
B–63503EN–1/01
9. SPINDLE SPEED FUNCTION
372
low gear range, the gear select signal does not change and the command
output is calculated and output to obtain the set speed at high gear.
When the spindle motor speed is set by parameter GST (No. 3705#1)=1,
the command output is output regardless of gear select signal. When the
spindle motor speed is set, it is used for gear shift.
Example of usage is shown below:
Max. 70ms
M19
Input command
Miscellaneous function
processing
Spindle stop signal
*SSTP
Enable signal
ENB
Command output to
the spindle
Stop command
Orientation
detection
M03
Spindle orientation signal
SOR
Max. 70ms
RL: Constant speed set by parameter No. 3732
Spindle speed
0 rpm
0
[Classification] Input signal
[Function] The spindle speed override signal specifies an override from 0% to 254%
in 1% units for the S command sent to the CNC.
[Operation] An override value in binary must be set in 8 bits from SOV7 to SOV0.
The spindle speed override function is disabled (an override of 100% is
applied) under the following conditions:
⋅ Tapping cycle (M series : G84, G74 T series : G84, G88)
⋅ Thread cutting (M series : G33 T series : G32, G92, G76)
→ When this function is not in use, specify an override of 100%;
otherwise, an override of 0% becomes effective, thus disabling the
spindle from rotating.
Spindle speed override
signal SOV0 to SOV7
<G030>