90
Axis Parameter Area
Section 4-4
S-curve
With S-curve acceleration/deceleration, the acceleration/deceleration rate
changes with time. If a smaller initial acceleration/deceleration rate is desired,
the amount of mechanical vibration can be reduced using the S-curve setting
and increasing the acceleration/deceleration rate. This is possible, however,
only as long as the maximum acceleration/deceleration rate is not exceeded.
The S-curve used for the PCU is the tertiary curve that joins the initial speed
and the target speed. If an S-curve is used, the maximum acceleration/decel-
eration will be 1.5 times that of the trapezoidal curve with the same accelera-
tion/deceleration time.
Speed (pps)
Maximum speed
Target speed
Initial speed
Acceleration
time setting
Deceleration
time setting
Time
Actual axis
acceleration time
Actual axis
deceleration time
Speed
S-curve acceleration
Time
Summary of Contents for CJ1W-C113 - REV 02-2008
Page 2: ...CJ1W NC113 213 413 133 233 433 Position Control Units Operation Manual Revised February 2008 ...
Page 3: ...iv ...
Page 13: ...xiv ...
Page 15: ...xvi ...
Page 19: ...xx ...
Page 27: ...xxviii Conformance to EC Directives 6 ...
Page 43: ...16 Control System Principles Section 1 7 ...
Page 47: ...20 Basic Procedures Section 2 ...
Page 139: ...112 Examples of Parameter Settings Section 4 9 ...
Page 173: ...146 Transferring Data with CX Position Section 5 7 ...
Page 223: ...196 Sample Program Section 7 7 ...
Page 259: ...232 Sample Program Section 8 10 ...
Page 293: ...266 Easy Backup Function Ver 2 0 or later Section 9 11 ...
Page 369: ...342 Reading Error Information with CX Position Section 11 8 ...
Page 385: ...358 Common Parameter Area Appendix C ...