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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. is 16i/16’)
408 OT300 SP098x 750 19 Excessive offset of phase
U current detection circuit
Change SPM.
408 OT300 SP098x 750 20 Excessive offset of phase
V current detection circuit
Change SPM.
409 OT321 SP0021 7n21 21 Incorrect polarity of
position sensor
Check and correct parameter.
(No.4001#4)
408 OT300 SP022x 749 24 Serial transfer data
error
1. Separate communicated cable
between CNC and spindle from
power line.
2. Change communicated cable.
409 OT327 SP0027 7n27 27 Position coder
disconnection
1. Change feedback cable.
2. Change position coder.
409 OT329 SP0029 7n29 29 Short-period overload Check and correct load condition.
409 OT330 SP0030 7n30 30 PSM main circuit
overcurrent
1. Change PSM.
2. Confirm specification of reactor.
409 OT331 SP0031 7n31 31 Motor lock alarm Check and correct load condition.
408 OT300 SP098x 7n32 32 Serial communication
LSI internal RAM
abnormal
Change SPM control printed circuit
board.
409 OT333 SP0033 7n33 33 DC link precharge failure Change PSM.
409 OT334 SP0034 7n34 34 Parameter data out of
specified range
Correct parameter setting
409 OT336 SP0036 7n36 36 Error counter overflow 1. Check and correct parameters of
gear ratio, position error and
position detector mounting direction.
2. Check and correct sequence.
409 OT399 SP0037 7n37 37 Incorrect setting for
parameters of
speed detector
Correct parameter setting of speed
detector.
409 OT399 SP0041 7n41 41 Position coder one-
rotation signal detection
error
1. Check and correct parameters.
2. Change feedback cables.
3. Change the position coder.
409 OT399 SP0042 7n42 42 Position coder one-
rotation signal not
detected
1. Change feedback cables.
2. Change the position coder.