Manual
3-64 Detailed Descriptions of ACL Commands
Note that, although the controller electronics can slew at the above rates, the stepping motors
themselves may not be able to keep up.
Above certain values of <rate> the System automatically performs microstep skipping
during the moves. For more information see the AA, BC, and MA commands.
A single move or group of moves can be speeded up or slowed down through use of the VM
command.
ST <x>,<y> Set Toggle head offset
ACL programs which use an SP command to create an offset cause the machine to operate
in incorrectly calibrated platen space and also require homing between workpieces. The
STx,y; command may be used with the same offset as the SP command and the machine
will continue to operate in calibrated platen space. This command is useful with Toggle head
valves. The x,y offset values will be subtracted from any move prior to linearity and
calibration table corrections. An ST0,0; will cancel the offset.
Example: ST1000,1000;MA3000,3000; would cause the carriage to move to calibrated
units position 2000,2000.
SZ <z> Set Z Position Counter
The SZ command sets the Z axis position counter to an arbitrary new value, <z>, without
causing any motion. This can be used to increase the AZ command's travel range in either
direction beyond the normal 0 to 32766 limits, or to allow AZ to travel beyond the point
where the Z Home switch closed, or to provide a simple origin offsetting capability for the Z
axis.
<z> must be within the range 0 through <mod> - 1, where <mod> is the Z axis modulus as
set by the CZ command. If <z> is outside this range then an error is logged and the Z
position counter is not changed.
The SZ command causes the System to "forget" where the Z Home switch was found. Thus,
if you are counting on the Z axis modulus/travel limit to prevent the Z axis from crashing
into things, you should use SZ with caution.
See the AZ, CZ, FZ, MZ, and OZ commands.