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6. Troubleshooting
6 - 3
6-1-1 LED display when alarm or warning occurs
(1) Servo and spindle drive unit
The axis No. and alarm/warning No. alternate on the display. The display flickers when an alarm
occurs.
Numbers displayed on LED
No. 0 1 2 3 4 5 6 7 8 9 A B C D E F
LED
display
(2) Power supply unit
The alarm/warning No. is converted into a symbol and displayed. Refer to section "6-2-1 List of
alarms” and "6-2-2 List of warnings" for details. The display flickers when an alarm or a warning
occurs.
Alarm 71 (flicker)
LED display
during power supply alarm
Warning E9 (flicker)
LED display
during power supply warning
LED displa
y
durin
g
servo alarm or spindle alarm
F1 (flicker)
F+axis No.
25 (flicker)
Alarm No.
Not lit F2 (flicker)
F+axis No.
37 (flicker)
Alarm No.
F1
F+axis No.
E7
Warning No.
Not lit F2
F+axis No.
9F
Warning No.
LED display during servo warning or spindle warning