SMC Networks ITV0000 Series, Manual

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Electro-Pneumatic Regulator Electro-Pneumatic Regulator
Series Series
ITV1000/2000/3000 ITV1000/2000/3000
When the input signal rises, the air supply solenoid valve When the input signal rises, the air supply solenoid valve
q q
turns ON, and the exhaust solenoid valve turns ON, and the exhaust solenoid valve
w w
turns OFF. Therefore, turns OFF. Therefore,
supply pressure passes through the air supply solenoid valve supply pressure passes through the air supply solenoid valve
q q
and is applied to the pilot chamber and is applied to the pilot chamber
e e
. The pressure in the pilot . The pressure in the pilot
chamber chamber
e e
increases and operates on the upper surface of the diaphragm increases and operates on the upper surface of the diaphragm
r r
..
As a result, the air supply valve As a result, the air supply valve
t t
linked to the diaphragm linked to the diaphragm
r r
opens, and a portion of the supply pressure becomes output opens, and a portion of the supply pressure becomes output
pressure. pressure.
This output pressure feeds back to the control circuit
This output pressure feeds back to the control circuit
i i
via the pressure sensor via the pressure sensor
u u
. Here, a correct operation functions until the . Here, a correct operation functions until the
output pressure is proportional to the input signal, making it possible to always obtain output pressure proportional to the input output pressure is proportional to the input signal, making it possible to always obtain output pressure proportional to the input
signal. signal.
Working Principles Working Principles
Supply pressure Supply pressure
q q
Air supply solenoid valve Air supply solenoid valve
w w
Exhaust solenoid valve Exhaust solenoid valve
r r
D Diia ap ph hrra ag gm m P Piillo ot t v va allv ve e
u u
Pressure sensor Pressure sensor
i i
Control circuit Control circuit
IIn np pu ut t s siig gn na all O Ou uttp pu ut t p prre es ss su urre e
ITV2000, 3000 ITV2000, 3000 ITV1000 ITV1000
Working Principle Diagram Working Principle Diagram
Block Diagram Block Diagram
P P
EXH EXH
SUP SUP OUT OUT
EXH EXH
t t
Supply valve Supply valve
u u
Pressure sensor Pressure sensor
Input signal Input signal
P Po ow we er r s su up pp plly y O Ou uttp pu ut t s siig gn na all
r r
Diaphragm Diaphragm
e e
Pilot chamber Pilot chamber
P P
EXH EXH
w w
Exhaust Exhaust
solenoid
solenoid
valve
valve
u u
Pressure sensor Pressure sensor
q q
Air supply Air supply
solenoid
solenoid
valve
valve
Input signal Input signal
P Po ow we er r s su up pp plly y O Ou uttp pu ut t s siig gn na all
r r
Diaphragm Diaphragm
e e
Pilot chamber Pilot chamber
EXH EXH
OUT OUT
SUP SUP
w w
Exhaust Exhaust
solenoid
solenoid
valve
valve
y y
Exhaust Exhaust
valve
valve
t t
Supply Supply
valve
valve
Pressure display Pressure display
Pressure display Pressure display
i i
Control Control
circuit
circuit
i i
Control Control
circuit
circuit
q q
Air supply Air supply
solenoid
solenoid
valve
valve
A A
l l
p p
h h
a a
b b
e e
t t
i i
c c
a a
l l
I I
n n
d d
e e
x x
L L
e e
n n
g g
t t
h h
M M
e e
a a
s s
u u
r r
i i
n n
g g
/ /
C C
o o
u u
n n
t t
e e
r r
S S
t t
a a
t t
i i
c c
E E
l l
e e
c c
t t
r r
i i
c c
i i
t t
y y
E E
l l
i i
m m
i i
n n
a a
t t
i i
o o
n n
E E
q q
u u
i i
p p
m m
e e
n n
t t
R R
e e
d d
u u
c c
e e
d d
- -
w w
i i
r r
i i
n n
g g
F F
i i
e e
l l
d d
b b
u u
s s
S S
y y
s s
t t
e e
m m
P P
o o
s s
i i
t t
i i
o o
n n
D D
e e
t t
e e
c c
t t
i i
o o
n n
S S
w w
i i
t t
c c
h h
F F
l l
o o
w w
S S
e e
n n
s s
o o
r r
P P
r r
e e
s s
s s
u u
r r
e e
C C
o o
n n
t t
r r
o o
l l
P P
r r
e e
s s
s s
u u
r r
e e
S S
e e
n n
s s
o o
r r
A A