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North Atlantic 68PW1 3U OpenVPX SOSA™-aligned PWM Servo Motor Drive
North Atlantic 68PW1 3U OpenVPX SOSA™-aligned PWM Servo Motor 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.
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 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.
Key Features
- PWM/Drive: 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 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.
Key Benefits
Background 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
Trust the Experts at Integrys
For more than 50 years, Integrys has been the industry leader in selecting and evaluating rugged and embedded computers, imaging and video technology and engineering solutions.
Specifications
| PWM Amplifier Specifications | (Single channel, unless otherwise specified) (after a 5 second warm-up period) |
| Power (Amplifier switching supply) | 65 VDC ±5% maximum (programmable), internally supplied Standard: Brushed Motor interface or Brushless (BLDC) |
| Resolution / Loop Update Rate | 12-bit (monotonic over temperature) / @ 115 kHz |
| Output | 10 A continuous (maximum) Short circuit protected. Thermal protection determines duration of peak current drive. |
| Frequency (PWM) | 345 kHz |
| Bandwidth | 800 Hz (minimum) open loop minimum in current mode w/ user programmable loop control variables. |
| Efficiency | 96% (minimum, at 65 VDC / 5 A) |
| Quiescent Power | +12VDC at 900mA with no motors connected +12VAUX at 45mA -12VAUX at 25mA +3.3VAUX at 350mA Note: +5V NOT required |
| Master Drive Enable | A discrete input, (normally open), opto-isolated from the motor supply, must receive a switch closure to permit operation (and cannot be overridden). |
| Shut down conditions (@ 65 VDC nom.) | RS-422 time-out, PWM card time out (software watchdog), Drive Fault (bias loss), Supply Overvoltage (71.5 VDC), Supply under-voltage (58.5 VDC), Over-Temp. condition (110 °C), Internal H-Bridge fault. |
| Output Filtering | LC Filter added to all motor drive signals (EMI mitigation) |
| Input current limit / soft-start | Characteristics TBD |
| Over-current protection | Solid state circuit breaker ‘detect and protect’ – characteristics TBD. |
| Ancillary I/O Specifications | |
| A/D |
4-Ch. ±10V, 12-bit (minimum) 16-bit (available) resolution, ±0.25% linearity FSR |
| D/A | 4-Ch. ±10V, 12-bit (minimum) 16-bit (available) resolution, ±0.20% linearity FS |
| RS-422/485 Serial Communications | 1-Ch. programmable, up to 1.5 Mbps asynchronous or 10 Mbps synchronous (SDLC) |
| Ethernet, Command & Control | 1-Port 1000BASE-KX provided on rear VPX connectors 1-Port 10/100/1000BASE-T provided on front debug/maintenance connector |
| RS-232 Serial Debug/Console | 1-Ch. RS-232, debug/console provided on front debug/maintenance connector |
| Feedback, Outer-loop | 1-Ch. Hall, Resolver/Synchro or Encoder (configured options, contact factory) |
| IPMC | VITA 46.11 Tier-2 basic, compatible (configured option, contact factory) |
Datasheet
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