14:
PID
I
NSTRUCTION
FC5A
M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y
‐
B1273
14
‐
15
S2+0 Control
Action
When
auto
tuning
is
executed
with
the
operation
mode
(S1+3)
set
to
1
(AT+PID),
2
(AT),
3
(advanced
AT+PID),
or
4
(advanced
AT),
the
control
action
is
determined
automatically.
When
auto
tuning
results
in
a
direct
control
action,
the
control
action
control
relay
designated
by
S2+0
is
turned
on.
When
auto
tuning
results
in
a
reverse
control
action,
the
control
action
control
relay
designated
by
S2+0
is
turned
off.
The
PID
action
is
executed
according
to
the
derived
control
action,
which
remains
in
effect
during
the
PID
action.
When
auto
tuning
is
not
executed
with
the
operation
mode
(S1+3)
set
to
0
(PID),
turn
on
or
off
the
control
action
control
relay
(S2+0)
to
select
a
direct
or
reverse
control
action,
respec
‐
tively,
before
executing
the
PID
instruction.
In
the
direct
control
action,
the
manipulated
variable
(D1)
is
increased
while
the
process
variable
(S1+0)
is
larger
than
the
set
point
(S3).
Temperature
control
for
cooling
is
executed
in
the
direct
control
action.
In
the
reverse
control
action,
the
manipulated
variable
(D1)
is
increased
while
the
process
variable
(S1+0)
is
smaller
than
the
set
point
(S3).
Temperature
control
for
heating
is
executed
in
the
reverse
control
action.
In
either
the
direct
or
reverse
control
action,
the
manipulated
variable
(D1)
is
increased
while
the
difference
between
the
process
variable
(S1+0)
and
the
set
point
(S3)
increases.
S2+1 Auto/Manual
Mode
To
select
auto
mode,
turn
off
the
auto/manual
mode
control
relay
designated
by
S2+1
before
or
after
starting
the
PID
instruction.
In
auto
mode,
the
PID
action
is
executed
and
the
manipulated
variable
(D1)
stores
the
PID
calculation
result.
The
control
output
(S2+6)
is
turned
on
and
off
according
to
the
control
period
(S1+13)
and
the
output
manipulated
vari
‐
able
(S1+1).
To
select
manual
mode,
turn
on
the
auto/manual
mode
control
relay
(S2+1).
When
using
manual
mode,
set
a
required
value
to
the
manual
mode
output
manipulated
variable
(S1+18)
before
enabling
manual
mode.
In
manual
mode,
the
out
‐
put
manipulated
variable
(S1+1)
stores
the
manual
mode
output
manipulated
variable
(S1+18),
and
the
output
manipu
‐
lated
variable
for
analog
output
module
(S1+24)
stores
a
value
of
0
through
4095
or
50000
converted
from
the
manual
mode
output
manipulated
variable
(S1+18).
The
control
output
(S2+6)
is
turned
on
and
off
according
to
the
control
period
(S1+13)
and
the
manual
mode
output
manipulated
variable
(S1+18).
The
S1+18
value
has
no
effect
on
the
manipulated
value
(D1)
and
the
output
manipulated
variable %
(S1+23).
While
auto
tuning
is
in
progress,
manual
mode
cannot
be
enabled.
Only
after
auto
tuning
is
complete,
auto
or
manual
mode
can
be
enabled.
Auto/manual
mode
can
also
be
switched
while
executing
the
PID
instruction.
S2+2 Output
Manipulated
Variable
Limit
Enable
The
output
manipulated
variable
upper
limit
(S1+16)
and
the
output
manipulated
variable
lower
limit
(S1+17)
are
enabled
or
disabled
using
the
output
manipulated
variable
limit
enable
control
relay
(S2+2).
To
enable
the
output
manipulated
variable
upper/lower
limits,
turn
on
S2+2.
To
disable
the
output
manipulated
variable
upper/lower
limits,
turn
off
S2+2.
S2+3 Integral
Start
Coefficient
Disable
The
integral
start
coefficient
(S1+10)
is
enabled
or
disabled
using
the
integral
start
coefficient
disable
control
relay
(S2+3).
To
enable
the
integral
start
coefficient
(S1+10),
turn
off
S2+3;
the
integral
term
is
enabled
as
specified
by
the
integral
start
coefficient
(S1+10).
To
disable
the
integral
start
coefficient
(S1+10),
turn
on
S2+3;
the
integral
term
is
enabled
at
the
start
of
the
PID
action.
S2+4 High
Alarm
Output
When
the
process
variable
(S1+0)
is
higher
than
or
equal
to
the
high
alarm
value
(S1+14),
the
high
alarm
output
control
relay
(S2+4)
goes
on.
When
S1+0
is
lower
than
S1+14,
S2+4
is
off.
Process
Variable
(S1+0)
Direct
Control
Action
Set
Point
(S3)
Time
Process
Variable
(S1+0)
Reverse
Control
Action
Set
Point
(S3)
Time
Summary of Contents for MICROSmart FC5A Series
Page 1: ...FC5A SERIES FC9Y B1273 1 User s Manual Advanced Volume ...
Page 2: ......
Page 8: ...Preface 6 FC5A MicroSmart User s Manual FC9Y B1273 ...
Page 14: ...TABLE OF CONTENTS vi FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 52: ...4 DATA COMPARISON INSTRUCTIONS 4 10 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 72: ...5 Binary Arithmetic Instructions 5 20 FC5A MicroSmart User s Manual FC9Y B1273 ...
Page 88: ...7 SHIFT ROTATE INSTRUCTIONS 7 12 FC5A MicroSmart User s Manual FC9Y B1273 ...
Page 112: ...8 DATA CONVERSION INSTRUCTIONS 8 24 FC5A MicroSmart User s Manual FC9Y B1273 ...
Page 138: ...11 PROGRAM BRANCHING INSTRUCTIONS 11 14 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 178: ...13 PULSE INSTRUCTIONS 13 32 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 202: ...14 PID INSTRUCTION 14 24 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 206: ...15 DUAL TEACHING TIMER INSTRUCTIONS 15 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 214: ...16 INTELLIGENT MODULE ACCESS INSTRUCTIONS 16 8 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 248: ...21 COMPUTER LINK COMMUNICATION 21 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 272: ...23 MODBUS TCP COMMUNICATION 23 10 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 332: ...25 EXPANSION RS232C RS485 COMMUNICATION 25 16 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Page 341: ...NOTE FC5A MICROSMART USER S MANUAL FC9Y B1273 1 ...
Page 342: ...NOTE 2 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...