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The slow_accel parameter is used to control motor acceleration slope when the
unload table stepper motor when it is running at SLOW speed. The motor ramps up
from slow_start_vel to slow_end_vel at a rate specified by slow_accel and ramps
back down using the same acceleration slope as it reaches its target position.
If the value in slow_start_vel is larger than the value in slow_end_vel, then
the stepper motor will start and stop at the speed specified by the slow_end_vel
and will not ramp up or down.
Decreasing this value will reduce the motor acceleration.
For small acceleration values, the motor can take a very large number of steps
to go from the start velocity to the end velocity. If the distance that the
motor needs to move is too short for it to reach the end velocity, then it
will perform a partial acceleration to the highest velocity attainable under the
current acceleration value before starting to ramp back down to stop at the
target position.
SLOW speed is used for matching the speed of the plate to the speed of the
processor during the final phase of the PROCESS command when transferring the
plate from the unload table to the plate processor.
Syntax: set aldrv 2 ss
Other products have more than one stepper motors axis, so used "set aldrv 1" and
"set aldrv 2" for the separate axes. The 3244 Trendsetter Autoloader has only one
axis, but kept the same parameter structure for consistency.
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