
2.EXPLANATION OF OPERATION MODES FANUC BUILT-IN SPINDLE MOTOR Bis series B-65280EN/05
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15i 16i
3406 4406
Acceleration/deceleration time constant at return to the reference position in
Cs contouring control
Unit of data : 1msec
Valid data range : 0 to 32767
Standard setting : 0
This parameter sets the acceleration to be used for returning to the
reference position in Cs contouring control. Use of this parameter can
reduce the shock due to acceleration/deceleration during return to the
reference position. The spindle speed command during return to the
reference position is then given as follows:
Reference
position return
speed
(min
-1
)
Setting in
parameter No.
4406
(msec)
Setting in
parameter No.
4406
(msec)
Start of reference position return
One-rotation signal detected
End of reference position return
NOTE
1 When 0 is set in this parameter, a velocity command
is assumed as follows.
• Before detecting the one-rotation signal:
Reference position return speed (step-type
velocity command)
• After detecting the one-rotation signal:
Distance to the reference position × Position gain
2 This parameter is enabled when soft start/stop signal
SOCNA is 1.
2.4.8 Diagnosis (Diagnosis Screen)
For this subsection, see Subsection 2.4.8, "Diagnosis (Diagnosis
Screen)", in Part I.
2.4.9 Alarm
For this subsection, see Subsection 2.4.9, "Alarm", in Part I.