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 ITV1-TFK02-A

 

 

Installation and Maintenance Manual 

Electro-Pneumatic Regulator with negative 
terminal of power line separated from signal 
line. 

Series ITV1000-DIK00137  

1 Safety Instructions 

This manual contains essential information for the protection of users and 
others from possible injury and/or equipment damage. 

• 

Read this manual before using the product, to ensure correct handling, 
and read the manuals of related apparatus before use. 

• 

Keep this manual in a safe place for future reference. 

• 

These instructions indicate the level of potential hazard by label of 
“Caution”, “Warning” or “Danger”, followed by important safety 
information which must be carefully followed. 

• 

To ensure safety of personnel and equipment the safety instructions in 
this manual and the product catalogue must be observed, along with 
other relevant safety practices. 

 

 

Caution 

Indicates a hazard with a low level of risk, which if 
not avoided, could result in minor or moderate injury. 

 

Warning 

Indicates a hazard with a medium level of risk, which 
if not avoided, could result in death or serious injury. 

 

Danger 

Indicates a hazard with a high level of risk, which if 
not avoided, will result in death or serious injury. 

• 

Electromagnetic compatibility:  
This product is class A equipment intended for use in an industrial 
environment. There may be potential difficulties in ensuring 
electromagnetic compatibility in other environments due to conducted as 
well as radiated disturbances. 

 

 

• 

The compatibility of pneumatic equipment is the responsibility of 
the person who designs the pneumatic system or decides its 
specifications

Since the products specified here can be used in various operating 
conditions, their compatibility with the specific pneumatic system must 
be based on specifications or after analysis and/or tests to meet specific 
requirements. 

• 

Only trained personnel should operate pneumatically operated 
machinery and equipment. 

Compressed air can be dangerous if an operator is unfamiliar with it. 
Assembly, handling or repair of pneumatic systems should be performed 
by trained and experienced personnel. 

• 

Do not service machinery/equipment or attempt to remove 
components until safety is confirmed. 

• 

Inspection and maintenance of machinery/equipment should only be 
performed after confirmation of safe locked-out control positions. 

• 

When equipment is to be removed, confirm the safety process as 
mentioned above. Switch off air and electrical supplies and exhaust all 
residual compressed air in the system. 

• 

Before machinery/equipment is re-started, ensure all safety measures 
to prevent sudden movement of cylinders etc. (Supply air into the 
system gradually to create back pressure, i.e. incorporate a soft-start 
valve). 

• 

Do not use this product outside of the specifications. Contact SMC 
if it is to be used in any of the following conditions: 

• 

Conditions and environments beyond the given specifications, or if the 
product is to be used outdoors. 

• 

Installations in conjunction with atomic energy, railway, air navigation, 
vehicles, medical equipment, food and beverage, recreation equipment, 
emergency stop circuits, press applications, or safety equipment. 

• 

An application, which has the possibility of having negative effects on 
people, property, or animals, requiring special safety analysis.  

 

 

• 

Ensure that the air supply system is filtered to 5 microns. 

2 Specifications 

Model 

   

 

ITV1010

ITV1030

ITV1050

Min. supply pressure 

(Set pressure) + 0.1 MPa 

Max. supply pressure 

0.2 MPa 

1.0 MPa 

Set pressure range 

0.005 ~ 0.1 MPa  0.005 ~ 0.5 MPa

0.005 ~ 0.9 MPa

Supply voltage 

24 VDC±10% 

Current consumption 

Max. 120 mA 

Input signal 

Note1

4-20 mADC 

Input impedance

 

Max. 250 

 

Linearity 

 

 

Max. ±1%F.S.

Hysteresis Max. 0.5%F.S. 

Repeatability 

 

 

Max. ±0.5%F.S.

Sensitivity 

 

 

Max. 0.2%F.S.

Temperature characteristics 

Max. ±0.12%F.S./°C 

Operating temperature 

0~50°C (without condensation) 

Accuracy 

 

±3%F.S

Pressure 

display 

Min. Unit 

MPa: 0.01, kgf/cm

2

: 0.01, bar: 0.01,  

PSI: 0.1

 Note 2

, kPa: 1 

Protection structure 

Main unit: IP65, Cable connector: IP67 

Table 1. 

 

Note 1: Two wire 4 to 20 mADC control. Negative terminal of power line is separated 

from that of signal line. 

Note 2: 1 PSI is the minimum unit on ITV1050. 
 
 
 
 
 
 
 
 
 
 
 
 

 

3 Operation Principle 

When the input signal increases the supply solenoid valve 

n

 turns on and 

the exhaust solenoid valve 

o

 turns off. Supply pressure is passed to the 

pilot valve 

p

 through the supply solenoid valve. The pilot valve will open 

the main valve allowing partial supply pressure to pass to the out port. The 
pressure sensor 

q

 will provide output pressure feedback to the control 

circuit 

r

. The control circuit will balance the input signal and output 

pressure to ensure that the output pressure remains proportional to the 
input signal. 

 
 
 
 
 
 
 
 
 

Fig. 1 - Control diagram 

 
 

 

 

Fig. 2 - Schematic diagram 

4 Wiring 

 

Connect the cable to the connector on the main unit as shown in the 
following diagram. Take precautions, as incorrect wiring will damage the 
unit. Use a DC power supply capable of supplying the necessary power 
requirements with minimal ripple.  
 

