# SMART DUAL LVDT INPUT

## Fits Tiger 320 Series

Crystal Control.

50/60 Hz

line frequency rejection.

Sine Wave Generator.

16 programmable excitation

frequencies. 3V RMS.

Dual Setpoint Outputs.

Open-collector NPN outputs.

+24V excitation.

11-pin Input Connector.

Dual LVDT inputs.

Dual setpoint inputs.

Cable shielding.

On-board Digital Signal

Processor.

Controls ATD sampling speed, excitation frequency and

setpoint outputs.

State-of-the-art Electromagnetic Noise

Suppression Circuitry.

Ensures signal integrity even in harsh EMC environments.

Synchronous Demodulation.

>130db attenuation of

excitation frequency.

Interface to Tiger Meter.

Ultra Low-noise 16-bit Dual Channel ATD.

Approaching 19-bit performance with additional software filtering.

A high performance dual channel LVDT input module.

A dual LVDT signal conditioning input module interfaced to the Tiger 320 Series Operating System provides programmable excitation frequency, ATD sampling and averaging rate, and high-speed setpoint outputs.

Synchronous demodulation at multiples of line frequency ensures high frequency response applications unhindered by carrier noise.

Input Module

Order Code Suffix

Excitation Voltage

Excitation Frequency

Temperature Coefficient

Dual LVDT Inputs

Hardware Module Specifications

3 V RMS sine wave, Zero DC component THD < 2% (1.2 kHz). x 16 available (1.2 kHz to 11.52 kHz) as multiples of 50/60 Hz line frequency.

Crystal locked, software driven. 50 ppm /C full scale (typical).

30 k input impedance.

Synchronous demodulation of excitation carrier. > 130 dB rejection of excitation carrier.

500 Hz (3 dB) low-pass filter.

Dual channel A/D convertor approaching 19-bit resolution. Ratiometric operation relative to excitation voltage magnitude.

High-speed Control Outputs Dual high speed open collector transistor outputs 600 mA max. under setpoint control (SP5 / SP6).

Frequency Response

Analog to Digital

Dual Output Rates

Single Fast Output

Software Module Specifications

Rapid & average response outputs.

1 Hz, 4 Hz, 10 Hz, 20 Hz, averaged.

Single channel, increased signal to noise.

4 Hz, 10 Hz, 20 Hz, 40 Hz, averaged.

16 selectable frequencies.

50 / 60 Hz noise rejection.

high speed setpoints.

ISL1-2 Data Sheet (NZ360)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 1

### Programming Quick Start Guide

### Connector Pinouts

ISL1 / ISL2 configured for dual input LVDTs.

Fast setpoint control outputs activ ate a status LED (SP5) and a +24 V relay coil (SP6).

Figure 1 ISL1 / ISL2 Configured f or Dual LVDT Inputs

### Technical Description

The output to the primary coil of both LVDTs is a

3 V RMS sine w ave. The received LVDT signals are synchronously demodulated and filtered to remove the carrier frequency. The 16-bit A/D convertor has over 130 dB noise rejection at the excitation frequencies and is capab le of 40 Hz averaged output on 45 samples.

Two open collector NPN tr ansistors are a vailable as high-speed controlled outputs. Tiger controller setpoint SP5 controls output CONTROL 1 and SP6 and controls output CONTROL 2.

Figure 2 ISL1 / ISL2 LVDT Functional Schematic

Page 2

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

ISL1-2 Data Sheet (NZ360)

### Smart Setup Registers

The Tiger meter uses three smart setup registers to configure all smart input modules. ISL1 / ISL2 requires only smart register 1 (SMT1) and smart register 2 (SMT2) to be configured. See Figure 3.

SMT1 configures both LVDT1 and LVDT2 input signals for line frequency, excitation frequency, and output rate. SMT2 allows LVDT1 and LVDT2 to be selected as a high-speed setpoint outputs, CONTROL 1 from setpoint 5 and CONTROL 2 from setpoint 6.

