3U OpenVPX SOSA™-aligned PWM Servo Motor Drive

3U OpenVPX SOSA™-aligned PWM Servo Motor Drive

Model 3U VPX 68PW1

3U OpenVPX SOSA™-aligned PWM Servo Motor Drive

1-Channel, 28VDC-in / 23 - 65 VDC Regulated PWM V-out @ 10 A, 2-Ø Brushed or 3-Ø BLDC

Open Systems Configurable 

The 68PW1 is a 3U OpenVPX SOSA-aligned (basis, Snapshot 2) single-axis PWM servo motor drive that can be configured with closed loop feedback measurement options including Hall, Resolver/Synchro or Encoder. The PWM drive provides programmable, regulated PWM output drive (up to 65 V @ 10 A continuous) from a single +28 VDC input source. Ideally suited for rugged Mil-Aero applications, the 68PW1 delivers off-the-shelf solutions that accelerate deployment of SWaP-optimized systems in air, land and sea applications.

Backround Built-In-Test (BIT)

BIT continuously monitors the status of all I/O during normal operations and is totally transparent to the user. SBC resources are not consumed while executing BIT routines. This simplifies maintenance, assures operational readiness, reduces life-cycle costs and - keeps your systems mission ready.

One-Source Efficiencies

Eliminate man-months of integration with a configured, field-proven system from NAI. Specification to deployment is a seamless experience as all design, state-of-the-art manufacturing, assembly and test are performed - by one trusted source. All facilities are located within the U.S. and optimized for high-mix/low volume production runs and extended lifecycle support.

Product Lifecycle Management

From design to production and beyond, NAI’s product lifecycle management strategy ensures the long-term availability of COTS products through configuration management, technology refresh and obsolescence component purchase and storage.


68PW1 Block Diagram


  • 3U OpenVPX (ANSI/VITA 65) / SOSA Profiles Supported (P2/P3 exception):
    • MOD3-PAY-2U2U-14.2.171
    • SLT3-PAY-2U2U-14.2.17
      • Data plane: 1 x1 PCIe (default)
      • Control plane: 1x 1000Base-KX
    • p1 VPX Tyco MULTIGIG RT 3 per SOSA
  • PWM/Drive
    • Single channel, H-bridge
    • Motor types supported:
      • 2-phase brushed
      • 3-phase brushless (BLDC)
    • 28 Vin (nominal) drive power
      • MIL-STD-704F (18-36 VDC)
    • 24V to 65V programmable / regulated PWM output drive
    • 10 A maximum (to 650 W max.)
    • Discrete drive-enable control pins
    • P2/P3 TE high-current blade connectors
  • Ancillary I/O
    • 4x ±10V A/D, 12-bit min. (16-bit avail.)
    • 4x ±10V D/A, 12-bit min. (16-bit avail.)
    • 1x RS-422/485 SDLC control option
    • 1x RS-232 (console/debug, front I/O)
    • 1x GbE (10/100/1000BASE-T)
      (control or maintenance, front I/O)
  • Feedback/Control Options:
    • Hall
    • Resolver/Synchro + AC Reference
    • Encoder
  • IPMC Support
    • VITA 46.11 Tier-2, basic, compatible (configured option)
  • Power Input
    • +12V, ±12V AUX, +3.3V AUX
    • ~10 W power dissipation (est./typ.)
    • ~96% efficient PWM Drive
  • Operating Systems (host supported)
    • Xilinx PetaLinux
    • Wind River® VxWorks®
    • DDC-I Deos
  • Background Built-In-Test Continuous BIT (as applicable)
  • Modular & Programmable Architecture
  • Intelligent I/O library support (included)
  • Commercial or Rugged Applications
  • Operating Temperature
    • Rugged: -40º C to 85º C
  • Mechanical (ANSI/VITA 48)
    • Conduction-cooled; 3U, 1.0" pitch
    • Weight: ~1.95 lbs.

N/A - If you're in need of specific functions please visit our Customer Configurable Systems page for options.