3.8 Adjustment of oriented spindle stop function
3.8.1
Oriented spindle stop motions
There are three types of oriented spindle stop and one of
them can be selected by setting parameter
PRE
(a) Spindle approaches the stop position
in the direction of ratation which is
same as that of on-going rotation.
2.
Forward spindle stop orientation
. . . . .
Spindle always approaches the stop po-
sition in the direction of forward ro-
tation.
3. Reverse spindle stop orientation
Spindle
approaches the stop po-
sition in the direction of reverse
rotation.
When oriented spindle stop command signal ORC turns on,
motor speed changes from steady run
to positioning
control speed and at the same time
"stop position command"
(multi-point spindle orientation) is read.
When motor speed reaches the positioning control speed,
control mode changes from "speed control" mode to "posi-
tion control" mode (position control loop
(Note
(Speed at which control mode changes to position control
mode is automatically set in accordance with position
control loop gain setting.)
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