Wo
Working Principle
rking Principle Diagram
Diagram
Block Diagram
Block Diagram
Discharged to atmosphere
Discharged to atmosphere
Output pressure
Output pressure
Input signal
Input signal
+
+
–
–
Supply pressure
Supply pressure
Working Principle
Working Principle
When the input signal rises, the air
When the input signal rises, the air supply soloenoid valve
supply soloenoid valve
q
q
turns ON. Due to this, part of
turns ON. Due to this, part of the supply pressure passes through
the supply pressure passes through
the air supply solenoid valve
the air supply solenoid valve
q
q
and changes to output pressure. This output pressure feeds back to the control circuit
and changes to output pressure. This output pressure feeds back to the control circuit
r
r
via the
via the
pressure sensor
pressure sensor
e
e
. Here, pressure corrections continue until output pressure becomes proportional to the input signal, enabling
. Here, pressure corrections continue until output pressure becomes proportional to the input signal, enabling
output pressure that is proportional to the input signal.
output pressure that is proportional to the input signal.
q
q
Air supply
Air supply
solenoid valve
solenoid valve
w
w
Exhaust
Exhaust
solenoid valve
solenoid valve
r
r
Control
Control
circuit
circuit
e
e
Pressure
Pressure
sensor
sensor
P
P
EXH
EXH
SUP
SUP
OUT
OUT
w
w
Exhaust solenoid valve
Exhaust solenoid valve
e
e
Pressure sensor
Pressure sensor
q
q
Air supply solenoid valve
Air supply solenoid 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
Control circuit
Control circuit
Power supply and error
Power supply and error
LED indication
LED indication
160
160
Series
Series
ITV0000
ITV0000
A
A