
B–65162E/03
11. OPTION RELATED TO SPINDLE
445
(2) When Spindle Orientation and Incremental Motion are both Executed
t
t t
ORCMA
(Spindle orientation command)
SHA00 to SHA11 (Command for specifying
the stop position in spindle orientation)
INDXA
(Command for changing the stop position
in spindle orientation)
INCMDA
(Command for selecting stop position data
or incremental command data)
ROTAA
(Command for specifying the direction of
rotation when changing the stop position)
NRROA
(Command for taking a shorter route when
changing the stop position)
Spindle position
Motor speed
ORARA
(Orientation completion signal)
t t t t
CCW
t
t t
t t
t t
t t
t t
t t
t t
Stopping the spindle in place using the usual orientation command
Z In the first orientation after the power is turned on, the spindle
rotates at the orientation speed. After a one rotation signal is
detected, the spindle stops in place. In the second and
subsequent orientations, the spindle stops in place within
rotation
Z The parameter specifying the direction of rotation (Series 16:
PRM4003, bits 2 and 3) applies to the spindle motor.
Z If the rising edge of ORCMA is detected when INCMDA is set
to 0, the data of SHA00 to SHA11 is read as stop position data.
The spindle stops after shifting by the distance obtained by the
following expression: [Value of SHA00 to SHA11] +
[Parameter of shift distance of the stop position in orientation
(Series 16: PRM4077)]
Stopping the spindle in place by an incremental command
Z For incremental motion, see item ” Incremental action” above.
Z When the command multiplication parameter (Series 16:
PRM4328) is set to 4096, the spindle rotation can be controlled.
Stopping the spindle in place by setting the stop position externally
Z If the falling edge of INDXA is detected when ORCMA is set
to 1 and INCMDA is set to 0, the data of SHA00 to SHA11 is
read as stop position command data. The spindle rotates and
stops at the specified position.