
B--63003EN--1/02
9. SPINDLE SPEED FUNCTION
831
When bit 7 (SRS) of parameter No. 5200 is set to 1, to select a spindle to
be used for rigid tapping, set the signals as indicated below.
Signal state
p
n
euse
or r
g
tapp
ng
RGTSP1 RGTSP2
First spindle “1” “1”
First spindle “1” “0”
Second spindle “0” “1”
P/S alarm No. 205 is issued. “0” “0”
WARNING
These signals must be applied before the command for rigid
tapping (M2 9 S....; G84 X...) is specified. The states of
these signals must not be changed before rigid tapping has
been completed.
[Classification] Input signal
[Operation] These signals are used to stop each spindle when the multi--spindle
control option is used. In a PMC sequence for rigid tapping, the ENB and
ENB2 signals are used. Accordingly, the logic of the signals used for a
spindle selected to perform rigid tapping must match the logic of the
spindle stop signal *SSTP.
*SSTP1 1 : The output to the first spindle does not specify 0 rpm.
0 : The output to the first spindle specifies 0 rpm.
*SSTP2 1 : The output to the second spindle does not specify 0 rpm.
0 : The output to the second spindle specifies 0 rpm.
[Classification] Input signal
[Operation] This signal is used to select the second position coder when the
multi--spindle control option is being used. Note, however, that it cannot
be used with a spindle selected to perform rigid tapping.
1 : Control is exercised using a feedback pulse signal from the second
position coder.
0 : Control is exercised using a feedback pulse signal from the first
position coder.
For rigid tapping, this signal is not used. Instead, a position loop is
constructed by combining the first spindle with the first position coder,
or by combining the second spindle with the second position coder.
Spindle--by--spindle stop
signals
*SSTP1, *SSTP2
<G027#3, #4>
Second position coder
selection signal
PC2SL C<G028#7>