DEWESOFT DSI - LVDT Technical Reference Manual Download

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2.2

Output connector pinout

DSUB 9 connector

9 pin

DSUB receptable

Pin Name I/O

Description

Exc+

O, Power

Sensor supply, exci

In+

I, Signal

Sensor

Sns-

I, Signal

Sense -

AGND I

Analog Ground

Reser. I/O

Reserved / Not Connected

Sns+

I, Signal

Sense +

In-

I, Signal

Sensor Output -

Exc-

O, Power

Sensor supply, excitation -

Reser. I/O

Reserved / Not Connected

LEMO 2B.308 connector

Lemo

8-pin receptable

Pin Name

I/O

Description

Exc+

O, Power

Sensor supply, exci

In-

I, Signal

Sensor Output -

In+

I, Signal

Sensor

Exc-

O, Power

Sensor supply, excitation -

MGND I

Mechanical Ground, chassis

Reser. I/O, Signal

Reserved / Not Connected

AGND

Analog Ground

Reser. I/O

Reserved / Not Connected

Summary of Contents for DSI - LVDT

Page 1: ...DSI LVDT Technical Reference Manual Version 2 1 Date 19 04 2019 DEWESoft d o o Gabrsko 11a 1420 Trbovlje Slovenia www dewesoft com support dewesoft com ...

Page 2: ...tions 1 1 1 1 Output bandwidth Magnitude and Phase response 2 1 2 Theory of operation 4 2 CONNECTORS 6 2 1 Input connector pinout 6 2 2 Output connector pinout 7 3 OPERATION 8 3 1 Connections 8 4 DSI ADAPTERS TEDS SENSOR SUPPORT 9 4 1 Manual operation 10 5 DOCUMENTATION VERSION 11 TABLE OF FIGURES I ...

Page 3: ...of Full Scale Sensor VTR S x d Sensitivity 2000mV V maximum Sensor supported type Differential LVDR or RVDT Inductive Half Bridge LVDT Sensor Exc voltage 2 88Vrms differential 3 Sensor Exc frequency Selectable 4 02kHz 9 60kHz typical 2 5 error Phase compensation 50 to 85 at 4kHz 75 to 70 at 10kHz TEDS 1024 Bit 1 Wire EEPROM 4 Electrical specifications 1 Absolute maximum rating specified for SIRIUS...

Page 4: ...se Typical magnitude response for 4kHz EXC Typical phase response for 4kHz EXC 14 12 10 8 6 4 2 0 2 1 10 100 1000 Magnitude dB Frequency Hz Magnitude response 4kHz EXC 1 2000 Hz 20 0 20 40 60 80 100 120 140 1 10 100 1000 Phase Frequency Hz Phase response 4kHz EXC 1 2000 Hz ...

Page 5: ...e for 10kHz EXC Typical phase response for 10kHz EXC 14 12 10 8 6 4 2 0 2 1 10 100 1000 Magnitude dB Frequency Hz Magnitude response 10kHz EXC 1 2000 Hz 20 0 20 40 60 80 100 120 140 1 10 100 1000 Phase Frequency Hz Phase response 10kHz EXC 1 2000 Hz ...

Page 6: ...acing The benefits of this new circuit are minimal adjustments are required temperature stability is improved and transducer interchangeability is improved Functional block diagram LVDT adapter SENSE inputs are connected as B Inputs and adapters IN are connected as A Inputs Phase Lead Lag circuit will compensate difference of the sensor output in reference to Exc and Sense inputs PHASE LEAD LAG 1 ...

Page 7: ...are shown for sensor with sensitivity 0 5 Output signal level is 1 2 of the Exc Signal Sensor output phase lag is 45 LVDT adapter output is 0 35 1Vexc sensitivity 0 70 according to Figure 2 When phase compensation matches phase lead lag of sensor output LVDT adapter output will be at its maximum 0 5 1Vexc sensitivity 1 00 Example 45 sensor output no compensation Example 45 sensor output 45 compens...

Page 8: ... O Reserved Not Connected 6 PSEn I Signal Power Supply Enable 7 Out O Signal Adapter Output Ground 8 PS I Power Power Supply 9 TEDS I O Signal TEDS LEMO 2B 308 connector Lemo 8 pin plug Pin Name I O Description 1 PS I Power Power Supply 2 Out O Signal Adapter Output Ground 3 Out O Signal Adapter Output Single ended 4 PS I Power Power Supply 5 MGND I Mechanical Ground chassis 6 TEDS I O Signal TEDS...

Page 9: ... 6 Sns I Signal Sense 7 In I Signal Sensor Output 8 Exc O Power Sensor supply excitation 9 Reser I O Reserved Not Connected LEMO 2B 308 connector Lemo 8 pin receptable Pin Name I O Description 1 Exc O Power Sensor supply excitation 2 In I Signal Sensor Output 3 In I Signal Sensor Output 4 Exc O Power Sensor supply excitation 5 MGND I Mechanical Ground chassis 6 Reser I O Signal Reserved Not Connec...

Page 10: ...3 1 Connections LVDT Differential Half Bridge LVDT 6 wire connection only shown 4 wire also possible connect Sns and Exc signals on adapter side of connector Input pin7 shall be connected to half bridge completion resistor divider assembled with discrete resistors with the following recommended specifications Resistance 1kΩ Tolerance 0 1 Temperature coefficient 15ppm Power 0 125W This connection i...

Page 11: ...f DSI adapters TEDS sensors under Hardware setup is selected adapter will be recognised and proper EXC Voltage will be set automatically Please check if you are using the latest software where LVDT Adapter is supported Options Settings DSI adapters TEDS sensors checkbox DSI LVDT adapter is recognized and set automatically ...

Page 12: ...unchechked under Hardware setup then sensor supply and range has to be set manualy DSI adapters TEDS sensors checkbox is left unchecked Under Channel setup for channel N set Excitation voltage from 10V to 15V maximum according to Electrical Specifications Excitation voltage setting ...

Page 13: ...sion Date dd mm yyyy Notes 1 0 20 01 2016 Initial version 2 0 20 11 2017 Change General document template MSI LVDT to DSI LVDT LVDT adapter signals 2 1 19 04 2019 Add Output bandwidth Magnitude and Phase response Change 3 1 Connections HB divider resistors ...

Page 14: ...hase lead lag 1 1 sensor 5 Example 45 sensor output no compensation 5 Example 45 sensor output 45 compensation 5 9 pin DSUB plug 6 Lemo 8 pin plug 6 9 pin DSUB receptable 7 Lemo 8 pin receptable 7 Adapter setting frequency phase 8 Solder side of the DB9 male HB divider resistors 8 Options Settings 9 DSI adapters TEDS sensors checkbox 9 DSI LVDT adapter is recognized and set automatically 9 DSI ada...

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