
B-65280EN/05 FANUC AC SPINDLE MOTOR αi series 5.FUNCTION DESCRIPTIONS
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(2) Output signals (CNC → PMC)
15i 16i 30i #7 #6 #5 #4 #3 #2 #1 #0
1st- F229 F045 F045 SSTA
2nd- F245 F049 F049 SSTB
SSTA Speed zero detection signal (for the first spindle)
SSTB Speed zero detection signal (for the second spindle)
0 : The spindle motor is rotating.
1 : The spindle motor is in the speed zero (stopped) state.
After checking that these signals are set to 1 with both of the master
and slave, switch the tandem operation command SLVx.
When these signals are set to 0, the tandem operation command
cannot be accepted.
15i 16i 30i #7 #6 #5 #4 #3 #2 #1 #0
1st- F228 F046 F046 SLVSA
2nd- F244 F050 F050 SLVSB
SLVSA Tandem operation state signal (for the first spindle)
SLVSB Tandem operation state signal (for the second spindle)
0 : Tandem operation is disabled.
1 : Tandem operation is enabled.
After checking that these signals are set to 1 with both of the master
and slave, issue a command to the master SPM.
15i 16i 30i #7 #6 #5 #4 #3 #2 #1 #0
1st- F231 F047 F047 MSOVRA
2nd- F247 F051 F051 MSOVRB
MSOVRA Master-slave speed difference state signal(for the first spindle)
MSOVRB Master-slave speed difference state signal (for the second spindle)
0 : The speed difference between the master and slave is less than
the set value.
1 : The speed difference between the master and slave is equal to or
greater than the set value.
These signals indicate whether or not the speed difference between the
master motor and slave motor is less than the value set in the
parameter (FS16
i: No. 4347).
The signal for the slave SPM need not be monitored. (At all times, 0 is
output.)
NOTE
Monitor the states of these signals on the PMC.
Ensure that an alarm is issued if an error occurs
(for example, if the state of 1 lasts for a certain
period of time).