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Omron SYSDRIVE 3G3RV Series User Manual

Omron SYSDRIVE 3G3RV Series
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I
ndividual Functions
6
-
1
17
K
KK
K Using
PID
Control
PID
control
is
a
method
of
making
the
feedback
value
(detection
value)
match
the
set
target
value.
By
combin-
ing
proportional
control
(P),
integral
control
(I),
and
derivative
control
(D),
you
can
even
control
targets
(machinery)
with
play
time.
The
characteristics
of
the
PID
control
operations
are
given
below.
nPID
Control
Operation
To
understand
the
differences
between
each
PID
control
operation
(P,
I,
and
D,
the
variation
in
the
amount
of
operation
(output
frequency)
is
as
shown
in
the
following
diagram
when
the
deviation
(i.e.,
the
difference
between
the
target
value
and
feedback
value)
is
fixed.
Fig 6.75 PID Control Operation
nPID
Control
Applications
The
following
table
shows
examples
of
PID
control
applications
using
the
Inverter.
P
control Outputs
the
amount
of
operation
proportional
to
the
deviation.
You
cannot,
however,
set
the
deviation
to
zero
using
P
control
alone.
I
control Outputs
the
amount
of
operation
that
integrates
the
deviation.
Used
for
matching
feedback
value
to
the
target
value.
I
control
is
not
suited,
however,
to
rapid
variations.
D
control Outputs
the
amount
of
operation
derived
from
the
deviation.
Can
respond
promptly
to
rapid
variations.
Application Control
Details
Example
of
Sensor
Used
Speed
Con-
trol
•Feeds
back
machinery
speed
information,
and
matches
speed
to
the
target
value.
• Inputs
speed
information
from
other
machinery
as
the
target
value,
and
performs
synchronous
control
using
the
actual
speed
feedback.
Tachometer
genera-
tor
Pressure
Control
Feeds
back
pressure
information,
and
performs
constant
pressure
control. Pressure
sensor
Flow
Rate
Control
Feeds
back
flow
rate
information,
and
controls
the
flow
rate
highly
accurately. Flow
rate
sensor
Tempera-
ture
Con-
trol
Feeds
back
temperature
information,
and
performs
temperature
adjustment
control
by
rotating
the
fan.
• Thermocouple
• Thermistor
Deviation
I control
Amount of operation
D control
Time
PID control
Time
P control

Table of Contents

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Omron SYSDRIVE 3G3RV Series Specifications

General IconGeneral
BrandOmron
ModelSYSDRIVE 3G3RV Series
CategoryInverter
LanguageEnglish

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