244
Pulse Outputs
Section 7-2
7-2-4
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-EL20DR-D
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Страница 34: ...xxxiv Software Licenses and Copyrights 7...
Страница 178: ...144 Connecting the CX Programmer Section 5 1 Click the Connect button to connect and then connection online is completed...
Страница 192: ...158 Trial Operation and Debugging Section 5 3...
Страница 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Страница 666: ...632 Trouble Shooting Section 11 7...
Страница 696: ...662 Standard Models Appendix A...
Страница 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Страница 836: ...802 PLC Setup Appendix G...
Страница 838: ...804 TCP Status Transitions Appendix H...
Страница 840: ...806 Ethernet Network Parameters Appendix I...
Страница 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Страница 844: ...810 Ethernet Specifications Appendix K...
Страница 851: ...Index 817 work words 118 write protection 447...
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