S
ystem alarms
No. LED display Description Countermeasure
-
An error was detected in the RAM write/read
test at power-up.
Replace the servo amplifier unit.
-
An error was detected in the data collation
check for the non-volatile memory.
Turn the power off then back on. Then,
re-enter the parameters. If this alarm recurs,
replace the servo amplifier unit.
-
A data transfer alarm for the non-volatile
memory has been issued.
Replace the servo amplifier unit.
-
A watchdog alarm was issued. Turn the power off then back on. If this alarm
recurs, replace the servo amplifier unit.
-
A checksum alarm for the control software
ROM is issued.
Replace the servo amplifier unit.
-
A checksum alarm for the ROM that is built
into the CPU is issued.
Replace the servo amplifier unit.
-
An error was detected in the control circuit. Replace the servo amplifier unit.
I
/O link alarm
No. LED display Description Countermeasure
-
A FANUC I/O Link error occurred. Any unit
connected to the line was turned off.
Turn off the power to all units connected to the
line. Then, turn on the slave devices, followed
by the master device.
N
o LED display
No. LED display Description Countermeasure
-
No indicators
lit
The control circuit is not operating normally. (1) Check the 24-VDC control supply voltage.
If the voltage is low, increase the voltage to
an appropriate level.
(2) Check whether a fuse in the servo amplifier
unit has blown. If a blown fuse is found,
replace it.
If (1) and (2) are not the cause, replace the
servo amplifier.
EDIT
DATE DISIGNE
DESCRIPTION
TITLE
DRAW
ALARM FOR FANUC SERVO MOTOR β series I/O Link
Option (FANUC Series 21i/210i/210is–TA OPERATOR’S
MANUAL) , (FANUC Series 21i/210i–TB OPERATOR’S
MANUAL)
B-63084EN/02-6, B-63604EN/01-2
SHEET
8/8
APPROV.
FANUC LTD