The National Instruments 779034-01, known as the PCI-7390, is a sophisticated 4-Axis Isolated Stepper Motion Controller designed to deliver precise control and movement of stepper motors. Utilizing the PCI bus interface, this module ensures high-speed connectivity and efficient management of complex motion sequences. At the core of the PCI-7390 is a dual process architecture, integrating a 32-bit microcontroller and a Digital Signal Processor, enabling advanced control of various motion types including point-to-point, linear, and circular movements. Users can also implement custom trajectory planning using higher-level software applications.

The PCI-7390 features four encoder input channels, supporting both incremental and absolute encoders, which facilitates accurate motion control and real-time error correction across all axes. Additionally, the controller is equipped with eight general-purpose I/Os that offer both sinking and sourcing configurations with an input voltage range of 0 to 30 Volts, optically isolated. Each input has a maximum current rating of approximately 2.5 mA. The output capabilities consist of eight general-purpose I/Os with jumper-selectable configurations, supporting output voltages from 5 to 30 Volts at a maximum of 1 Ampere.

The operation of the PCI-7390 requires a 24 Volts ±10% supply with a current draw of up to 500 mA. When interfaced through a PCI bus, it requires up to 600 mA at 5 Volts and 50 mA at 12 Volts. With dimensions of 17.8 cm x 9.9 cm and a weight of 134 grams, the PCI-7390 offers a compact and lightweight solution for indoor applications, functioning optimally in environments ranging from 0 to 50 degrees Celsius and capable of safe storage between -20 and 70 degrees Celsius. Designed for reliable performance with a pollution degree of level 2, it should be installed at altitudes not exceeding 2000 meters above sea level.