The National Instruments SCXI-1315, part number 186963A-01, is an LVDT terminal block designed for use with the SCXI-1540 module. It provides the connection point for linear variable differential transformer sensors and routes signals to the SCXI-1540 signal conditioning module. The terminal block is used in position measurement, displacement monitoring, and industrial test systems that use LVDT sensors.

LVDT sensors are used to measure linear displacement with high accuracy and repeatability. The sensors require excitation and signal conditioning, which the SCXI-1540 module provides. The SCXI-1315 terminal block provides the physical connection and signal routing between the sensors and the module.

Terminal Block Function

The terminal block mounts on the front of the SCXI-1540 module and provides screw terminals or connector points for sensor wiring. Engineers should verify the terminal assignments and wiring configuration for each LVDT channel.

LVDT sensors typically have multiple windings that require correct excitation and signal connections. Incorrect wiring can result in no output or inaccurate measurement. Documentation of channel assignments and sensor types helps repeatability.

SCXI-1540 Integration

The SCXI-1315 is designed to work specifically with the SCXI-1540 module. The module provides excitation and demodulation for LVDT sensors. The terminal block routes the sensor signals to the module inputs.

Engineers should verify that the terminal block is compatible with the module revision and that the module is configured for the sensor type. Calibration of the module and sensor combination should be performed as part of commissioning.

Signal Quality and Wiring

LVDT signals are low level and sensitive to noise. Shielded cable and proper grounding help maintain measurement quality. Sensor cables should be routed away from high current conductors and switching equipment.

Terminal connections should be secure and labeled by channel. Where sensors are located at a distance, cable length and shielding should be reviewed against the sensor specifications.

Applications

The SCXI-1315 is suited to position measurement, displacement monitoring, structural testing, and industrial automation. It supports LVDT sensor connection in an SCXI system.

Installation and Maintenance

Installation requires mounting the terminal block on the SCXI-1540 module and connecting sensor wiring according to the documentation. Wiring should be labeled and secured. The chassis should provide adequate cooling and protection.

Maintenance includes checking terminals, verifying sensor operation, and confirming calibration. Documentation of channel assignments helps troubleshooting.

Summary

The National Instruments SCXI-1315 LVDT Terminal Block provides connection and signal routing for LVDT sensors in SCXI systems using the SCXI-1540 module. It supports position and displacement measurement in industrial and laboratory applications. The SCXI-1315 is a practical accessory for engineers who need reliable LVDT sensor connection.