National Instruments PCI-7314

The National Instruments PCI-7314 is a high-performance PCI motion controller designed to facilitate precise control of up to four axes of motion. This controller allows for software programmability, enabling customization to meet specific application requirements. It supports event-based motion profiling, velocity profiling, and point-to-point positioning within velocity control applications. In the velocity control mode, the PCI-7314 maintains a pre-programmed fixed velocity until interrupted by a home switch, limit switch, or a user-initiated stop command. The PCI-7314 operates in open-loop mode and is suitable for half, full, and micro-stepping applications.

Programming the PCI-7314 is simplified through the use of the NI application programs, such as ValueMotion or ValueMotion VIs, leveraging a robust API that facilitates integration with languages like Visual Basic and C. The controller features a high-density 68-pin female connector that provides a 24-bit digital I/O port, easily accessible via a separate VHDCI connector. This device can be installed in any +5 V PCI expansion slot within a Windows-based computer.

Despite the announcement of its obsolete status by National Instruments, the PCI-7314 remains available for purchase and repair through Apex Waves. The PCI-7314's key specifications include a maximum step frequency of 750,000 steps per second and a maximum encoder frequency of 1 MHz. It operates within an input voltage range of 0 to 12 V and outputs between 0 to 5 V, consuming 6 W of power. The power requirements include +5 V, +12 V, and –12 V with specific current ratings. Comprehensive manuals are available for download, and interested buyers should contact a sales representative for pricing information. The PCI-7314 is backed by a 2-3 year warranty, ensuring reliable performance in motion control applications.