ISL1 / ISL2 produces the f ollowing four output registers:

The averaged response signal output from LVDT 1.

The averaged response signal output from LVDT 2.

The rapid response signal output from LVDT 1.

One of these registers can be tr ansferred to Channel 1 (CH1) via Code 2, the same or another register to CH2 via Code 4, the same or another register to CH3 via Code 5, and the same or another register to CH4 via Code 6,

LVDT 1 Input Signal

LVDT 2 Input Signal

Figure 3 ISL1 / ISL2 Smar t Setup Registers Operational Flow Diagram

### Programming Procedures

The following programming procedures cover all the steps required to configure smart input module ISL1 / ISL2. Steps 1 to 6 describe ho w to select the line frequenc y, excitation frequenc y, and output rate through SMT1. Steps 7 to 12 describe how to select the control output mode, control 1 and control 2 source through SMT2.

Steps 13 to 18 describe how to select the output registers f or channels 1, 2, 3, or 4 as required.

Press the

and

buttons at the same time to enter the main programming mode.

Press the

button three times to enter Code 2. Set Code 2 to [X77].

This setting enters the smart register 1 code setup menu.

Note the output registers in the 3rd digit are specific to the ISL1 / ISL2 input module. These registers vary for each different smart input module.

ISL1-2 Data Sheet (NZ360)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 3

Press the

button.

This menu provides settings unique to smart register 1 of input module ISL1.

Using the

buttons, select:

1st Digit: 50 Hz line frequenc y rejection for 50 Hz po wer supply areas, or 60 Hz line frequenc y

rejection for 60 Hz power supply areas.

2nd Digit: The excitation frequency.

3rd Digit: The output rate.

5 Press the

button. The display returns to [Cod_2] [X77].

6 Using the

button, reset the 3rd digit to z ero [X70] to leave the smart register 1 menu.

Note, leaving the 3rd digit as 7 means the displa y constantly cycles between [Cod_2] and [SMt1].

Press the

button three times to enter Code 5. Set Code 5 to [X77].

* Single fast LVDT 1 (LVDT

2 is disabled) (improved signal-tonoise).

Note, the output registers in the 3rd digit are specific to the ISL1 / ISL2 input module. These registers vary for each different smart input module.

Press the

button.

This setting enters the smart register 2 code setup men u. This men u configures the tw o high-speed setpoint outputs.

This menu provides settings unique to smart register 2 of input module ISL1.

9 Select the following control output settings:

1st Digit: Control output mode for the open-collector transistors.

2nd Digit: Control output source for CONTROL 2 (SP6).

3rd Digit: Control output source for CONTROL 1 (SP5).

Page 4

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ISL1-2 Data Sheet (NZ360)

10 Press the

button to save the settings. The display returns to [Cod_5] [X77].

11 Using the

button, reset the 3rd digit to z ero [X70] to leave the smart register 1 menu.

Note, leaving the 3rd digit as 7 means the displa y constantly cycles between [Cod_5] and [SMt2].

Press the

and

buttons at the same time to retur n to the operational display.

## Select a Channel

Select the output register for the required channels

Press the

and

buttons at the same time again to re-enter the main prog ramming mode,

then press the

button three times to enter Code 2.

Set Code 2 to [X7X]. Select the required processing rate for CH1 in the 1st digit and the required register map settings in the 3rd digit.

## CH1

Note the output register map is different for each smart input module type.

Set Code 4 to [0X0]. Select the required register map settings f or CH2 in the 2nd digit.

## CH2

If required enter Code 5 and select the required register map settings for CH3 in the 3rd digit.

## CH3

If required enter Code 6 and select the required register map settings for CH4 in the 3rd digit.

Note the output register map is different for each smart input module type.

### CH4

Press the

button to save the settings.

