National Instruments ISM-7402

The National Instruments ISM-7402 Integrated Stepper is a robust and versatile solution designed for compatibility with the NI 7330, NI 7340, and NI 7350 motion controllers. This integrated stepper features a digital MOSFET amplifier that supports 16 kHz PWM (Pulse Width Modulation) control, with a supply voltage range from 12 VDC to 60 VDC, making it suitable for diverse setups and power conditions. The device includes optically isolated logic support from 5 V to 24 V, facilitating seamless integration into various control systems. The ISM-7402 accommodates sourcing, sinking, or differential signals, addressing various application needs.

For optimal operation, the stepper requires a 12 VDC to 60 VDC power supply, with the PS-12 or PS-13 from National Instruments recommended. A reliable step signal source, such as a PLC or motion controller, is essential for proper functionality. The ISM-7402 is engineered for efficient performance, demonstrating low input current requirements, with typical values of 5 mA at 4 V and 15 mA at 30 V. It offers selectable pulse frequency settings of 150 kHz or 2 MHz, supporting minimum pulse widths of 3 μs and 0.25 μs, respectively.

Constructed with a compact and durable design, the ISM-7402 measures 2.22 in. × 3.35 in. × 4.21 in. excluding the pilot or shaft, which measures 0.25 in., ensuring secure motor connections. Weighing 42 oz, it features a rotor inertia of 6.52 × 10⁻³ oz-in-sec². The device operates effectively within a temperature range of 0 °C to 40 °C, ensuring reliable performance across various environments. The ISM-7402 is backed by a three-year warranty and provides manuals available for download in PDF format for further technical assistance.