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Descri
tion
Design.
DateEd
01.03.23
SHEET
DRAW. No.
CUST.
TITLE
okota
okota
Newly designed
i series Spindle
Start-up Procedure
-53866E-387/02
FANUC LTD
1
CNC monitor display
0 15 15i 16i/16
SPM
Display
(alarm
code)
Alarm description
Troubleshooting
(Described parameter No.16i/16)
409 OT399 SP0073 7n73 73 Motor sensor signal
disconnected
1. Change feedback cables.
2. Confirm the shielding.
3. Check and correct connection.
4. Adjust sensor.
409 OT399 SP0074 7n74 74 CPU test alarm Change SPM control printed circuit
board.
409 OT399 SP0075 7n75 75 CRC test alarm Change SPM control printed circuit
board.
409 OT399 SP0079 7n79 79 Initial test operation
abnormal
Change SPM control printed circuit
board.
409 OT399 SP0081 7n81 81 Motor sensor one-rotation
signal detection error
1. Check and correct parameters.
2. Change feedback cables.
3. Adjust sensor.
409 OT399 SP0082 7n82 82 Motor sensor one-rotation
signal not detected
1. Change feedback cables.
2. Adjust sensor.
409 OT399 SP0083 7n83 83 Motor sensor signal
abnormal
1. Change feedback cables.
2. Adjust sensor.
409 OT399 SP008 7n84 84 Spindle sensor signal
Disconnection
1. Change feedback cables.
2. Confirm the shielding.
3. Check and correct connection.
4. Check and correct parameters.
5. Adjust sensor.
409 OT399 SP0085 7n85 85 Spindle sensor One-
rotation signal detection
error
1. Check and correct parameters.
2. Change feedback cables.
3. Adjust sensor
409 OT399 SP0086 7n86 86 Spindle sensor one-
rotation signal not
detected
1. Change feedback cables.
2. Adjust sensor.
409 OT399 SP0087 7n87 87 Spindle sensor signal
abnormal
1. Change feedback cables.
2. Adjust sensor.
409 OT399 SP0088 7n88 88 External control circuit
cooling fan stop.
Change SPM external control circuit
cooling fan.
409 OT399 SP0097 7n97 97 Other spindle amplifier
alarm
409 OT399 SP0098 7n98 98 Other converter alarm Check alarm display of PSM
(*) n in 16i/16’s alarm number shows an axis number.