Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 939

High-speed Counter/Pulse Output Instructions
Operation Purpose
Starting To output Accelerating the
pulse output with speci- speed (frequency)
fied accel- at a fixed rate
eration and
speed
Changing To change Changing the
settings speed speed smoothly
smoothly during operation
Changing the
speed in a
polyline curve
during operation
Decelerating to a
stop
■
Continuous Mode Speed Control
Pulse output will continue until it is stopped from the program.
Note Pulse output will stop immediately if the CPU Unit is changed to PROGRAM
mode.
Application
Pulse frequency
Target frequency
Present frequency
Pulse frequency
Target frequency
Present frequency
Pulse frequency
Target frequency
Present frequency
Pulse frequency
Present
frequency
Target
frequency = 0
Execution of ACC(888)
Frequency changes
Acceleration/
deceleration
rate
Execution of
ACC(888)
Acceleration/
deceleration
rate
Execution of
ACC(888)
Acceleration rate n
Acceleration
rate 2
Acceleration
rate 1
Execution of ACC(888)
Execution of ACC(888)
Execution of ACC(888)
Acceleration/deceleration rate 1
Acceleration/
deceleration rate 2
Execution of ACC(888)
Execution of ACC(888)
(target frequency = 0)
Section 3-21
Description
Outputs pulses and
changes the fre-
quency at a fixed
rate.
Time
Changes the fre-
quency from the
present frequency
at a fixed rate. The
frequency can be
accelerated or
decelerated.
Time
Changes the accel-
eration or decelera-
tion rate during
acceleration or
deceleration.
Time
The deceleration
rate is changed
while decelerating.
Note If the target
frequency is
set to 0 Hz,
the current
Time
deceleration
rate will be
used.
Procedure/
instruction
ACC(888)
(Continu-
ous)
ACC(888) or
SPED(885)
(Continu-
ous)
ACC(888)
(Continu-
ous)
ACC(888)
(Continu-
ous)
ACC(888)
(Continu-
ous)
ACC(888)
(Continu-
ous)
ACC(888)
(Continu-
ous)
ACC(888)
(Continu-
ous, target
frequency of
0 Hz)
899