Omron CJ2M-CPU Series User Manual

8 Pulse Outputs
8-90
CJ2M CPU Unit Pulse I/O Module User’s Manual
* Triangular Control
If the specified number of pulses is less than the number required just to reach the target frequency and
return to zero, the function will automatically reduce the acceleration/deceleration time and perform triangu-
lar control (acceleration and deceleration only.) An error will not occur.
Changing Settings
Operation
Example
application
Frequency changes Function
Procedure
Instructions Settings
Change
speed in
one step
Changing
the speed in
one step
during oper-
ation
The SPED(885)
instruction can be
executed during
positioning to
change (raise or
lower) the pulse
output frequency in
one step. The tar-
get position (speci-
fied number of
pulses) is not
changed.
PULS
↓
SPED (Inde-
pendent)
↓
SPED (Inde-
pendent)
• Number of
pulses
• Relative or
absolute
pulse speci-
fication
•Port
•Pulse +
direction
• Indepen-
dent
• Target fre-
quency
Change
speed
smoothly
(with
accelera-
tion rate =
decelera-
tion rate)
Changing
the target
speed (fre-
quency)
during posi-
tioning
(accelera-
tion rate =
decelera-
tion rate)
ACC(888) can be
executed during
positioning to
change the accel-
eration/ decelera-
tion rate and target
frequency.
The target position
(specified number
of pulses) is not
changed.
PULS
↓
ACC (Inde-
pendent)
↓
ACC (Inde-
pendent)
• Number of
pulses
• Relative or
absolute
pulse speci-
fication
•Port
•Pulse +
direction
• Indepen-
dent
• Accelera-
tion/decel-
eration rate
• Target fre-
quency
PLS2
↓
ACC (Inde-
pendent)
Pulse frequency
Target
frequency
ACC instruction executed.
Time
Specified number of pulses
(Specified with PULS)
Pulse frequency
Target
frequency
PLS2 instruction executed.
Specified number of pulses
(Specified with PLS2)
Time
Pulse frequency
New target frequency
Target frequency
SPED (Independent)
executed.
SPED (independent mode)
executed again to change the
target frequency. (The target
position is not changed.)
Time
Specified number of
pulses (Specified with
PULS)
Number of pulses
specified with PULS
does not change.
Pulse frequency
New target
frequency
Target frequency
Time
Specified number of
pulses (Specified
with PULS)
Number of pulses
specified with PULS
does not change.
ACC (independent
mode) executed
ACC (independent) executed again
to change the target frequency. (The
target position is not changed. The
acceleration/deceleration rate is
changed.)
Acceleration/
deceleration rate

Omron CJ2M-CPU Series Specifications

General

Power Supply	24 VDC
Number of Instructions	Over 400 instructions
Model	CJ2M-CPU11, CJ2M-CPU12, CJ2M-CPU13, CJ2M-CPU14, CJ2M-CPU15
Program Capacity	5K steps to 60K steps
I/O Capacity	Up to 2, 560 points
Communication Ports	Ethernet, USB, RS-232C
Execution Time	0.04 µs per basic instruction
Operating Temperature	0 to 55°C
Position Control	Supported
High-speed Counter	100 kHz max.
Pulse Output	100 kHz max.
Maximum Units	40 units
Storage Temperature	-20 to 75°C
Interrupt Inputs	Supported