NI PXI-7344 Motion Control Module

Multi-Axis Synchronous Control: Supports 4-axis independent or coordinated motion control, compatible with various motor types (e.g., DC servo, AC servo, stepper motors), suitable for complex trajectory planning scenarios.

High-Speed Real-Time Control: Built-in motion processor supporting microsecond-level instruction response, enabling advanced motion modes such as linear interpolation, circular interpolation, and spline curves.

Flexible Triggering and Feedback: Integrated encoder interfaces, limit switch inputs, and analog feedback channels, supporting hardware-triggered interrupts to ensure real-time performance and safety in motion control.

Open Programming Interface: Compatible with NI-Motion drivers and development platforms such as LabVIEW and C++, supporting custom motion algorithms and system integration.

Scenario: Precision positioning for wafer probe stations, requiring 4-axis synchronous control to achieve nanometer-level movement accuracy.

Implementation: Utilize the circular interpolation function of the NI PXI-7344 to control X/Y-axis translation and θ-axis rotation, combined with Z-axis height adjustment, to drive the probe tip along the wafer surface trajectory with positioning error <1 μm.

Scenario: Lamination process for smartphone screens and frames, requiring multi-axis coordinated motion for high-speed pick-and-place and precise alignment.

Implementation: Employ S-curve acceleration/deceleration mode to control robotic arm movement, provide real-time position feedback via encoders, and integrate with vision systems (e.g., NI PXI-1430 image acquisition card) for closed-loop correction, achieving lamination efficiency >200 cycles/minute.

Scenario: Laser cutting path control for metal sheets, requiring real-time generation of complex curved trajectories.

Implementation: Precompute cutting paths using spline curve interpolation, drive servo motors with 8 MHz high-speed pulse output, and synchronize laser switching via hardware triggers to achieve cutting speeds >1000 mm/s with edge roughness <50 μm.

NI-Motion Driver: Provides API functions for axis configuration, trajectory planning, and real-time status monitoring, compatible with development environments such as LabVIEW, Python, and C#.

LabVIEW Motion Control Module: Graphical programming interface supporting drag-and-drop motion process design, with built-in interpolation algorithm libraries and oscilloscope tools (real-time monitoring of position/velocity curves).

NI SoftMotion: Software motion controller suitable for complex multi-axis systems, supporting advanced functions such as electronic cams and virtual axes.

Servo Drives: Pair with NI PXI-4135 power supply module and third-party drives (e.g., Yaskawa, Mitsubishi), supporting analog (±10 V) or pulse (8 MHz) control modes.

Feedback Systems: Use high-precision linear encoders (e.g., Renishaw) or rotary encoders connected via the NI PXI-7344's differential interface to enhance position feedback accuracy.

Multi-Module Synchronization: Collaborate with the NI PXI-6683 timing module to synchronize multiple PXI-7344 modules via a 10 MHz clock, enabling coordinated motion for 8+ axes (e.g., multi-robot collaboration).

Real-Time Optimization: Deploy motion control programs using NI RT (Real-Time Operating System) to reduce system response latency (typical <100 μs).

Anti-Interference Design: Use shielded twisted-pair cables for encoder signals and separate routing for analog outputs and digital signals to avoid EMI affecting position feedback accuracy.