ITV2050-04N2CL4 SMC Corporation, ITV2050-04N2CL4 Datasheet - Page 15

• Manufacturer Part Number: ITV2050-04N2CL4
• Description: REGULATOR, PNEUMATIC, .005-.9MPA RANGE, 24VDC, 1/4 PORT
• Manufacturer: SMC Corporation

Working Principle
When the input signal rises, the air supply solenoid valve q turns ON, and the exhaust
solenoid valve w turns OFF. Therefore, supply pressure passes through the air supply
solenoid valve q and is applied to the pilot chamber e. The pressure in the pilot
chamber e increases and operates on the upper surface of the diaphragm r.
As a result, the air supply valve t linked to the diaphragm r opens, and a portion of
the supply pressure becomes output pressure.
This output pressure feeds back to the control circuit i via the pressure sensor u.
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
signal.
14-8-16
Series
r Diaphragm
q Air supply
Power supply
Block diagram
Input signal
Working Principle Diagram
solenoid
valve
SUP
Input signal
ITV1000/2000/3000
ITV1000
i Control
Pressure display
i Control circuit
circuit
Output signal
w Exhaust
OUT
EXH
q Air supply solenoid valve
w Exhaust solenoid valve
u Pressure sensor
solenoid
valve
u Pressure sensor
t Supply valve
e Pilot chamber
EXH
Supply pressure
r Diaphragm
t Supply
q Air supply
y Exhaust
Power supply
valve
Input signal
solenoid
valve
valve
SUP
r Diaphragm
ITV2000, 3000
i Control
Pressure display
circuit
Pilot valve
Output signal
Output pressure
EXH
OUT
w Exhaust
EXH
e Pilot
u Pressure
solenoid
valve
chamber
sensor