Aerotech UNIDEX 600 Series, User Manual

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Parameters U600 User’s Guide
C-88
Aerotech, Inc.
Version 1.4
C.4.83. MSO
This task parameter sets the Manual Spindle feedrate Override for Spindle #1 on this task.
The value is a ratio varying from 0 to infinity, where 1 represents normal or unaffected
motion. The MSO changes on the MMI600 screens are more restricted. This override
affects only spindle type motion. This does not affect any other type of motion. This value
can not be changed if the MSOLock task mode is active. Also, if the AnalogMSOInput
task parameter is not -1, the specified analog input determines the MSO value and this
parameter becomes read-only and will indicate its value. Additionally, this parameter
reflects only the requested spindle feedrate override, if the MaxFeedRateRPM machine
parameter have limited the actual feedrate. This will not be reflected in the MSO value.
This task parameter is sampled at the rate indicated by the AvgPollTimeSec global
parameter.
C.4.84. NormalcyToleranceDeg
This task parameter defines the absolute value of the minimum angular difference
between two moves, less than which, no G9 deceleration will be forced in-between the
two moves. In addition, if the angular difference is less that this amount, then the
normalcy move will be accomplished in the first UpdateTimeSec period of the second
move. Therefore, to avoid “jerking” of the normalcy axis, this value should be kept low.
However, if it is too low, the controller will enforce slowdowns to zero velocity, (in order
to accomplish a normalcy alignment move ) in-between moves, which are almost
identically at the same angle. Moves that are at nearly, but, not exactly tangential are
commonly output by CNC program post processors.
C.4.85. NormalcyAxis
This task parameter specifies which task axis is used for the normalcy axis. This axis
must be defined as a modulo position rotary type (Type = 1) axis. When enabled the
normalcy axis will maintain a normal (perpendicular) orientation to the contoured motion
path. The axes used to determine the normalcy plane are specified by the NormalcyX and
NormalcyY parameters. This parameter is 0 based, i.e.; the 1st axis (X) is represented as
0.
Figure C-18. Normalcy
Contoured Path
NormalcyX
NormalcyY
Normalcy Plane
NormalAxis
Orienation