Low-Cost Stepper Motion Controllers
Low-Cost Stepper Controller
NI 7330 Series
• Up to 4 axes of stepper motion
• 3D linear interpolation
• PXI (cPCI) and PCI versions available
Operating Systems
• Windows 2000/NT/XP
Models
• NI PCI-7334
• NI PXI-7334
Recommended Software
• LabVIEW
• NI Motion Assistant
• LabWindows/CVI
• Measurement Studio
• Motion Control Module
for Measurement Studio
Other Compatible Software
• Visual Basic
• C/C++
Driver Software (included)
• NI-Motion
Overview and Applications
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:
• Linear interpolation for coordinating multiple axes.
• Real-time system integration for directly communicating
with data acquisition or image acquisition boards
• High-performance stepper generation for ensuring smooth
motion at high velocities.
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.
Feature
Maximum number of axes
Closed loop stepper control
Linear interpolation
Configurable auxiliary DIO
RTSI
S-curve
Configurable move complete criteria
Software limits
High-speed capture
Blending
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
PCI
PXI
NI 7330 Series
4 axes
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
1
2
32 bits
12-bit A/D
4 MHz maximum
20 MHz maximum
✓
✓
Motion
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
Low-Cost Stepper Controller
Technical Support for Motion Software
As a complement to your motion software product, consider:
Technical Support
– FREE through applications engineers
worldwide, Web resources, and Premier Support –
ni.com/support
Motion Control Fundamentals Training
– Instructor-led
courses –
ni.com/training
Professional Services
– Feasibility, consulting, and integration
through our Alliance Program members –
ni.com/alliance
For more information on NI services and support, visit
ni.com/services
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
Accessories
NI Motion Assistant......................................................778553-01
Universal Motion Interfaces ......................................see page 640
Drives..........................................................................see page 642
Cables..........................................................................see page 645
BUY ONLINE!
Visit
ni.com/info
and enter pxi7334, pci7334.
Specifications
Trajectory update rate range............................
Maximum update rate...............................
4-axis update rate .....................................
Multi-axis synchronization ...............................
Trajectory parameters
Position range............................................
Maximum relative move size ....................
Velocity range............................................
Acceleration/deceleration................................
62.5 to 500 µs/sample
62.5 µs/axis
250 µs total
< 1 update sample
±2
31
steps
±2
31
steps
1 to 4,000,000 steps/s
61 to 128,000,000 steps/s2
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
Clock sources............................................. Internal or external
Power Requirements
+5 VDC (±3%) ...................................................
+12 VDC (±3%) .................................................
-12 VDC (±3%)..................................................
Power consumption..........................................
1A
30 mA
30 mA
5.7 W, maximum
System Safety
Watchdog timer function ................................. Resets board to startup state
Shutdown input ................................................ Disable all axes and command outputs
Physical
PCI ...................................................................
PXI ...................................................................
Connectors
Motion I/O connector ................................
Digital I/O connector .................................
17.5 by 9.9 cm (6.9 by 3.9 in.)
16 by 10 cm (6.3 by 3.9 in)
68-pin female high-density VHDCI type
68-pin female high-density VHDCI type
Motion I/O
Stepper outputs
Maximum pulse rate .................................
Step output mode......................................
Encoder inputs..................................................
Maximum count rate .................................
Forward, reverse, and home inputs
Number of inputs.......................................
Control .......................................................
4 MHz (full, half, and microstep)
Step and direction or CW/CCW
Quadrature, incremental, single-ended
20 MHz
Environment
Operating temperature..................................... 0 to 55 °C
Storage temperature ........................................ -20 to 70 °C
Relative humidity range ................................... 10 to 90% (noncondensing)
3 per axis
Individual enable/disable, stop on input, prevent motion,
find home
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
Motion
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
