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NI PXI-7340

Technical Specifications

  1. Control Axes:
    • Supports 1–4 axes of simultaneous coordinated motion control .
    • Configurable for servo or stepper motors per axis .
  2. Control Modes:
    • Position, velocity, and force/pressure control .
    • Closed-loop (with feedback) or open-loop (stepper-only) operation .
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Detailed content

  1. Feedback Interfaces:
    • Quadrature encoders (incremental/absolute) with Phase A/B/Index inputs .
    • Analog sensors (e.g., displacement, pressure) via 8 multiplexed ADC channels (12-bit resolution) .
  2. Motion I/O Connector:
    • 68-pin VHDCI connector for axis signals (limits, home switches, analog outputs) .
    • Digital I/O: 32-bit programmable pins, breakpoint outputs (64 mA sink current) .
  3. Real-Time Performance:
    • Trajectory update rate: 62.5–500 µs/sample (max 4-axis sync at 250 µs) .
    • PID loop update rate: 62.5 µs .
  4. Processor Architecture:
    • Dual-processor design: 32-bit CPU + DSP + custom FPGAs .
    • Preemptive multitasking real-time OS for deterministic control .
  5. Communication Protocols:
    • RTSI bus (8 triggers) for synchronizing DAQ/IMAQ/motion devices .
    • PXI backplane integration (PXI-7340) or ribbon cable (PCI-7340) .
  6. Electrical/Mechanical:
    • Power: 24 V DC ±10% (5.7 W consumption) .
    • Operating temp: 0°C to +50°C; IP20 protection (standard) .
    • Dimensions: 16 × 10 cm

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