
8
8.3 Alarms Indicated on the Screen of the Power Mate CNC Manag-
er (FANUC Servo Motor Amplifier β Series (I/O Link Option))
544
D I/O link alarm
No.
LED
display
Description Countermeasure
–
A FANUC I/O Link error
occurred. A servo amplifier
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.
D No 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.