
B--63003EN--1/02
9. SPINDLE SPEED FUNCTION
720
[Classification] Input signal
[Function] The command output to the spindle is held.
[Operation] When the spindle stop signal turns to “0” , the output voltage becomes 0V
and the enable signal ENB turns to “0” (M05 is not output). When this
signal turns to “1”, the analog voltage returns to its original value and the
ENB signal turns to “1”.
Input command
S
M03
M05 M04 S0
Miscellaneous function
processing
Spindle stop signal
*SSTP
“1”
“0”
Enable signal ENB
Analog voltage 0V
The above time chart is an example. Actually, the time chart should meet
the specification of the spindle control unit.
· When this signal is not used, always set the signal to “1”.
· M03, M04, M05 are not processed inside the CNC.
[Classification] Input signal
[Function] The spindle or the spindle motor is rotated at a constant speed.
[Operation] When the spindle orientation signal turns to “1” and the spindle stop
signal *SSTP turns to “0”, a spindle speed command which lets the
spindle rotate at the constant speed set by parameter No. 3732 is output.
The enable signal ENB also turns to “1”. This signal is disabled when the
spindle stop signal is “1”.
When the spindle speed for orientation is set by parameter GST No.
3705#1 and the SOR signal is input, the CNC outputs the spindle speed
command corresponding to the speed set to parameter 3732 with an
output polarity set by parameter ORM (No. 3706#5), but the gear select
signal does not change. For example, if the SOR signal is turned to “1”
with high gear selected, and the speed set to parameter No. 3732 is in the
Signal
Spindle stop signal
*SSTP<G029#6>
Spindle orientation
signal SOR <G029#5>