Aerotech UNIDEX 600 Series, User Manual

Page: 286 / 354

U600 User’s Guide Parameters
Version 1.4
Aerotech, Inc.
C-61
C.4.3. AccelRateDPS2
This task parameter specifies the acceleration rate in degrees per second squared used by
the CNC for contoured motion acceleration (G1, G2, G3, G12, and G13), when the G68
mode is active. Otherwise, the acceleration will be time based and AccelTimeSec
parameter will be used.
The linear AccelRateIPS2/DecelRateIPS2 are used for linear dominant moves while the
rotary AccelRateDPS2 /DecelRateDPS2 rates are used for rotary dominant moves. Refer
to the G98/G99 commands for information on rotary/linear axes dominance.
When accelerating/decelerating in rate based mode, the controller will not perform
the acceleration/deceleration in a time period that is shorter than the UpdateTimeSec
task parameter value. Therefore, for high rates of acceleration/deceleration and/or
acceleration/decelerations between very similar speeds, the rate can be less than that
specified.
C.4.4. AccelRateIPS2
This task parameter specifies the acceleration rate in inches per second squared used by
the CNC for contoured motion acceleration (G1, G2, G3, G12, G13), in linear dominant
moves, when the G68 command is active. Otherwise, G67 will be active causing the
acceleration to be time based and the AccelTimeSec task parameter will be used. The
linear AccelRateIPS2 /DecelRateIPS2 are used for linear dominant moves while the
rotary AccelRateDPS2 /DecelRateDPS2 rates are used for rotary dominant moves. Refer
to the G98/G99 command for information on rotary/linear axes dominance.
The units will always be in Inches per second squared, regardless of the current
G70/G71 (metric/english) mode.
When accelerating/decelerating in rate based mode, the controller will not perform
the acceleration/deceleration in a time period that is shorter than the UpdateTimeSec
task parameter value. Therefore, for high rates of acceleration/deceleration and/or
acceleration/decelerations between very similar speeds, the rate can be less than that
specified.
C.4.5. AccelTimeSec
This task parameter specifies the acceleration time in seconds used by the controller for
contoured motion acceleration (G1, G2, G3, G12, and G13). The G67 mode must be set.
Otherwise, G68 will be active and the acceleration will be rate based and one of the
acceleration rate task parameters will be used.