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187
Pulse Outputs
Section 5-2
5-2-4
Pulse Output Patterns
The following tables show the kinds of pulse output operations that can be
performed by combining various pulse output instructions.
Continuous Mode (Speed Control)
Starting a Pulse Output
Changing Settings
Operation
Example
application
Frequency changes
Description
Procedure
Instruction
Settings
Output with
specified
speed
Changing the
speed (frequency)
in one step
Outputs pulses at a
specified frequency.
SPED(885)
(Continuous)
• Port
“CW/CCW”
or “Pulse +
direction”
• Continuous
• Target fre-
quency
Output with
specified
acceleration
and speed
Accelerating the
speed (frequency)
at a fixed rate
Outputs pulses and
changes the fre-
quency at a fixed
rate.
ACC(888)
(Continuous)
• Port
• “CW/CCW”
or “Pulse +
direction”
• Continuous
• Accelera-
tion/decel-
eration rate
• Target fre-
quency
Pulse frequency
Target frequency
Execution of SPED(885)
Time
Pulse frequency
Target frequency
Acceleration/
deceleration
rate
Execution of
ACC(888)
Time
Operation
Example applica-
tion
Frequency changes
Description
Procedure
Instruction
Settings
Change
speed in
one step
Changing the
speed during oper-
ation
Changes the fre-
quency (higher or
lower) of the pulse
output in one step.
SPED(885)
(Continu-
ous)
↓
SPED(885)
(Continu-
ous)
• Port
• Continuous
• Target fre-
quency
Change
speed
smoothly
Changing the
speed smoothly
during operation
Changes the fre-
quency from the
present frequency
at a fixed rate. The
frequency can be
accelerated or
decelerated.
ACC(888) or
SPED(885)
(Continu-
ous)
↓
ACC(888)
(Continu-
ous)
• Port
• Continuous
• Target fre-
quency
• Accelera-
tion/decel-
eration rate
Changing the
speed in a polyline
curve during opera-
tion
Changes the accel-
eration or decelera-
tion rate during
acceleration or
deceleration.
ACC(888)
(Continu-
ous)
↓
ACC(888)
(Continu-
ous)
• Port
• Continuous
• Target fre-
quency
• Accelera-
tion/decel-
eration rate
Change
direction
Not supported.
Change
pulse out-
put method
Not supported.
Pulse frequency
Target frequency
Present frequency
Execution of
SPED(885)
Time
Pulse frequency
Target frequency
Present frequency
Acceleration/
deceleration
rate
Execution of
ACC(888)
Time
Pulse frequency
Target frequency
Present frequency
Acceleration rate n
Acceleration
rate 2
Acceleration
rate 1
Execution of ACC(888)
Execution of ACC(888)
Execution of ACC(888)
Time
Содержание CP1L-L14D Series
Страница 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Страница 523: ...490 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...498 Replacing User serviceable Parts Section 10 2...
Страница 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...636 Index...
Страница 671: ...638 Revision History...