Mid-Range Stepper/Servo Motion Controllers
NI 734x
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Up to 4 axes of motion
Configurable stepper or servo control
Up to 4 MHz stepper output rate
3D linear and circular interpolation
3D contouring
62 µs PID loop update rate
Patented step generation technology
for smooth stepper motion
Operating Systems
• Windows Vista/XP/2000
• LabVIEW Real-Time
Recommended NI Software
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LabVIEW
NI Motion Assistant
LabWindows
™
/CVI
Measurement Studio
Other Compatible Software
• Visual Basic
• C/C++
Driver Software (included)
• NI-Motion
Overview and Applications
NI 734x motion controllers are for end users and machine builders who
need to develop powerful applications quickly and easily. With the
proper drive, you can use NI 734x motion controllers for stepper/servo
motor control and piezoelectric control. These controllers also have four
general-purpose analog inputs that you can use in simple application
monitoring or as feedback for closed-loop control.
Distributed Control with LabVIEW Real-Time
You can use the NI-Motion driver software with the NI LabVIEW Real-Time
Module. With this technology, you can create powerful, distributed
motion control systems using a PXI RT Series controller, the LabVIEW
Real-Time Module, and a PXI-734x motion controller. You can program
this type of system using LabVIEW on a separate computer. The main
advantages of a real-time system are high reliability and the capability
to create powerful distributed motion control solutions that connect to
the main PC using standard Ethernet.
Feature
Number of Axes
PAC Platforms
Linear, Circular, Spherical, and
Helical Interpolation; Blending
Trapezoidal, S-Curve Profiles
Closed-Loop Stepper Control
Contouring, Electronic Gearing, Onboard Programming
Sinusoidal Commutation for Brushless Servo Motors
Buffered Breakpoints, Buffered High-Speed Capture,
4 MHz Periodic Breakpoints
Number of Axes per 62.5 µs PID Rate
PWM Lines/DIO Lines/Analog Input Resolution
Maximum Step Output Rate/Encoder Input Rate
Programming API
Software
NI 734x
2, 4
PCI, CompactPCI/PXI
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1
2/32/12-bit
4 MHz/20 MHz
NI-Motion Driver
NI Motion Assistant, NI LabVIEW,
C, Visual Basic
Features
NI 734x controllers offer advanced features such as blended motion
trajectory control and fully coordinated circular, linear, point-to-point,
gearing, and vector-space control in either embedded motion operation
or host-centric programming environments. NI also provides contouring
capability for more complex moves. NI 734x controllers use a high-
performance motion controller architecture. The CPU and DSP components
operate together to optimize closed-loop control, automate systems control,
and implement motion command processing functions. The onboard CPU
uses an embedded real-time operating system that has event-driven
multitasking control. With this state-of-the-art approach, several motion
control programs and processes can operate simultaneously on the
controller, independently of the host PC and with no outside program
interaction unless the host program or user configuration initiates it.
NI [ NATIONAL INSTRUMENTS CORPORATION ]
