NI7330 [NI]
Low-Cost Stepper Motion Controllers; 低成本步进运动控制器
| 型号： | NI7330 |
| 厂家： | 
National Instruments |
| 描述： | Low-Cost Stepper Motion Controllers |
| 文件： | 总2页 (文件大小：110K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Low-Cost Stepper Motion Controllers
NI 7330 Series
• Up to 4 axes of stepper motion
• 3D linear interpolation
Operating Systems
• Windows 2000/NT/XP
• PXI (cPCI) and PCI versions available
Recommended Software
• LabVIEW
• NI Motion Assistant
• LabWindows/CVI
Models
• NI PCI-7334
• NI PXI-7334
• Measurement Studio
• Motion Control Module
for Measurement Studio
Other Compatible Software
• Visual Basic
• C/C++
Driver Software (included)
• NI-Motion
Feature
Maximum number of axes
Closed loop stepper control
Linear interpolation
Configurable auxiliary DIO
RTSI
NI 7330 Series
4 axes
Overview and Applications
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NI 7330 series devices are low-cost stepper motion controllers for
point-to-point applications. These low-cost motion controllers
provide new solutions for machine builders who need simple,
straightforward motion control without a lot of extra features.
Unlike other low-cost motion controllers, NI 7330 controllers
still have a variety of powerful features including:
S-curve
Configurable move complete criteria
Software limits
High-speed capture
Blending
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Upgradeable firmware
NI Motion software API
Number of axes per 62.5 microsecond PID rate
Static PWM outputs
DIO
Analog-to-digital converter
Stepper output rate
Encoder rate
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• Linear interpolation for coordinating multiple axes.
• Real-time system integration for directly communicating
with data acquisition or image acquisition boards
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32 bits
12-bit A/D
4 MHz maximum
20 MHz maximum
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• High-performance stepper generation for ensuring smooth
motion at high velocities.
PCI
PXI
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NI-Motion Driver Software
NI 7330 devices use the NI-Motion driver. The advantage of this is
that if your application needs change in the future, you can easily
upgrade your hardware without having to change your code. You can
also take advantage of any firmware updates with the field-
upgradable firmware.
Figure 1. NI 7330 Series Features
Integration Capabilities
Like other NI Motion controllers, NI 7330 controllers offer powerful
integration capabilities with both data acquisition and machine
vision. One of the most powerful is the RTSI bus or PXI trigger bus
capability that you can use to communicate directly with other
devices without extra wiring and without consuming bandwidth on
the host bus. An NI 7330 is ideal when using stepper motors for
applications where only simple motion is required.
638 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
Low-Cost Stepper Motion Controllers
Technical Support for Motion Software
As a complement to your motion software product, consider:
Ordering Information
NI PCI-7334 (4-axis stepper) ......................................778417-01
NI PXI-7334 (4-axis stepper) ......................................778444-01
Includes hardware and NI-Motion software, libraries, and examples
Technical Support – FREE through applications engineers
worldwide, Web resources, and Premier Support – ni.com/support
Accessories
NI Motion Assistant......................................................778553-01
Universal Motion Interfaces ......................................see page 640
Drives..........................................................................see page 642
Cables..........................................................................see page 645
Motion Control Fundamentals Training – Instructor-led
courses – ni.com/training
Professional Services – Feasibility, consulting, and integration
through our Alliance Program members – ni.com/alliance
BUY ONLINE!
Visit ni.com/info and enter pxi7334, pci7334.
For more information on NI services and support, visit ni.com/services
Specifications
Trajectory update rate range............................ 62.5 to 500 µs/sample
Maximum update rate............................... 62.5 µs/axis
4-axis update rate ..................................... 250 µs total
Multi-axis synchronization............................... < 1 update sample
Trajectory parameters
Digital I/O
Ports.................................................................. 4, 8-bit TTL ports, bit configurable,
sink or source 24 mA
Open-loop PWM outputs
Number of PWM outputs..........................
2
Position range............................................ 231 steps
Maximum relative move size .................... 231 steps
Velocity range............................................ 1 to 4,000,000 steps/s
Acceleration/deceleration................................ 61 to 128,000,000 steps/s2
Clock sources............................................. Internal or external
Power Requirements
+5 VDC ( 3ꢀ) ................................................... 1 A
+12 VDC ( 3ꢀ) ................................................. 30 mA
-12 VDC ( 3ꢀ).................................................. 30 mA
Power consumption.......................................... 5.7 W, maximum
System Safety
Watchdog timer function ................................. Resets board to startup state
Shutdown input................................................ Disable all axes and command outputs
Physical
Motion I/O
Stepper outputs
PCI ................................................................... 17.5 by 9.9 cm (6.9 by 3.9 in.)
PXI ................................................................... 16 by 10 cm (6.3 by 3.9 in)
Connectors
Motion I/O connector ................................ 68-pin female high-density VHDCI type
Digital I/O connector ................................. 68-pin female high-density VHDCI type
Maximum pulse rate ................................. 4 MHz (full, half, and microstep)
Step output mode...................................... Step and direction or CW/CCW
Encoder inputs.................................................. Quadrature, incremental, single-ended
Maximum count rate ................................. 20 MHz
Forward, reverse, and home inputs
Number of inputs....................................... 3 per axis
Control ....................................................... Individual enable/disable, stop on input, prevent motion,
find home
Environment
Operating temperature..................................... 0 to 55 °C
Storage temperature........................................ -20 to 70 °C
Relative humidity range ................................... 10 to 90ꢀ (noncondensing)
Trigger inputs.................................................... 1 per axis
Maximum repetitive capture rate ............. 150 Hz
Breakpoint outputs
Number of outputs .................................... 1 per axis, programmable polarity
Inhibit/enable output
Number of outputs .................................... 1 per axis, programmable polarity
Analog inputs ................................................... 12-bit resolution, 10 V range, 50 µs scan rate
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com 639
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