Meaning Description Remedy
“A”
display
Program
ROM ab-
normality (not
installed)
Detects that
control program
is not started
(due to pro-
gram ROM not
installed, etc.)
Install normal
program
ROM
7n01 SPN_n_ :
MOTOR
OVERHEAT
AL–01 Motor over-
heat
Detects motor
speed exceed-
ing specified
speed exces-
sively.
Check load
status.
Cool motor
then reset
alarm.
7n02 SPN_n_ :
EX SPEED
ERROR
AL–02 Excessive
speed devi-
ation
Detects motor
speed exceed-
ing specified
speed exces-
sively.
Check load
status.
Reset alarm.
7n03 SPN_n_ :
FUSE ON
DC LINK
BLOWN
AL–03 DC link sec-
tion fuse
blown
Detects that
fuse F4 in DC
link section is
blown (models
30S and 40S).
Check power
transistors,
and so forth.
Replace fuse.
7n04 SPN_n_ :
INPUT
FUSE/
POWER
FAULT
AL–04 Input fuse
blown.
Input power
open phase.
Detects blown
fuse (F1 to F3),
open phase or
momentary fail-
ure of power
(models 30S
and 40S).
Replace fuse.
Check open
phase and
power supply
regenerative
circuit opera-
tion.
7n05 SPN_n_ :
POWER
SUPPLY
FUSE
BLOWN
AL–05 Control power
supply fuse
blown
Detects that
control power
supply fuse
AF2 or AF3 is
blown (models
30S and 40S).
Check for
control power
supply short
circuit .
Replace fuse.
7n07 SPN_n_ :
OVER-
SPEED
AL–07 Excessive
speed
Detects that
motor rotation
has exceeded
115% of its
rated speed.
Reset alarm.
7n08 SPN_n_ :
HIGH VOLT
INPUT
POWER
AL–08 High input
voltage
Detects that
switch is
flipped to 200
VAC when in-
put voltage is
230 VAC or
higher (models
30S and 40S).
Flip switch to
230 VAC.
7n09 SPN_n_ :
OVERHEAT
MAIN
CIRCUIT
AL–09 Excessive
load on main
circuit section
Detects abnor-
mal tempera-
ture rise of
power transis-
tor radiator.
Cool radiator
then reset
alarm.
7n10 SPN_n_ :
LOW VOLT
INPUT
POWER
AL–10 Low input
voltage
Detects drop in
input power
supply voltage.
Remove
cause, then
reset alarm.

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