II. Model Interpretation

PXI: PCI eXtensions for Instrumentation, compatible with PXI/PXIe hybrid slots.

2514: 2500 series (fault insertion / signal switch), 14 represents 7 channels, 28 V/40 A, high-power FET type.

Part Number: 778572-14 (PXI); 780587-14 (PXIe).

Status: Out of production (NRND), recommended replacement model PXIe-2514.

III. Technical Parameters

Channel Configuration:

Feedthrough Channels: 7 (each channel is independently controlled)

Fault Bus: 2 (can be programmed as ground, battery, power supply)

Topology: Each channel supports four states: "direct / disconnected / shorted to bus 1 / bus 2"

Electrical Characteristics:

Maximum Switching Voltage: 28 VDC

Maximum Continuous Current: 40 A (per channel)

Maximum Pulse Current: 200 A (1100 μs)

On-Resistance: 5.5 mΩ (typical) / ≤ 10 mΩ (maximum)

Relay Type: Solid-state FET (no mechanical contacts)

Protection: Overcurrent (typical 41 A), overtemperature, short-circuit protection

Dynamic Performance:

Bandwidth: >800 kHz (50 Ω system)

Switching Time: ≤10 μs

Relay Life: Infinite (solid-state without wear)

Physical and Environmental:

Size: 3U PXI (100 mm × 160 mm)

Weight: Approximately 0.35 kg

Operating Temperature: 0–55 °C; Storage: −40–70 °C

Humidity: 10%–90% RH (no condensation)

IV. Interface and Communication Configuration

Host Interface: PXI hybrid bus (compatible with PXIe/PXI), supports hot plugging, plug-and-play.

Signal Interface: 78-pin D-Sub female connector (front panel), equipped with dedicated terminal blocks / cables for connecting DUT to fault bus.

Trigger and Synchronization:

PXI Trigger Cable: 70 ns resolution, supports multi-module synchronization

Hardware Trigger: Front panel trigger input / output, compatible with HIL real-time timing

Driver Software: Compatible with NI-SWITCH, LabVIEW Real-Time, NI VeriStand, TestStand, C/C++/Python API.

V. Core Functions

Ultra-high Power Fault Injection: 28 V/40 A continuous / 200 A pulse, covers 12/24 V automotive, 28 V aerospace high-power load fault simulation.

Solid-state High Reliability and High Speed: FET without contacts design, infinite life, 10 μs level switching, low on-resistance, suitable for long-term automated HIL testing.

Multi-fault Programmable: 7 channels independent control, simulates open circuit, ground / power short circuit, pin-to-pin short circuit, covers mainstream electrical fault scenarios.

Dual Fault Bus Flexible Configuration: 2 programmable fault buses, can be mapped to ground, battery positive/negative, reference voltage, achieving complex fault combinations.

HIL Real-time Integration: Combined with LabVIEW Real-Time/VeriStand, supports microsecond-level timing control, suitable for ECU/FADEC real-time system testing.

VI. Application Scenarios

Automotive Electronic HIL Testing: Engine ECU, BMS, high-power body controller, high-voltage components of new energy vehicles fault injection verification.

Aerospace Testing: FADEC, flight control system, aerospace high-power electronic equipment short-circuit / open-circuit fault simulation and reliability testing. Industrial control and high-power equipment: Verification of fault protection mechanisms for high-power PLCs, motion controllers, power modules, and battery management systems.

Railway transportation and heavy equipment: On-board control units, electrical fault tolerance tests for traction systems.

VII. Installation and Maintenance Instructions

Installation and Wiring:

Modules: Unplug and power off for insertion, insert into PXI/PXIe hybrid slots, tighten the fixing screws.

Wiring: Connect the 78-pin interface to the DUT and the fault bus according to channel definitions. Do not exceed 28 V or 40 A continuous current.

Grounding: Secure the chassis to the system ground, independently ground the fault bus to reduce interference.

Software Configuration:

Install NI-SWITCH and VeriStand drivers, NI-MAX recognizes the module, configure the fault bus mapping.

Programming: Call the switch VI in LabVIEW Real-Time, or configure the real-time fault sequence through VeriStand.

Daily Maintenance:

Cleaning: Wipe the panel with a soft cloth after power off, avoid liquid entering the 78-pin interface.

Environment: Operating temperature 0–55 °C, avoid dust, moisture, and strong electromagnetic interference from NI.

Protection Mechanism: Avoid overvoltage (>28 V), overcurrent (>40 A continuous), utilize built-in overcurrent/overtemperature protection.

Static Protection: Wear an anti-static wristband when plugging and unplugging the module, ensure good grounding of the chassis.