Fanuc Power Mate i-D/H Operator Manual

G. ALARM LIST
B–63174EN/03
APPENDIX
612
16) Alarms Displayed on spindle Servo Unit
No. Message
Alarm
No.
Meaning Description Remedy
“A”
display
Program ROM
abnormality
(not installed)
Detects that control program
is not started (due to program
ROM not installed, etc.)
Install normal program
ROM
7n01 SPN_n_ : MOTOR
OVERHEAT
AL–01 Motor
overheat
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 momen-
tary failure of power (models
30S and 40S).
Replace fuse.
Check open phase and
power supply regenerative
circuit operation.
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_ : OVERSPEED 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 volt-
age
Detects that switch is flipped
to 200 VAC when input volt-
age 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 abnormal tempera-
ture rise of power transistor
radiator.
Cool radiator then reset
alarm.
7n10 SPN_n_ : LOW VOLT
INPUT
POWER
AL–10 Low input volt-
age
Detects drop in input power
supply voltage.
Remove cause, then reset
alarm.
7n11 SPN_n_ : OVERVOLT
POW CIRCUIT
AL–11 Overvoltage in
DC link sec-
tion
Detects abnormally high di-
rect current power supply
voltage in power circuit sec-
tion.
Remove cause, then reset
alarm.
7n12 SPN_n_ : OVERCURRE
NT POW
CIRCUIT
AL–12 Overcurrent in
DC link sec-
tion
Detects flow of abnormally
large current in direct current
section of power cirtcuit
Remove cause, then reset
alarm.
7n13 SPN_n_ : DATA
MEMORY
FAULT CPU
AL–13 CPU internal
data memory
abnormality
Detects abnormality in CPU
internal data memory. This
check is made only when
power is turned on.
Remove cause, then reset
alarm.
7n15 SPN_n_ : SP SWITCH
CONTROL
ALARM
AL–15 Spindle
switch/output
switch alarm
Detects incorrect switch se-
quence in spindle switch/out-
put switch operation.
Check sequence.

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