Press the

time to return to the operational display.

buttons at the same

and

ISL1-2 Data Sheet (NZ360)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 5

### Application Examples

LVDT sensors can be applied to almost all engineer ing applications from civil, mechanical, petrochemical, and power generation, to production, aerospace, defense, and much more.

They can be used on production lines to automatically gauge products for quality control and product sorting. In the power generation and petrochemical industries they can be used, for example, as servo position feedback on actuated equipment such as valves and dampers, or for measuring turbine casing expansion.

Submersible units can be used in mar ine and offshore mining applications, and sensors that meet militar y environmental standards have been applied to defense and aerospace applications.

Dual LVDT smart input module ISL1 / ISL2 is the ideal interf ace between LVDT sensors and the unr ivaled control functionality of the Tiger 320 Ser ies operating system. This combination is ideal f or multi-dimensional linear displacement measurement applications. Programmable excitation v oltage, ultr a-low noise high speed signal processing, and dual control outputs are standard f eatures of this input module.

The following are example applications that show the versatility of the LVDT200 controller.

Example Setup Procedure

An LVDT transducer is fitted to the shak er head of a vibration tester to measure dynamic displacement versus time. The shaker head vibrates at approximately 100 Hz frequency and a 3 mm peak to peak amplitude.

The excitation frequency is set at 2.4 kHz, 24 times g reater than the mechanical vibration frequency, and a 50 Hz line frequency rejection (suitab le for 50 Hz power supply areas). A single channel fast option with a 40 Hz average and a 1600 Hz sampling speed is selected. If this averaged result exceeds 3.500 mm then CONTROL 1 is activated and a buzzer sounds.

1 Set up smart register 1 (SMT1) for 50 Hz line rejection, 2.4 kHz excitation frequency,

and a 40 Hz averaged output rate:

then press the

button.

Display toggles between

Set

2 Select LVDT 1 average output for CH1:

reset to

then press the

button.

Set up smart register 2 (SMT2) to activ ate CONTROL 1 output (SP5) on the LVDT 1 averaged signal:

then press the

button.

Display toggles between

Set

Page 6

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ISL1-2 Data Sheet (NZ360)

Figure 4 Example LVDT Application

ALIGNMENT TOOL

Measured using two LVDT sensors at 90

Signal 1 to CH1 = Sho wn on Display

Signal 2 to CH2 = Use View Mode to view CH2

Signal 1

Signal 2

Operational Display (CH1)

CH2 View Mode

SLOPE INDEXING

Measured using two parallel LVDT sensors (1 2)

Signal 1 minus Signal 2 = Displayed Result

Note:

Select [rESLt] as the data source f or the display in Code 1 of the main prog ramming mode.

Signal 1

Signal 2

Operational Display

showing result of

signal 1 signal 2

THICKNESS MONITORING

Measured using two opposed LVDT sensors (1 + 2)

Signal 1 plus Signal 2 = Displa yed Result

Note:

Select [rESLt] as the data source f or the displa y in Code 1 of the main prog ramming mode.

Signal 1

Signal 2

Operational Display

showing result of

signal 1 + signal 2

ISL1-2 Data Sheet (NZ360)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 7

### Note:

### The ISL1 / ISL2 dual LVDT smart input module is the

### standard input module f or Texmates LVDT200 dual

### input LVDT controller, but can be used in an y Tiger

### 320 Series controller.

### Customer Configuration Settings:

1st Digit

2nd Digit 3rd Digit

1st Digit

2nd Digit 3rd Digit

1st Digit

2nd Digit 3rd Digit

## CH1

## CH2

## CH3

## CH4

1st Digit

2nd Digit 3rd Digit

1st Digit

2nd Digit 3rd Digit

1st Digit

2nd Digit 3rd Digit

For product details visit www.texmate.com

Tel: 1-760-598-9899 USA 1-800-839-6283 Thats 1-800-TEXMATE

Page 8

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

ISL1-2 Data Sheet (NZ360)

### About TexMate

Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.