Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 307)

Acc/Dec Parameters
Chapter 10
10-11
Figure 10.5
Matching Linear Dec Ramp to the Natural Response of the Axis
Time (seconds)
Feedrate
Rapid
Linear Dec Ramp
(slope of this line)
Natural response
curve of axis
Function
Use this parameter while S--Curve Acc/Dec (G47.1) is active to select the
desired acceleration rate. A 0.0 value in this parameter disables Acc/Dec
for the applicable axis.
If a large value is entered here, the axis accelerates rapidly. A small value
results in a more gradual acceleration.
Important: If you attempt to run the axis with a high gain (refer to the
Initial Gain parameter in chapter 7), higher values are generally required
for this parameter to avoid getting the “EXCESS FOLLOWING ERROR”
message.
Important: This parameter is not for use with manual jogged motion.
Axis Parameter
Number
Axis Parameter
Number
(1) [1212] (7) [7212]
(2) [2212] (8) [8212]
(3) [3212] (9) [9212]
(4) [4212] (10) [10212]
(5) [5212] (11) [11212]
(6) [6212] (12) [12212]
10.6
S- Curve Acceleration Ramp