Dynisco UPR900 Manual Aplikasi dan Pengaturan - Halaman 7

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Halaman Cetak
Setting
Up
ATC990
for
Use

Pressure
Setup
&
Automatic
Tuning
&
Operation



1. Power
up
the
instrument
and
if
in
automatic
control
mode
alarm
types
and
values
as
required
for
your
application
(see
alarm
configuration).

2. Set
local
setpoint
1
as
the
active
setpoint,
and
its
value
to
the
required
operating
pressure
3. Allow
the
process
to
reach
operating
temperature,
then
carefully
adjust
the
manual
power
level
(use
UP
&
DOWN
keys

from
the
main
screen)
to
bring
the
process
approximately
to
the
operating
pressure.

4. Select
the
automatic
tuning
menu,
and
set
"Run
Pressure
Pre‐Tune"
to
YES.

5. Press
the
RIGHT
key.
The
Pressure
Tune
Status
screen
shows
the
current
status
‐e.g.
"Running",
and
The
TUNE
LED
is

flashes
until
the
pre‐tune
is
completed.

6. The
instrument
adds
the
defined
Pressure
Tune
Output
pulse
is
observed
and
the
instrument
calculates
and
stores
the
correct
PI
tuning
terms.
Pre‐tune
is
now
complete
and
exits.

7. Automatic
control
can
now
be
selected,
where
the
control
power
output
level
is
maintained
by
the
controller.
If

setpoint
mode
was
selected
as
the
auto/manual
transfer
method,
some
adjustment
of
the
setpoint
may
be
required
8. Optionally
Pressure
Self‐Tune
may
be
used
once
in
automatic
control
mode,
by
selecting
the
automatic
tuning
menu,

and
setting
"Run
Pressure
Self‐Tune"
to
YES


Notes
for
Setup
&
Automatic
Tuning
&
Operation



1. The
initial
"power‐up
control
state"
can
be
set
to
manual
or
automatic
from
the
control
configuration
menu,
the
default

is
manual
mode
at
0%
power
immediately
go
to
manual
mode
from
any
point,
simply
press
the
LEFT
&
RIGHT
keys
simultaneously.

The
transition
from
auto
to
manual
control
while
running
is
Bumpless.
It
takes
the
last
PI
power
level
as
the
initial

manual
control
power
level.



2. Manual
power
can
be
expressed
in
%
or
RPM.
For
RPM,
enable
"Scaled
Power"
in
the
control
configuration
menu,
then

scale
0%
and
100%
power
to
their
equivalent
RPM
values).





3. Setpoint
Select
and
the
setpoint
value
screen
is
in
operation
mode.
Setpoint
upper
and
lower
limits
can
be
set
in
the

control
configuration
menu.



4. The
Pressure
Tune
Output
pulse
value
is
set
in
the
control
configuration
menu.
The
pulse
can
be
from
‐25%
to
+25%.

Default
is
10%.





5. The
method
of
transition
from
manual
to
automatic
control
is
set
in
the
control
configuration
menu.
Two
methods
are

possible,
both
ensure
a
smooth
transition
to
automatic
mode:

a. Bumpless
Mode
sets
the
initial
PI
power
level
to
match
the
previous
manual
power
vale,
then
uses
the
integral

function
progressively
alter
the
power
to
the
correct
value.

b. Setpoint
Mode
modified
the
current
Setpoint
value
to
the
measured
input
pressure
value
at
the
time
of
switchover.

The
operator
can
change
the
setpoint
value
from
the
setpoint
value
screen
and
the
PI
control
algorithm
will
adjust

the
process
to
this
value.

(6.)
.
The
TUNE
LED
is
lit
if
Self‐tune
is
enabled.

(2).
.
Auto
or
manual
mode
can
be
selected
from
the
auto/manual
control
menu,
or
to

(1.)
,
change
to
manual
mode
at
0%
power/0
RPM
(4.)

to
the
current
manual
power
level,
the
process
reaction

(2).
.
Set
the

(3)
.



(5.)
.