Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 309)

Acc/Dec Parameters
Chapter 10
10-13
Function
This parameter allows you to select the deceleration rate for each axis
during S--curve Acc/Dec Mode (G47.1). A 0.0 value in this parameter
forces the system to replace this value with the value set for S--Curve
Acceleration Ramp.
If a large value is entered here, the axis decelerates rapidly. A small value
results in a more gradual deceleration.
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) [1213] (7) [7213]
(2) [2213] (8) [8213]
(3) [3213] (9) [9213]
(4) [4213] (10) [10213]
(5) [5213] (11) [11213]
(6) [6213] (12) [12213]
Range
0.00000 to 20,000.00000 mm/sec/sec
or
0.00000 to 787.4015 inch/sec/sec
or
0.00000 to 20,000.00000 deg/sec/sec
Notes
This parameter must be set independently for each axis.
Important: If the Servo Position Loop Type parameter (chapter 7) is set
for “ZFE Closed Loop” and the Feed Forward Percentage is set relatively
high, then it is important that the axis acceleration and deceleration
ramping closely match the “natural response” of the axis.
10.7
S- Curve Deceleration Ramp