Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 303)

Acc/Dec Parameters
Chapter 10
10-7
Axis
Parameter
Number
Single Process
All [402]
Notes
This is a global parameter. The value set here applies to all axes.
Axis jogging moves use either linear or exponential Acc/Dec as defined in
AMP via Manual Acc/Dec (refer to page 10-19 for more information about
Manual Acc/Dec). Axis cutting moves use Linear or S--Curve Acc/Dec.
Function
If two adjacent motion blocks in a program require different axis feedrates,
Acc/Dec may be necessary to smooth the speed transition. The value
entered for this parameter specifies the maximum change in feedrate that
will be executed without any Acc/Dec activated.
For example, entering 50 mmpm here, means that any feedrate changes
equal to or less than 50 mmpm will be executed as a step, with no
Acc/Dec. Acc/dec ramping will be used for any feedrate transitions greater
than 50 mmpm.
ATTENTION: Entering too large a value here may result in
damage to the part, tooling, or machine. Large changes in
feedrate should always be made gradually when using Acc/Dec.
For most axis configurations, this value should be less than or equal to the
value entered for the Acc/Dec Ramp parameter.
Axis Parameter
Number
Axis Parameter
Number
(1) [1204] (7) [7204]
(2) [2204] (8) [8204]
(3) [3204] (9) [9204]
(4) [4204] (10) [10204]
(5) [5204] (11) [11204]
(6) [6204] (12) [12204]
10.3
Velocity Step for ACC/DEC