Omron CJ - REFERENCE MANUAL 10-2009 Reference Manual page 787

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.
Opera-
Purpose Application
tion
Starting To output Accelerating the
pulse with speed (frequency)
output specified at a fixed rate
acceleration
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
Stopping To stop Immediate stop
pulse pulse output
output
To stop Immediate stop
pulse output
To stop Decelerating to a
pulse output stop
smoothly
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Frequency changes
Pulse frequency
Target frequency
Acceleration/
deceleration
rate
Present frequency
Execution of
ACC(888)
Pulse frequency
Target frequency
Acceleration/
deceleration
rate
Present frequency
Execution of
ACC(888)
Pulse frequency
Acceleration rate n
Target frequency
Acceleration
rate 2
Acceleration
rate 1
Present frequency
Execution of ACC(888)
Execution of ACC(888)
Execution of ACC(888)
Pulse frequency
Acceleration/deceleration rate 1
Present
frequency
Target
frequency = 0
Execution of ACC(888)
Execution of ACC(888)
Execution of ACC(888)
(target frequency = 0)
Pulse frequency
Present frequency
Execution of ACC(888)
Execution of INI(880)
Pulse frequency
Present frequency
Execution of ACC(888) Execution of SPED(885)
Pulse frequency
Acceleration/deceleration
Present frequency
rate (value set when starting)
Target frequency = 0
Execution of ACC(888)
Execution of ACC(888)
Description
Outputs pulses and
changes the frequency at
a fixed rate.
Time
Changes the frequency
from the present
frequency at a fixed rate.
The frequency can be
accelerated or
decelerated.
Time
Changes the
acceleration or
deceleration rate during
acceleration or
deceleration.
Time
The deceleration rate is
changed while
decelerating.
Note If the target
Acceleration/
frequency is set to
deceleration rate 2
0 Hz, the current
Time
deceleration rate
will be used.
Immediately stops pulse
output.
Time
Immediately stops pulse
output.
Time
Decelerated pulse output
to a stop.
Note If the target
frequency of the
second ACC(888)
instruction is 0 Hz,
Time
the deceleration
rate from the first
ACC(888)
instruction will be
used.
3. Instructions
Procedure/
instruction
ACC(888)
(Continuous)
ACC(888) or
SPED(885)
(Continuous)
3
ACC(888)
(Continuous)
ACC(888)
(Continuous)
ACC(888)
(Continuous)
ACC(888)
(Continuous)
ACC(888)
(Continuous)
ACC(888)
(Continuous,
target
frequency of
0 Hz)
ACC(888)
(Continuous)
INI(880)
(Continuous)
ACC(888)
(Continuous)
SPED(885)
(Continuous,
target
frequency of 0)
ACC(888)
(Continuous)
ACC(888)
(Continuous,
target
frequency of 0)
749