                                                                Fig. 3 - Connection details                                                 

                                      

  

       

Note: The right angle type                     

                       

 

                                    

                                        connector extends to  

      

      

                                                                                         the left side (over the 

                                                                                         supply port side)

 

 
 
 
 
 
 
                                                                                                                                                                           

                          Current signal type       

Vs:

Power supply 

24 VDC 

A:

Input signal  

4 to 20 mADC 

 
 

              

                            Fig. 4 - Wiring diagram 

 
 
         

Straight type connector

                                                                                     

                                                                      
                                                     
 
 

               

Right angle type connector

 

 

                                     

  

       

Fig. 5 – Connector types 

 

 

5 Setting the Regulator 

 

When the ‘set’ key is operated minimum/maximum pressure will be present 
at the outlet port. When primary pressure is applied to the regulator 
minimum pressure will be present at the outlet port. 

 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

Fig. 6 - Key features of the ITV

 

• Release ‘Key Lock ’as explained in section ‘Function of Key-Lock’ 
• After releasing key lock, SET needs to be pressed again to get to F-1 
• To set minimum pressure (display shows F-1) use up/down keys and    

press ‘Set’ key to ‘Lock’ setting. 

• To set maximum pressure (display shows F-2) use up/down keys and 

press ‘Set’ key to ‘Lock’ setting.  

Note 1: If the above sequence has been followed correctly, the settings will 

complete automatically.  

Note 2: If only setting minimum pressure, when pressure is ‘Set’, pressing 

the set button once more will ‘skip’ to the next step.. 

 
 
 

6 Function of Key-Lock 

The keys are locked after connecting power and cannot be operated. ‘Loc’ 
is displayed when any keys are pushed.  
 
• Key-Lock Release 
• Push ‘Down’ key for longer than 2 seconds. 
• Display will flash ‘Loc’ (locked). 
• Push ‘Set’ key to unlock. 
Note: To cancel push ‘Up’ key. 

Power 
Input  
Power supply –
Input signal – 

Brown
White
Blue 
Black

Brown

Blue

White

Black

 
• Key-Lock• Push ‘Up’ key for longer than 2 seconds. 
• Display will flash ‘unL’ (unlocked). 

Note

• Push ‘Set’ key to lock. 

Brown

Blue

Main 

Note: To cancel push ‘Down’ key. 
 
 

7 Function of the ‘Error’ Display 

If an abnormality is detected by the ITV the LED display will show ‘Er’ 
followed by a code number. Isolate the power supply and ascertain the 
problem and solve. Re-instate power supply after correcting fault. Error 
codes are as shown in the table below. 
 

No 

 

Content

Display

Input signal is outside specification 

Er 1 

EEProm read/write error 

Er 2 

Memory read/write error 

Er 3 

Solenoid valve fault 

Er 4 

Table 2. 

 

8 Reset Function 

• Push ‘Up’ and ‘Down’ keys (Fig 6) together for longer than 3 seconds. 
• Display shows ‘RES’. 
• Release keys to reset minimum pressure and maximum pressure. 
 
 
 
 
 

9 Installation & Maintenance 

 

• If the electrical supply fails, settings are ‘held’ for a short period. 
• If the air pressure fails with power ‘on’ the solenoid will ‘flutter’. Turn off 

the power. 

• This product is pre-set at the factory and must not be dismantled by the 

user. Contact your local SMC office for advice. 

• Ensure, when installing this product, that it is kept clear of power lines to 

avoid noise interference. 

• Ensure that load surge protection is fitted when inductive loads are 

present (i.e. solenoid, relay etc.). 

• Ensure precautions are in place if the product is used in a ‘free flow 

output ’condition. Air will continue to flow continuously. 

• Do not use a lubricator on the input side of this product. If lubrication is 

necessary, place the lubricator on the ‘output’ side. 

• Ensure all air is exhausted from the product before maintenance. 
• Length of connector cable shall be 10 m maximum. 
 
 

10 Contacts 

AUSTRIA 

(43) 2262 62280  

NETHERLANDS 

(31) 20 531 8888 

BELGIUM 

(32) 3 355 1464  

NORWAY 

(47) 67 12 90 20 

CZECH REP. 

(420) 541 424 611  

POLAND 

(48) 22 211 9600 

DENMARK 

(45) 7025 2900  

PORTUGAL 

(351) 21 471 1880

FINLAND 

(358) 207 513513  

SLOVAKIA 

(421) 2 444 56725 

FRANCE 

(33) 1 6476 1000  

SLOVENIA 

(386) 73 885 412

GERMANY 

(49) 6103 4020  

SPAIN 

(34) 945 184 100 

GREECE 

(30) 210 271 7265  

SWEDEN 

(46) 8 603 1200 

HUNGARY 

(36) 23 511 390  

SWITZERLAND 

(41) 52 396 3131 

IRELAND 

(353) 1 403 9000  

UNITED KINGDOM 

(44) 1908 563888 

ITALY 

(39) 02 92711  

 

 

URL : 

http// www.smcworld.com (Global)      http// www.smceu.com (Europe)

 

Specifications are subject to change without prior notice from the manufacturer.  

© 

2009

 SMC Corporation All Rights Reserved. 

unit

White

Black

Brown

 

Blue 
 
White 
 
Black

Electrical connector

Down key 

Up key 

OUT

Pilot valve 

SUP

EXH 

Control 
circuit 

Pressure 
sensor 

Supply solenoid 
valve 

Exhaust solenoid 
valve 

Power supply 

Input signal 

Pilot EXH 

Pressure 
display 

Set key 

LED display 

Gauge port

Air supply 
port 

Air out port

Supply pressure

f

 Pressure sens r 

o

g

 Control circuit 

c

  upply solenoid valve 

S

d

  xhaust solenoid valve

E

OUT

e

 Pilot valve

Input 
signal 

– 

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