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15. PMC CONTROL FUNCTION
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NOTE
1 If the spindle fails to move after the PMC issues the spindle
motor speed command, check the following:
Type A is selected (the MSI bit, bit 2 of parameter No. 3709,
is set to 0) when the multispindle control function is used.
The second or third spindle cannot be controlled. The
first spindle can be controlled only when the spindle
selection signal SWS1 is set to “1”.
The spindle stop signal for each a xis is set to “0” when the
multispindle control function is being used.
Spindle stop signal for each axis *SSTPx <G027, #3, #4,
#5> stops the spindle.
M03/M04 is not specified when the CNC is being used to
control the output polarity.
If the TCW bit, bit 7 of parameter No. 3706, is set to 1, the
M03/M04 command issued to the CNC changes the
output polarity for the spindle motor. If no M03/M04
command is specified after the CNC is turned on, the
specified speed output is not sent to the spindle motor
because the output polarity has not been determined.
2 The SF signal indicates that output of the S code to the PMC
has been completed. The signal does not indicate the end
of the command for specifying the spindle speed.
3 For an explanation of connecting the second or third
spindle, see Sections 9.2 SPINDL E SERIAL OUTPUT/
SPINDLE ANALOG OUTPUT and 9.10 MULTI--SPINDLE
CONTROL.
4 If the multispindle control function is not being used, the
CNC does not issue any commands to the second and third
spindles. The output polarity is controlled by the SGNx
signal. It is not affected by the SSINx signal.
The speed output to the spindle motor can be controlled
only when the SINDx signal is set to “1”.
Note