Fanuc Series 15i/150i-MA (Programming) Operators Manual

19.AXIS CONTROL FUNCTIONS PROGRAMMING B-63324EN/03
- 736 -
Both Kn and Kd are within the allowable range. No alarm is
output.
In this sample program, when T1 is specified for the master axis,
the synchronization ratio (fraction) of the CMR of the C-axis to
the denominator Kd can always be reduced to lowest terms, thus
Kd falls in the allowable range. So, the specifiable range of C is as
follows:
-99999999 C 99999999
(d) Command : G81.5 T10 C3.263 ;
Operation : Synchronization between the spindle and C-axis is
started at the ratio of a 3.263-degree rotation about
the C-axis to ten spindle rotations.
Pm : (Number of pulses per spindle rotation) × 10
rotations 72000 × 10
Ps : (Amount of the C-axis movement)×CMR 3263×5
×
×
In this case, an alarm is issued because Kd exceeds the specifiable
range.
(e) Command : G81.5 P10000 C-0.214 ;
Operation : Synchronization between the spindle and C-axis is
started at the ratio of a -0.214- degree rotation of the
C-axis to 10,000 feedback pulses from the pulse
coder of
the spindle.
Pm : (Specified number of feedback pulses from the pulse
coder of the spindle) 10000
Ps : (Amount of C-axis movement) × CMR -214 × 5
×
Both Kn and Kd are within the allowable range. No alarm is
output.
 When the master axis is the spindle, the slave axis is the V-axis
(linear axis), and inch/metric conversion is performed
(a) For a millimeter machine and metric input
Command : G81.5 T1 V1.0 ;
Operation : Synchronization between the spindle and V-axis is
started at the ratio of a 1.00 mm movement along the
V-axis per spindle rotation.
Pm : (Number of pulses per spindle rotation) × 1 rotation
72000 × 1
Ps : (Amount of V-axis movement) × CMR 1000 × 5

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