Aerotech UNIDEX 600 Series, User Manual

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U600 User’s Guide Parameters
Version 1.4
Aerotech, Inc.
C-85
C.4.76. MaxModeStack
This task parameter specifies the maximum number of mode stack elements available for
this task. Task modes can be pushed and popped off this stack for storing and restoring
modes.
C.4.77. MaxMonitorData
This task parameter specifies the maximum number of ON statements available for
programs on this task.
C.4.78. MaxOnGosubData
This task parameter specifies the maximum number of OnGosub statements available for
programs on this task.
C.4.79. MaxRadiusAdjust
This task parameter specifies the maximum number of degrees deviation of an arc (G2 /
G3 ) from 360 degrees, for which the center point will not be adjusted. Normally, when
an arc is specified with imprecision in the center point and target values (usually due to
truncation of the target values by a “post-processor program), a new center point for the
arc will be calculated (See MaxRadiusError ).
However, if this imprecision is present in an arc whose angular travel is near 360 degrees
(i.e. the starting and ending points are nearly identical). A small imprecision can be
“leveraged” into a large difference in the circle center. In these cases we want to suppress
the circle center readjustment algorithm. The user should never have to change this
parameter’s value, as the only time it is relevant, is when the post-processor program
erroneously produces a 360 degree circle, but with unequal starting and ending point
values.
C.4.80. MaxRadiusError
This task parameter specifies the maximum error that may exist between the specified
radius at the starting point and ending points of a G2 / G3 / G12 / G13 command before a
fault will occur. The units are in percent (%), with the default being 5%. Circular Radius
Errors provides more information on this subject. All errors, less than the value of this
parameter will have a new center point calculated, reducing their error to zero. Errors
greater than this parameter will generate a fault.
You may also set this parameter to –1, which deactivates the Circular Radius Error Test,
which requires the computation of a square root, and in the cases of high speed
machining, this will speed up profile generation and avoid CNC Profile Queue Starvation
Errors.
The Circular Radius Error test is only performed when specifying arcs (G2 / G3) with the
IJK method.
It is recommended that the Circular Radius Error test be left active until the program is
completely debugged. Turning it off allows the user to write invalid (non-circular) G2 /
G3 commands without any warning being issued to the user.