
B-63783EN-1/01 9.SPINDLE FUNCTION
- 969 -
- System with more than one spindle
In a system with more than one spindle, spindle speed fluctuation
detection is performed for the spindle described below.
1) If the system has no spindle control switching function
Spindle speed fluctuation detection is performed for the first
spindle.
2) If the system has a spindle control switching function
Spindle speed fluctuation detection is performed for the spindle
selected in spindle control switching.
Spindle speed fluctuation detection is not performed for a spindle
that is not selected in spindle control switching.
Signal
Spindle speed command signal SPALA<F042#2> : For 1st spindle
SPALB<F338#2> : For 2nd spindle
SPALC<F339#2> : For 3rd spindle
SPALD<F340#2> : For 4th spindle
[Classification] Output signal
[Function] Indicates that the actual spindle speed has fluctuated by more than the
permissible amount corresponding to the specified spindle speed.
[Output condition] These signals become 1 when:
- The actual spindle speed fluctuates more than the permissible
amount corresponding to the specified spindle speed.
These signals become 0 when:
- No spindle speed fluctuation detection alarm has been issued, or
- The control unit is reset to cancel the alarm when the signals are 1.
Signal address
#7 #6 #5 #4 #3 #2 #1 #0
F042 SPALA
F338 SPALB
F339 SPALC
F340 SPALD