
B–63785EN/01
6. AC SPINDLES
347
Conversion from the specified spindle speed (or S code), which is a
command for specifying the rotation speed of the spindle, to the spindle
motor command voltage signal, which is an actual command for
specifying the rotation speed of the motor, is performed totally in the
PMC. The CNC controls the specified voltage using the spindle motor
command voltage signal regardless of the specified spindle speed (or S
code).
The PMC performs conversion by taking the following into account:
(1) Spindle maximum/minimum rotation speed clamp
(2) Gear selection
(3) Spindle override
(4) Special control modes such as constant surface speed control
(5) Spindle normal/reverse rotation and stop commands
(6) Spindle orientation and other special commands
#7
00015
#6 #5 #4 #3 #2 #1
SPS
#0
[Data type] Bit
Parameter entry
SPS: Specifies whether to display the spindle screens.
0: To display
1: Not to display
#7
SVP05820
#6 #5 #4 #3 #2 #1 #0
[Data type] Bit
Parameter entry
SVP: Specifies which of the following is to be used in synchronous error
display for rigid tapping, spindle synchronous control, and other types of
control.
0: A monitored value is displayed.
1: A held peak value is displayed.
6.1.2
Spindle Screens
6.1.2.1
Parameters