Omron CP - PROGRAMMING MANUAL 05-2007 - Page 769

736
High-speed Counter/Pulse Output Instructions Section 3-20
Chang-
ing set-
tings,
contin-
ued
To
change
target
position
and
speed
smoothly
Changing the
target position
and target
speed (fre-
quency) during
positioning
(multiple start
function)
PLS2(887) can be
executed during
positioning to
change the target
position (number of
pulses), accelera-
tion rate, decelera-
tion rate, and target
frequency.
Note If a constant
speed cannot
be main-
tained after
changing the
settings, an
error will
occur and the
original opera-
tion will con-
tinue to the
original target
position.
PULS(886)
↓
ACC(888)
(Indepen-
dent)
↓
PLS2(887)
Changing the
acceleration
and decelera-
tion rates dur-
ing positioning
(multiple start
function)
PLS2(887) can be
executed during
positioning (acceler-
ation or decelera-
tion) to change the
acceleration rate or
deceleration rate.
PLS2(887)
↓
PLS2(887)
PULS(886)
↓
ACC(888)
(Indepen-
dent)
↓
PLS2(887)
To
change
direction
Changing the
direction dur-
ing positioning
PLS2(887) can be
executed during
positioning with
absolute pulse spec-
ification to change to
absolute pulses and
reverse direction.
PLS2(887)
↓
PLS2(887)
PULS(886)
↓
ACC(888)
(Indepen-
dent)
↓
PLS2(887)
Opera-
tion
Purpose Application Frequency changes Description Procedure/
instruction
Pulse
frequency
Target frequency
Acceleration/
deceleration
rate
Number of
pulses specified
with PLS2(887).
Execution of
PLS2(887)
PLS2(887) executed to change
the target frequency, acceleration
rate and deceleration rate.
Time
Number of pulses
changed with PLS2(887).
Changed target
frequency
Pulse
frequency
New target
frequency
Original target
frequency
Acceleration rate n
Acceleration
rate 3
Acceleration
rate 2
Acceleration
rate 1
Number of pulses
specified by
PLS2(887) #N.
Execution of
PLS2(887) #1
Execution of
PLS2(887) #2
Execution of PLS2(887) #3
Execution of PLS2(887) #N
Time
Pulse
frequency
Target
frequency
Specified
number of
pulses
Change of direction at the
specified deceleration rate
Number of pulses
(position) changed
by PLS2(887)
Execution
of PLS2
(887)
Execution of PLS2(887)
Time