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Pulse Outputs
Section 5-2
Procedure
Make the following settings in the PLC Setup.
Pulse Output 0 to 3
Restrictions
The following restrictions apply when using S-curve acceleration/deceleration.
Starting Frequency
The starting frequency must be 100 Hz or greater. If the starting frequency is
set to less than 100 Hz, it will automatically be increased to 100 Hz if S-curve
acceleration/deceleration is set.
Target Frequency
S-curve acceleration/deceleration will not be performed if the target frequency
is less than 100 Hz.
Precautions when
using the Pulse
Output Function
The CP1L CPU Unit’s pulse output frequency is determined by dividing the
source clock frequency by an integer ratio. (The source clock frequency for
ports 0 and 1 is 20 MHz and the frequency for ports 2 and 3 is 16.4 MHz.)
Consequently, there may be a slight difference between the set frequency and
the actual frequency, and that difference increases as the frequency
increases. The actual frequency can be calculated from the following equa-
tions.
Pulse Output System
Speed Curve
Trapezium
When a pulse output is executed with accelera-
tion/deceleration, this setting determines
whether the acceleration/deceleration rate is lin-
ear (trapezium) or S-shaped.
S-shaped
50 Hz
100 Hz
Automatically
increased
to 100 Hz.
Pulse frequency
Time
50 Hz
No
acceleration/deceleration
Time
Pulse frequency
Frequency
divider
Output pulses (actual frequency)
Integer dividing ratio calculated
from user's set frequency
Source
clock
16.4 MHz
Содержание CP1L CPU UNIT - 03-2009
Страница 1: ...Cat No W462 E1 06 CP1L CPU Unit SYSMAC CP Series CP1L L_0D_ CP1L M_0D_ OPERATION MANUAL...
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Страница 22: ...xxii...
Страница 34: ...xxxiv Conformance to EC Directives 6...
Страница 70: ...36 Function Blocks Section 1 5...
Страница 584: ...550 Trouble Shooting Section 8 7...
Страница 627: ...593 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Страница 630: ...596 Sample Application Section 9 12...
Страница 654: ...620 Troubleshooting Unit Errors Section 11 4...
Страница 662: ...628 Replacing User serviceable Parts Section 12 2...
Страница 668: ...634 Standard Models Appendix A...
Страница 698: ...664 Auxiliary Area Allocations by Function Appendix C...
Страница 746: ...712 Auxiliary Area Allocations by Address Appendix D...
Страница 773: ...739 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 774: ...740 Connections to Serial Communications Option Boards Appendix F...
Страница 806: ...772 Index...
Страница 808: ...774 Revision History...