
B–63833EN–1/02
9. SPINDLE SPEED FUNCTION
520
#7 #6 #5 #4 #3 #2 #1 #0
3707 P22 P21
PG2, PG1 (Bits 1 and 0 of parameter No.3702)
Gear ratio of spindle to first position coder
P22, P21 Gear ratio of spindle to second position coder
Magnification PG2, P22 PG1, P21
1 0 0
2 0 1
4 1 0
8 1 1
(Number of spindle revolutions)
(Number of position coder revolutions)
Magnification=
NOTE
Second position coder is enabled when the multi–spindle
control is selected.
#7 #6 #5 #4 #3 #2 #1 #0
3709 MSI
MSI In multi–spindle control, the SIND signal is valid
0 : Only when the first spindle is valid (SIND signal for the 2nd, 3rd
spindle becomes ineffective)
1 : For each spindle irrespective of whether the spindle is selected (Each
spindle has its own SIND signal).
3772 Maximum spindle speed
[Data type] Word
[Unit of data] min
–1
[Valid data range] 0 to 32767
This parameter sets the maximum spindle speed.
When a command specifying a speed exceeding the maximum speed of
the spindle is specified , or the speed of the spindle exceeds the maximum
speed because of the spindle speed override function, the spindle speed
is clamped at the maximum speed set in the parameter.
WARNING
1 When 0 is set in this parameter, the speed of the spindle is
not clamped.
2 When spindle speed command control is applied using the
PMC, this parameter has no effect, and the speed of the
spindle is not clamped.