![background image](http://html1.mh-extra.com/html/omron/cj1m-cpu21/cj1m-cpu21_operation-manual_742493127.webp)
98
SPEED OUTPUT: SPED(885)
Section 5-5
■
Continuous Mode Speed Control
When continuous mode operation is started, pulse output will be continued
until it is stopped from the program.
Note
Pulse output will stop immediately if the CPU Unit is changed to PROGRAM
mode.
■
Independent Mode Positioning
When independent mode operation is started, pulse output will be continued
until the specified number of pulses has been output.
Note
1.
Pulse output will stop immediately if the CPU Unit is changed to PRO-
GRAM mode.
2.
The number of output pulses must be set each time output is restarted.
3.
The number of output pulses must be set in advance with PULS(881).
Pulses will not be output for SPED(885) if PULS(881) is not executed first.
4.
The direction set in the SPED(885) operand will be ignored if the number
of pulses is set with PULS(881) as an absolute value.
Operation Purpose Application
Frequency changes
Description
Procedure/
instruction
Starting
pulse output
To output
with spec-
ified
speed
Changing the
speed (fre-
quency) in
one step
Outputs pulses at a
specified frequency.
SPED(885) (Con-
tinuous)
Changing
settings
To
change
speed in
one step
Changing the
speed during
operation
Changes the fre-
quency (higher or
lower) of the pulse
output in one step.
SPED(885) (Con-
tinuous)
↓
SPED(885) (Con-
tinuous)
Stopping
pulse output
Stop
pulse out-
put
Immediate
stop
Stops the pulse out-
put immediately.
SPED(885) (Con-
tinuous)
↓
INI(880)
Stop
pulse out-
put
Immediate
stop
Stops the pulse out-
put immediately.
SPED(885) (Con-
tinuous)
↓
SPED(885) (Con-
tinuous, Target fre-
quency of 0 Hz)
Pulse frequency
Target frequency
Execution of SPED(885)
Time
Pulse frequency
Target frequency
Present frequency
Execution of
SPED(885)
Time
Pulse frequency
Present frequency
Execution of INI(880)
Time
Pulse frequency
Present frequency
Execution of SPED(885)
Time
Summary of Contents for CJ1M-CPU21
Page 1: ...Cat No W395 E1 03 CJ series Built in I O CJ1M CPU21 22 23 CJ1M CPU Units...
Page 2: ...CJ series Built in I O CJ1M CPU21 22 23 CPU Units Operation Manual Revised August 2004...
Page 3: ...iv...
Page 19: ...xx...
Page 79: ...50 Wiring Examples Section 3 3...
Page 217: ...188 Origin Search and Origin Return Functions Section 6 3...
Page 220: ...191 Built in Outputs Section 7 1...
Page 247: ...218 Built in Outputs Section 7 1...
Page 251: ...222 Combinations of Pulse Control Instructions Appendix A...
Page 255: ...226 Using Pulse Instructions in other CPU Units Appendix B...
Page 263: ...234 Index...
Page 265: ...236 Revision History...