Omron CP1H CPU UNITS - PROGRAMMING 05-2007, Руководство по эксплуатации

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243
Pulse Outputs
Section 5-3
Change
speed
smoothly
(with
unequal
acceleration
and deceler-
ation rates) Changing
the target
speed (fre-
quency) dur-
ing
positioning
(different
acceleration
and deceler-
ation rates) PLS2(887) can be
executed during
positioning to
change the acceler-
ation rate, decelera-
tion rate, and target
frequency.
Note To prevent
the target
position from
being
changed
intentionally,
the original
target posi-
tion must be
specified in
absolute
coordinates.
PULS(886)
↓
ACC(888)
(Indepen-
dent)
↓
PLS2(887)
•Number
of pulses
•Relative
or abso-
lute pulse
specifica-
tion
•Port
•“CW/
CCW” or
“Pulse +
direction”
•Accelera-
tion rate
•Decelera-
tion rate
•Target fre-
quency
•Starting
frequency
PLS2(887)
↓
PLS2(887)
Change tar-
get position Change the
target posi-
tion during
positioning
(multiple
start func-
tion) PLS2(887) can be
executed during
positioning to
change the target
position (number of
pulses).
Note When the tar-
get position
cannot be
changed
without main-
taining the
same speed
range, an
error will
occur and the
original oper-
ation will con-
tinue to the
original tar-
get position.
PULS(886)
↓
ACC(888)
(Indepen-
dent)
↓
PLS2(887)
•Number
of pulses
•Relative
or abso-
lute pulse
specifica-
tion
•Port
•“CW/
CCW” or
“Pulse +
direction”
•Accelera-
tion rate
•Decelera-
tion rate
•Target fre-
quency
•Starting
frequency
PLS2(887)
↓
PLS2(887)
PLS2(887)
↓
PLS2(887)
Operation Example
application
Frequency changes Description Procedure
Instruction Settings
Pulse
frequency
New target
frequency
Original target
frequency
Specified number of
pulses (Specified
with PULS(886).)
Acceleration/
deceleration
rate
Execution of
ACC(888)
(independent
mode)
PLS2(887) executed to
change the target frequen-
cy and acceleration/decel-
eration rates.
(The target position is not
changed. The original tar-
get position is specified
again.)
Time
Pulse
frequency
Target
frequency
Acceleration/
deceleration
rate
Specified
number of
pulses
Number of pulses
changed with
PLS2(887).
Execution of
PLS2(887)
PLS2(887) executed to
change the target position.
(The target frequency and
acceleration/deceleration
rates are not changed
Time