
9.SPINDLE FUNCTION B-63323EN-1/03
- 876 -
Example) For position coder built-in type spindle motor
Parameter
No.
Set value
Meaning
5852 70 Number of teeth of the 1st gear for the spindle side
5855 50 Number of teeth of the 2nd gear for the spindle side
5858 30 Number of teeth of the 3rd gear for the spindle side
5851 30 Number of teeth of the 1st gear for the position coder
side
5854 50 Number of teeth of the 2nd gear for the position
coder side
5857 70 Number of teeth of the 3rd gear for the position coder
side
- Rigid tapping and machines with multiple gears
Note the following points when performing rigid tapping for a machine
having multiple gears.
Using the PMC, determine whether gears need changing, and make the
change if CNC of them.
To perform rigid tapping with the serial spindle, enter the clutch/gear
selection signals. Notify the serial spindle control unit of these signals
via the CNC.
Regardless of the option’s selection, if the range in which the spindle
speed specified by the S function code does not correspond to the
currently selected gear, the gears are changed.
The following tables list the spindle speed ranges for each gear during
normal machining (assuming no machine restrictions) and rigid
tapping:
Spindle
motor
Built-in position coder
1st gear set 30 : 70
2nd gear set 50 : 50
3rd gear set 70 : 30
1st gear set
2nd gear set
3rd gear set
Spindle