318
Inverter Positioning
Section 7-3
Inverter Positioning with the CP1L-EL/EM
With the CP1L-EL/EM’s inverter positioning function, feedback is constantly
read for the positioning data while controlling the position.
Note
(1) The CP1L-EL/EM’s inverter positioning function is designed to increase
positioning speed and stopping precision by reading position information
and using a feedback loop with an error counter to switch speeds. It does
not increase the response, stopping precision, or speed change rate of
the inverter and motor. These are characteristics of the inverter and mo-
tor. Refer to user documentation on your inverter and motor for details.
(2) The corresponding pulse output number (0 or 1) cannot be used for the
PULSE WITH VARIABLE DUTY FACTOR instruction (PWM) if inverter
positioning 0 or 1 is used. The high-speed counter of the same number
(0 or 1) is used to input the feedback pulse.
CP1L-EL/EM
Position feedback
Speed command
Inverter
Power
supply
frequency
Inductive motor
Encoder
Feedback pulses
There is no positioning error because the present position and position error
are constantly monitored and corrected.
Frequency
Low-speed operation is not required to prevent
positioning error. Control is simplified because the
low-speed position does not need to be calculated.
Time
Time
Position
Actual/Settings
Command output
Settings/Actual
Positioning is faster because low-speed
operation is not used.
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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