
B-63783EN-1/01 9.SPINDLE FUNCTION
- 971 -
5722 Time (p) allowed from when the specified spindle speed is changed until
spindle speed fluctuation detection begins
[Input type] Parameter input
[Data type] Integerspindle
[Unit of data] msec
[Valid data range] 0 - 32767
This parameter specifies the time (p) allowed from when the
specified spindle speed is changed until spindle speed fluctuation
detection begins. In other words, spindle speed fluctuation
detection is not performed until the specified time elapses after the
specified spindle speed is changed.
#7 #6 #5 #4 #3 #2 #1 #0
5808 FL
[Input type] Parameter input
[Data type] Bitspindle
# 1 FLR Specifies the measurement unit for the permission ratio (q) and
fluctuation ratio (r) specified in spindle speed fluctuation detection
parameter Nos. 5701 and 5702, respectively, as follows:
0: 1% units
1: 0.1% units
Alarm and message
Number Message Contents
SP0242 OVERHEAT Spindle overheating reported because a spindle speed
fluctuation was detected.
- Relax the cutting conditions if the cutting load is heavy.
- Check whether the cutting tool is blunt.
- It is likely that the spindle amplifier is faulty.
Note
NOTE
1 If a spindle speed fluctuation is detected, the message "SP0242 OVERHEAT" is
displayed on the alarm screen.
2 If the "SP0242 OVERHEAT" alarm occurs, automatic operation is stopped within
a single block.
3 If parameter G26 (bit 4 of parameter No. 2409) is 1, the "SP0242 OVERHEAT"
alarm recurs even after it is reset, unless the cause is removed.
4 If all the spindle motor command voltage signals (RI0s to RI12s) are 0, spindle
speed fluctuation detection is not performed.
5 In G25 and G26, do not specify addresses in an unspecified format at the same
time.
6 If the spindle is switched in G26 mode (spindle speed fluctuation detection
enabled), the spindle speed fluctuation detection parameter for the selected
spindle becomes valid.
7 If the spindle is operating normally, spindle speed fluctuation detection is
performed.