NI PXI-7340 Motion Controller

NI PXI-7340 Motion Controller

About the NI 7340 Motion Controller

The NI 7340 motion controller features advanced motion control with easy-to-use software tools and add-on motion VI libraries for use with LabVIEW.

Features

The NI 7340 motion controller is a combination servo and stepper motor controller for PXI, Compact PCI, and PCI bus computers. The NI 7340 motion controller provides fully programmable motion control for up to four independent or coordinated axes of motion, with dedicated motion I/O for limit and home switches and additional I/O for general-purpose functions.

You can use the NI 7340 motion controller to perform arbitrary and complex motion trajectories using stepper motors or servo devices. Servo axes can control servo motors, servo hydraulics, servo valves, and other servo devices. Servo axes always operate in closed-loop mode. These axes use quadrature encoders or analog inputs for position and velocity feedback and provide analog command outputs with an industry-standard range of ±10 V.

Stepper axes can operate in open or closed-loop mode. In closed-loop mode, they use quadrature encoders or analog inputs for position and velocity feedback (closed-loop only), and provide step/direction or clockwise (CW)/counter-clockwise (CCW) digital command outputs. All stepper axes support full, half, and microstepping applications.

Hardware

The NI 7340 is a high performance motion controller that uses an advanced dual-processor architecture including a 32-bit CPU, combined with a digital signal processor (DSP) and custom field programmable gate arrays (FPGAs). The first-in-first-out (FIFO) bus interface and powerful function set provide high-speed communications while off-loading complex motion functions from the host PC for optimum command throughput and system performance.

What You Need to Get Started

  NI PXI-7340 or PCI-7340 motion controller 

  NI-Motion 6.1 or later driver software and documentation 

  One of the following software packages and documentation:

– LabVIEW 6.0 or later– LabWindows™/CVI™ 7.0 or later

– Measurement Studio

– C/C++– Microsoft Visual Basic 6.0 

  A computer with an available PXI or PCI slot

Optional Equipment

 • Cables and cable assemblies for motion and digital I/O 

 • RTSI cable for connection with other National Instruments devices 

 • Universal Motion Interface (UMI) wiring connectivity blocks with integrated motion signal conditioning and motion inhibit functionality 

 • Stepper and servo motor compatible drive amplifier units with integrated power supply and wiring connectivity 

 • Connector blocks and shielded and unshielded 68-pin screw terminal wiring aids

Key Features

High-performance servo control: The PXI-7340 uses a high-performance servo control loop that enables precise and accurate motion control.

Stepper Motor Support: The controller also supports stepper motors, ideal for applications requiring discrete motion steps.

On-board Programmable Logic Controller (PLC): features an on-board PLC that can be used to perform complex motion control sequences.

FIFO bus interface: Provides high-speed data transfer between the controller and host PC using the FIFO bus interface.

Multitasking Capability: The PXI-7340 is capable of synchronised, coordinated motion control of up to four axes under preemptive, multitasking, constant conditions.

Dual-processor architecture: An advanced dual-processor architecture combines a 32-bit central processor, digital signal processor (DSP), and custom FPGA for superior motion control performance.

Technical Specifications

Number of axes: 4 independent motion axes

Maximum servo update rate: 62.5µs/axis

Maximum stepper motor speed: 3,000 RPM

On-board PLC: 32-bit RISC processor, 256 KB memory

Operating temperature: -20 to 70°C (-4 to 158°F)

Dimensions: 140 x 140 x 40 mm (5.5 x 5.5 x 1.6 inches)

Weight: 680 grams (24 ounces)

Application Scenarios

Precise positioning: Can be used in machining, assembly and robotics applications to achieve precise positioning of motors.

Motion Control: Can be used in applications such as conveyor belts, packaging machines and wind turbines to control the motion of the motor.

Test and Measurement: Can be used in applications such as motor characterisation and fault detection to test and measure motor performance.

Software Compatibility

The PXI-7340 is compatible with a variety of software tools, including NI LabVIEW, NI Motion Control Toolkit, and NI Sequencer.These software tools can be used to configure the PXI-7340, develop motion control applications, and monitor system performance.