SMC Networks ITV2000 series Instrucciones de funcionamiento

Microprocessor-Controlled Electro-Pneumatic Regulator ITV2000

EASY PROGRAMMING GUIDE

Page 1

last updated 11/03/03 10:05 AM

MICROPROCESSOR-CONTROLLED

E-P REGULATOR

ITV2000 CONTENTS:

1. LAYOUT IDENTIFICATION

2. WIRING

3. INPUT SIGNAL

4. KEY LOCKFUNCTION

5. SET POINT PROGRAMMING

6. ADJUSTING MINIMUM &

MAXIMUM PRESSURES

7. MONITOR OUTPUT

8. ERRORMESSAGES

9. SPECIFICATIONS

Microprocessor-Controlled Electro-Pneumatic Regulator ITV2000

EASY PROGRAMMING GUIDE

Page 2

last updated 11/03/03 10:05 AM

LAYOUT IDENTIFICATION

WIRING

Please be careful when connecting the four cable wires. Improper wiring will damage the

internal circuitry.

PIN # WIRE COLOR DESCRIPTION

1Brown Supply Voltage

2White Input Signal

3Blue Ground

4Black Monitor Output

Microprocessor-Controlled Electro-Pneumatic Regulator ITV2000

EASY PROGRAMMING GUIDE

Page 3

last updated 11/03/03 10:05 AM

INPUT SIGNAL

•CURRENT SIGNAL TYPES (ITV20-0, ITV20-1)

Supply Voltage VS Input Signal A

24VDC (ITV200)

12VDC (ITV201)

4~20mA (ITV20-0)

0~20mA (ITV20-1)

•VOLTAGE SIGNAL TYPES (ITV20-2, ITV20-3)

Supply Voltage VS Input Signal VIN

24VDC (ITV200)

12VDC (ITV201)

0~5VDC (ITV20-2)

0~10VDC (ITV20-3)

KEYLOCK FEATURE

locked unlocked

The ITV has a key lock feature, allowing the user to disable the setting keys. This

is helpful in preventing unauthorized setting changes. By default, the keys are locked

when power is turned on. The keys must be unlocked to modify the setting information.

The display will show LOC if a key is pressed while the keys are locked.

TO UNLOCK:

¬ Press and hold the down key for 2 seconds or longer. The display will blink LOC.

Press the set key to unlock the keys, or

®Press the up key to cancel.

TO LOCK:

¬ Press and hold the up key for 2 seconds or longer. The display will blink UNL.

Press the set key to lock the keys, or

®Press the down key to cancel.

Microprocessor-Controlled Electro-Pneumatic Regulator ITV2000

EASY PROGRAMMING GUIDE

Page 4

last updated 11/03/03 10:05 AM

PROGRAMMING THE SET-POINTS

3CAUTION:When setting the minimum pressure and maximum pressure values, the new values take

effect as soon as the SET key is pressed. Use caution to avoid damage or injury.

1. UNLOCK THE KEYPAD

•Press and hold the down key for 2 seconds or longer. The display will blink LOC.

•Press the set key to unlock the keys.

•Press the SET key to continue to the next step.

2. SET THE MINIMUM PRESSURE (F_1)

•Press the UP and DOWN keys until the display shows the desired minimum pressure.

•Press and release the SET key to continue to the next step.

3. SET THE MAXIMUM PRESSURE (F_2)

•Press the UP and DOWN keys until the display shows the desired maximum

pressure.

•Press and release the SET key to continue to the next step.

4. SET THE MONITOR PRESSURE (P_1)

•Press the UP and DOWN keys until the display shows the desired monitor pressure.

•Press and release the SET key to continue to the next step.

5. SET THE MONITOR PRESSURE (P_2)

•Press the UP and DOWN keys until the display shows the desired monitor pressure.

•Press and release the SET key to finish the setup.

•The display returns to the current pressure.

Microprocessor-Controlled Electro-Pneumatic Regulator ITV2000

EASY PROGRAMMING GUIDE

Page 5

last updated 11/03/03 10:05 AM

ADJUSTING THE MINIMUM AND MAXIMUM PRESSURES

The ITV allows the user to customize the minimum pressure (zero point) at 0% input

signal and the maximum pressure (span) at 100% input signal. The minimum pressure can be set

as low as 0% and as high as 50% of the full span. The maximum pressure can be set as low as

10% and as high as 100% of the full span.

For example, an ITV203 could be set to output 35 PSI at 0% input signal, and 43 PSI at

100% input signal (there must be at least 8 PSI separation). Similarly, the same ITV203 could be

set to output 0 PSI at 0% input signal, and 8 PSI at 100% input signal.

minimum pressure (zero) adjust maximum pressure (span) adjust

MONITOR OUTPUT

The ITV is available with one of three different monitor output signals:

•ANALOG (ITV20-1): Linear analog pressure monitor signal (1~5VDC).Input impedance:

100KΩor greater

•NPN DIGITAL (ITV20-2): NPN open-collector output. Maximum load current: 30mA

•PNP DIGITAL (ITV20-3): PNP open-collector output. Maximum load current: 30mA

The NPN and PNP digital monitor outputs can be set to function in one of three different ways:

comparator mode hysteresis mode self-diagnostic mode

when P1<P2 when P1>=P2 when P1=P2=0

•The output is on whenever

the outlet pressure is

greater than P1 but less

than P2.

•The output comes on once

the outlet pressure

reaches P1. The output

will remain on until the

outlet pressure drops to

P2.

•The output is on whenever

the outlet pressure equals

the commanded pressure.

The output is off whenever

the input signal changes.

ERROR MESSAGES

Microprocessor-Controlled Electro-Pneumatic Regulator ITV2000

EASY PROGRAMMING GUIDE

Page 6

last updated 11/03/03 10:05 AM

ERROR # DESCRIPTION LED DISPLAY

1Input signal exceeds the input signal range ER1

2EPROM read/write error ER2

3Memory read/write error ER3

4Internal solenoid valve malfunction ER3

0Other ER0

*Simultaneously press and hold the UP and DOWN keys for 3 seconds or longer to reset.

SPECIFICATIONS

Supply Pressure [set pressure + 14.5psi] to 145psi1

Output Pressure 0.725~14.5psi (ITV201)

0.725~72.5psi (ITV203)

0.725~130.5psi (ITV205)

Maximum Flow 52.5 SCFM

Supply Voltage 24VDC±10% (ITV200)

12VDC±10% (ITV201)

Input Signal 4~20mADC (ITV20-0)

0~20mADC (ITV20-1)

0~5VDC (ITV20-2)

0~10VDC (ITV20-3)

Input Impedance 250Ωor less (ITV20-0 & -1)

approx. 6.5KΩ(ITV20-2 & -3)

Linearity ±1% FS

Hysteresis 0.5% FS

Repeatability ±0.5% FS

Monitor Output 1~5VDC analog

transistor (NPN, PNP), max. 30mA

1Except ITV201, which is 29PSI.

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MicroMist

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O 1978-1999SMCPneumatics,

Inc.AllRightsReserved.

RevisedOctober

1999

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