![background image](http://html1.mh-extra.com/html/omron/cp1l-12-2007/cp1l-12-2007_operation-manual_742083229.webp)
196
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 - 12-2007
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 428: ...395 Clock Section 6 9...
Страница 429: ...396 Clock Section 6 9...
Страница 523: ...488 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...496 Replacing User serviceable Parts Section 10 2...
Страница 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...634 Index...
Страница 671: ...636 Revision History...