The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Stepper Driver Specs: 2M415

    Collected from various spots around the Web, including evanescent eBay listings, and reformatted to make sense, these specs describe the 2M415 stepper driver: a smaller sibling of the 2M542 family.

    Blurb

    • +15 to 40VDC Supply Voltage
    • H-Bridge, 2 Phase Bi-polar Micro-stepping Drive
    • Suitable for 2-phase, 4, 6 and 8 leads step motors, with Nema size 16 to 23
    • Output current selectable from 0.21 ~ 1.5A peak
    • Compact credit card size package
    • Optically isolated single ended TTL inputs for Pulse, Direction and Enable signal inputs
    • Selectable resolutions up to 12800 steps
    • Over Voltage, Coil to Coil and Coil to Ground short circuit protection.

    Electrical specs

    Parameters Min Typ Max Unit
    Output Current (Peak) 0.21 – 1.5 Amp
    Supply voltage 15 36 40 VDC
    Logic Input Current 7 10 16 mA
    Pulse input frequency 0 – 200 KHz
    Low Level Time 2.5 µsec

    Mechanical specs

    Cooling Natural Cooling or Forced Convection
    Space Avoid dust, oil, frost and corrosive gases
    Ambient Temp 0 °C – 50 °C
    Humidity 40 – 80 %RH
    Vibration 5.9 m/s² Max
    Storage Temp. -10 °C – 80 °C
    Weight Approx. 150 gram

    Dimensions

    2M415 Footprint
    2M415 Footprint

    Wiring diagram

    2M415 Wiring
    2M415 Wiring

    Notice that the driver requires a positive voltage for the optoisolators.

    Of course, the box from halfway around the planet contained HB-415M drivers. Should you go looking with the usual keywords, you’ll find that HB-number turns up mostly “House Bill number” citations from various state legislatures. Popping the top off the drive reveals www.sikesai.com, which eventually produces a description and PDF datasheet for the driver. It turns out to be an “Ultra Low Noise” driver, whatever that means, with reasonably standard specifications that correspond more-or-less to the 2M415 drivers I thought I was getting.