Fanuc Power Mate i-D/H Maintenance Manual

APPENDIXA. ALARM LIST
B63175EN/03
496
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
AL01 Motor
overheat
Detects motor speed
exceeding specified speed
excessively.
Check load status.
Cool motor then reset
alarm.
7n02 SPN_n_ : EX SPEED ER-
ROR
AL02 Excessive
speed
deviation
Detects motor speed
exceeding specified speed
excessively.
Check load status.
Reset alarm.
7n03 SPN_n_ : FUSE ON DC
LINK BLOWN
AL03 DC link section
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
AL04 Input fuse
blown.
Input power
open phase.
Detects blown fuse (F1 to F3),
open phase or momentary
failure of power (models 30S
and 40S).
Replace fuse.
Check open phase and
power supply regenerative
circuit operation.
7n05 SPN_n_ : POWER SUP-
PLY FUSE
BLOWN
AL05 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 AL07 Excessive
speed
Detects that motor rotation has
exceeded 115% of its rated
speed.
Reset alarm.
7n08 SPN_n_ : HIGH VOLT IN-
PUT POWER
AL08 High input
voltage
Detects that switch is flipped to
200 VAC when input voltage is
230 VAC or higher (models
30S and 40S).
Flip switch to 230 VAC.
7n09 SPN_n_ : OVERHEAT
MAIN CIRCUIT
AL09 Excessive load
on main circuit
section
Detects abnormal temperature
rise of power transistor
radiator.
Cool radiator then reset
alarm.
7n10 SPN_n_ : LOW VOLT IN-
PUT POWER
AL10 Low input
voltage
Detects drop in input power
supply voltage.
Remove cause, then reset
alarm.
7n11 SPN_n_ : OVERVOLT
POW CIRCUIT
AL11 Overvoltage in
DC link section
Detects abnormally high direct
current power supply voltage
in power circuit section.
Remove cause, then reset
alarm.
7n12 SPN_n_ : OVERCUR-
RENT POW
CIRCUIT
AL12 Overcurrent in
DC link section
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
AL13 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
AL15 Spindle
switch/output
switch alarm
Detects incorrect switch
sequence in spindle switch/
output switch operation.
Check sequence.
Alarms (Serial spindle)

Leave a Reply

Your email address will not be published.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