Application Note
I52 '\' Feed Hold Slew Rate
Range
0 .. 8,388,607
Default
0
Units
I10 units / segmentation period
Remarks
This parameter controls the slew rate to a stop on a \ feed hold command, and the slew
rate back up to speed on a subsequent R command, for all coordinate systems, provided
PMAC is in segmentation mode (I13>0). If PMAC is not in segmentation mode
(I13=0), the \ command acts just like an H feed hold command, with Ix95 controlling
the slew rate.
The units of I52 are the units of I10 (1/8,388,608 msec) per segmentation period (I13
msec). To calculate how long it takes to stop on a \ command, and to restart on the next
R command, use the formula T (msec) = I10 * I13 / I52. To calculate the value of I52 for
a given start/stop time, use the formula I52 = I10 * I13 / T (msec).
Example
To execute a full stop in one second with the default servo update time (I10 = 3,713,707)
and a move segmentation time of 10 msec, I52 should set to 3,713,707 * 10 / 1000 =
37,137.
See Also
Stop Commands (Making Your Application Safe)
I-variables I13, Ix95
On-line commands \, H
Feed Hold Slew Rate
1