14:
PID
I
NSTRUCTION
FC5A
M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y
‐
B1273
14
‐
9
S1+9 Derivative
Time
The
derivative
action
is
a
function
to
adjust
the
process
variable
(S1+0)
to
the
set
point
(S3)
by
increasing
the
manipulated
variable
(D1)
when
the
set
point
(S3)
is
changed
or
when
the
difference
between
the
process
variable
(S1+0)
and
the
set
point
(S3)
is
increased
due
to
disturbance.
The
derivative
time
is
a
parameter
to
determine
the
amount
of
derivative
action.
When
auto
tuning
is
used
by
setting
the
operation
mode
(S1+3)
to
1
(AT+PID),
2
(AT),
3
(advanced
AT+PID),
or
4
(advanced
AT),
a
derivative
time
is
determined
automatically
and
does
not
have
to
be
designated
by
the
user.
When
auto
tuning
is
not
used
by
setting
the
operation
mode
(S1+3)
to
0
(PID),
set
a
required
value
of
1
through
65535
to
specify
a
derivative
time
of
0.1
sec
through
6553.5
sec
to
the
data
register
designated
by
S1+9.
When
S1+9
is
set
to
0,
the
derivative
action
is
disabled.
When
the
derivative
time
is
set
to
a
large
value,
the
derivative
action
becomes
large.
When
the
derivative
action
is
too
large,
hunching
of
a
short
period
is
caused.
While
the
PID
action
is
in
progress,
the
derivative
time
value
can
be
changed
by
the
user.
S1+10 Integral
Start
Coefficient
The
integral
start
coefficient
specifies
the
threshold
value
to
start
the
integral
action.
If
the
integral
action
is
enabled
from
the
start
of
execution
of
the
PID
instruction,
this
may
cause
the
process
variable
to
be
overshot.
Overshooting
can
be
controlled
by
delaying
the
start
of
the
integral
action
with
the
integral
start
coefficient
linked
to
the
proportional
term.
If
the
integral
start
coefficient
is
too
small,
overshooting
is
eliminated,
but
a
certain
amount
of
difference
(offset)
between
the
set
point
and
the
process
variable
may
occur.
If
the
integral
start
coefficient
is
too
large,
the
offset
becomes
smaller,
but
overshooting
may
occur.
To
enable
the
integral
start
coefficient,
turn
off
the
integral
start
coefficient
disable
relay
(S2+3).
To
disable
the
integral
start
coefficient,
turn
on
the
integral
start
coefficient
disable
relay
(S2+3).
When
the
control
mode
(S1+4)
proportional
term
is
proportional
gain:
Specify
a
value
between
1
and
100
(1%
to
100%).
0
or
101
or
higher
operates
as
100%.
When
the
control
mode
(S1+4)
proportional
term
is
proportional
band:
The
operation
in
regard
to
the
preset
value
differs
according
to
the
system
program
version
as
detailed
in
the
following
table.
S1+11 Input
Filter
Coefficient
The
input
filter
has
an
effect
to
smooth
out
fluctuations
of
the
process
variable
(S4).
Set
a
required
value
of
0
through
99
to
specify
an
input
filter
coefficient
of
0%
through
99%
to
the
data
register
designated
by
S1+11.
When
S1+11
stores
a
value
larger
than
99,
the
input
filter
coefficient
is
set
to
99%.
The
larger
the
coefficient,
the
larger
the
input
filter
effect.
The
input
filter
is
effective
for
reading
a
process
variable
(S4)
such
as
temperature
data
when
the
value
changes
at
each
sampling
time.
The
input
filter
coefficient
is
in
effect
during
auto
tuning
and
PID
action.
CPU
modules
System
program
version
Operation
FC5A
‐
C10R2x
FC5A
‐
C16R2x
FC5A
‐
C24R2x
FC5A
‐
D16Rx1
FC5A
‐
D32x3
245
or
lower
This
preset
value
is
not
used.
The
integral
start
coefficient
always
operates
as
100%.
246
or
higher
Specify
a
value
between
10,001
and
10,100
(1%
to
100%).
10,000
or
lower
or
10,101
or
higher
operates
as
100%
FC5A
‐
D12x1E
130
or
lower
This
preset
value
is
not
used.
The
integral
start
coefficient
always
operates
as
100%.
131
or
higher
Specify
a
value
between
10,001
and
10,100
(1%
to
100%).
10,000
or
lower
or
10,101
or
higher
operates
as
100%
Process Variable
When the integral start coefficient is large
When the integral start coefficient is small
Set Point
Time
Reverse Control Acon
Process Variable
Set Point
Time
Reverse Control Acon
Содержание MICROSmart FC5A Series
Страница 1: ...FC5A SERIES FC9Y B1273 1 User s Manual Advanced Volume ...
Страница 2: ......
Страница 8: ...Preface 6 FC5A MicroSmart User s Manual FC9Y B1273 ...
Страница 14: ...TABLE OF CONTENTS vi FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 52: ...4 DATA COMPARISON INSTRUCTIONS 4 10 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 72: ...5 Binary Arithmetic Instructions 5 20 FC5A MicroSmart User s Manual FC9Y B1273 ...
Страница 88: ...7 SHIFT ROTATE INSTRUCTIONS 7 12 FC5A MicroSmart User s Manual FC9Y B1273 ...
Страница 112: ...8 DATA CONVERSION INSTRUCTIONS 8 24 FC5A MicroSmart User s Manual FC9Y B1273 ...
Страница 138: ...11 PROGRAM BRANCHING INSTRUCTIONS 11 14 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 178: ...13 PULSE INSTRUCTIONS 13 32 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 202: ...14 PID INSTRUCTION 14 24 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 206: ...15 DUAL TEACHING TIMER INSTRUCTIONS 15 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 214: ...16 INTELLIGENT MODULE ACCESS INSTRUCTIONS 16 8 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 248: ...21 COMPUTER LINK COMMUNICATION 21 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 272: ...23 MODBUS TCP COMMUNICATION 23 10 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 332: ...25 EXPANSION RS232C RS485 COMMUNICATION 25 16 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 341: ...NOTE FC5A MICROSMART USER S MANUAL FC9Y B1273 1 ...
Страница 342: ...NOTE 2 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...