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163
Built-in Outputs
Section 6-2
Output Pattern
The output pattern for S-curve acceleration/deceleration is shown below.
Example for PLS2(887)
The same type of S-curve acceleration/deceleration can be used for
ACC(888) as well.
Note
The curve for S-curve acceleration/deceleration is formed by applying a ter-
tiary function to the straight line of the set acceleration/deceleration rates (a
tertiary polynomial approximation). The maximum acceleration will be 1.5
times that of trapezoidal acceleration/deceleration for the same acceleration/
deceleration rate.
Procedure
Make the following settings in the PLC Setup.
Pulse Output 0 Speed Curve (CJ1M CPU Unit Ver. 2.0 Only)
Pulse Output 1 Speed Curve (CJ1M CPU Unit Ver. 2.0 Only)
Stop frequency
Time
Starting
frequency
Target
frequency
Pulse frequency
Set
acceleration
Specified
number of
pulses
PLS2
executed
Target frequency
reached
Deceleration point
Set
deceleration
Output stops
Acceleration
specified
for S-curve
acceleration
Deceleration
specified
for S-curve
deceleration
Max. acceleration
is 1.5 times
set acceleration
Programming
Console setting
address
Settings
Default
Function
Related
Auxiliary
Area flags/
bits
Time when
setting is read
by CPU Unit
Word
Bits
256
12 to 15 0 hex: Trapezium
(linear)
1 hex: S-shaped
0 hex
Specifies whether to use S-curve or
linear acceleration/deceleration rates
for pulse outputs with acceleration/
deceleration.
---
When power is
turned ON
Programming
Console setting
address
Settings
Default
Function
Related
Auxiliary
Area flags/
bits
Time when
setting is read
by CPU Unit
Word
Bits
274
12 to 15 0 hex: Trapezium
(linear)
1 hex: S-shaped
0 hex
Specifies whether to use S-curve or
linear acceleration/deceleration rates
for pulse outputs with acceleration/
deceleration.
---
When power is
turned ON
Summary of Contents for CJ1M-CPU21
Page 1: ...Cat No W395 E1 03 CJ series Built in I O CJ1M CPU21 22 23 CJ1M CPU Units...
Page 2: ...CJ series Built in I O CJ1M CPU21 22 23 CPU Units Operation Manual Revised August 2004...
Page 3: ...iv...
Page 19: ...xx...
Page 79: ...50 Wiring Examples Section 3 3...
Page 217: ...188 Origin Search and Origin Return Functions Section 6 3...
Page 220: ...191 Built in Outputs Section 7 1...
Page 247: ...218 Built in Outputs Section 7 1...
Page 251: ...222 Combinations of Pulse Control Instructions Appendix A...
Page 255: ...226 Using Pulse Instructions in other CPU Units Appendix B...
Page 263: ...234 Index...
Page 265: ...236 Revision History...