
11. OPTION RELATED TO SPINDLE
B–65162E/03
444
(1) Incremental Action
ORCMA
(Spindle orientation command)
SHA00 to SHA11 (Command for
specifying the stop position in spindle
orientation)
INDXA
(Command for changing the stop posi-
tion 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)
Spindle position
Motor speed
ORARA
(Orientation completion signal)
t t t t t t
t t
CCW
CCW
t
t
t t t t
t t
t t
t t
CW
Notes
Set t to 50 ms or more. The signals require this time period to stabilize.
(Note)To confirm the signal, t should be 50 msec or more.
If the rising edge of ORCM is detected when the spindle stops (zero
speed detection signal SSTA is set to 1) and INCMDA is set to 1, the data
of SHA00 to SHA11 is read as incremental command data. The spindle
starts rotating as specified by the incremental command and stops.
ROTAA determines the direction of rotation.
Another incremental action can then be executed. If the falling
edge of INDXA is detected when both ORCM and INCMDA are
set to 1, the data of SHA00 to SHA11 is read as incremental
command data. The spindle starts rotating as specified by the
incremental command and stops. ROTAA determines the direction
of rotation.
The incremental command data is specified in units of pulses. The
data range is 0 to +4095 pulses. ROTAA determines the direction
of rotation. When a command multiplication parameter (Series 16:
PRM4328) is specified, the spindle stops rotating after reaching the
value obtained by the following expression: [Command
multiplication parameter] [Incremental command data]. During
incremental motion, the parameter indicating the direction of
rotation, NRROA (Series 16: PRM4003, bits 2 and 3), is invalid.
When the position error comes within the range specified by the
parameter (Series 16: PRM4075), ORARA is output.
11.1.3.4
Control Sequence