Ndrive QL and Ndrive QLe Digital Panel-Mount Piezo Drive

Description

Design Features

  • Real-time distributed control architecture allows synchronized motion control on up to 32 axes of piezo and/or servomotor stages
  • Deterministic FireWire (IEEE-1394) high-speed serial communication protocol
  • Single or multi-axis Position Synchronized Output (PSO) for real-time triggering of events
  • Available with high-precision (to 20-bit) sensor resolution for capacitive sensor feedback
  • Thermally-stable feedback circuit design option
  • Configurable analog input (to 18-bit) for external feedback sensor integration or command generation
  • Advanced control features such as Learning Control, Harmonic Cancellation, and Command Shaping improve tracking error and overall process throughput
  • Comprehensive software tools for diagnostics, tuning, and programming
  • Program in RS-274 G-code, AeroBasic™ using Aerotech's IDE or create custom interfaces with Microsoft .NET including C#, VB.NET® , Managed C++, or LabVIEW®
  • CE approved; follows the 2011/65/EU RoHS 2 Directive
  • OEM version available

The Ndrive QL/QLe™ is a family of panel-mount nanopositioning piezo drives designed to be used with the Automation 3200 (A3200) motion controller. The A3200 is the controller of choice in many markets such as semiconductor, data storage, medical device manufacturing, laser processing, and metrology. The Ndrive QL and Ndrive QLe drives enable coordinated motion between piezo stages and servo axes at much higher rates than other controller/drive products.

Featuring a dual-core 456 MHz, double-precision, floating-point DSP, the QL/QLe drives provide extreme processing power in a wide variety of applications including point-to-point motion, linear and circular interpolation, multi-axis error correction, and autofocusing. High-speed interrupts and data logging capabilities provide a real-time link to external systems. The QL/QLe also offers high-speed positioning latching capability and single-axis (QL) or multi-axis (QLe) position synchronized output (PSO) for generation of pulses based on actual position feedback for applications ranging from laser firing to data acquisition system triggering.

Ultra-Precision Feedback Options

Using the latest technology and high-resolution A/D and D/A converters, the QLe enables sub-nanometer positioning resolution at high bandwidths. The QLe capacitive sensor feedback circuitry provides ultra-low noise performance over the full travel range. In applications that do not require extreme positioning resolution, the QL drive offers lower-resolution ADCs and DACs providing the benefits of high-speed feedback and command generation at a more economical price point. The QLe employs a proprietary capacitive sensor feedback circuit resulting in industry-leading thermal stability and exceptional long-term holding stability. In closed-loop mode, linearity better than 0.01% over the full travel range is achieved with both the QL and QLe.

I/O Options

In addition to the four optically-isolated digital inputs, two high-speed digital inputs, and four optically-isolated digital outputs, both the Ndrive QL and QLe are equipped with analog inputs and analog outputs (one each for the QL and two each for the QLe). For ultra-precise applications, the QLe offers an 18-bit analog input that can be programmatically configured to accept an external feedback sensor or position command. This analog input also allows the high-voltage power amplifier to be controlled directly by an external low-level analog input. Also, the QLe has one 20-bit analog output that can be programmatically configured for position or voltage monitoring at very high resolutions. The QL drive offers the same analog input/output functionality at 16-bit resolutions.

Advanced Software and Control Features

The A3200 software uses PID servo loops with advanced feedforward and multiple integrators coupled with eight programmable filters to supply the user with all necessary tools needed to optimize motion performance. Additional software options such as the Dynamic Controls Toolbox and Motion Designer packages make available a host of advanced, yet easy-to-use, tools such as Learning Control, Harmonic Cancellation, Command Shaping, and Cross-Axis Feedforward to improve tracking errors and provide faster step-and-settle times.

Learn more about our controls and software HERE.

Powerful Programming Environment

Aerotech’s A3200 focuses on ease of use for the programmer, shortens development times compared with other tools, and provides the flexibility to use the tools or controller most familiar to programmers. A complete Integrated Development Environment and a comprehensive .NET motion library provide classes for motion, I/O, status, and diagnostic information. Program in Visual Studio and use the .NET library, or use the Motion Composer (IDE) to develop code with Aerobasic™ commands or G code. A LabVIEW® VI library is available for NI users, while a complete C library is available for those using Visual Basic, C++, or C.

Automatic Parameter Configuration

Aerotech’s piezo stages all include a “FlashConfig” feature that stores all of the parametric information required to operate the stage. The stage is automatically identified and all operational parameters including axis calibration data are uploaded into the Ndrive QL/QLe, ensuring safe, accurate, and true “plug-and-play” operation.

Thermal Stability Comparison

Piezo controller design can have a significant effect on thermal stability causing excessive error in precision motion applications. See our Technical Note where we briefly describe some techniques used for controlling thermal effects and compare the thermal stability of our piezo control electronics with a competitive design.

Specifications

Ndrive QL and QLe Specifications

FeatureQL250QLe250
Package Type Panel-Mount
Processor Dual-Core 456 MHz, Double-Precision, Floating Point DSP
Power Supply 100-240 VAC; 50/60 Hz
Voltage Output -30 to +150 V
Sensor Type Capacitive Sensor
Sensor Resolution 17-bit 20-bit
Cont. Power Output 10 Watts
Peak Current Output 250 mA
Cont. Current Output 50 mA
Digital Inputs (4) Optically Isolated, (2) High Speed, and (1) ESTOP
Digital Outputs (4) Optically Isolated
Analog Inputs Qty. 1, 16-bit ±10 V Differential 2 total, ±10 V Differential (1) 16-bit General Purpose, (1) 18-bit High-Resolution Configurable for External Feedback or External Command Input
Analog Outputs Qty. 1, 16-bit ± 10 V Single-Ended 2 Total, ± 10 V Single-Ended (1) 16-bit General Purpose, (1) 20-bit High-Resolution Configurable for Position or Voltage Monitoring
High-Speed Data Capture Yes (50 ns latency)
Thermal Stability Standard Enhanced
Position Synchronized Output (PSO) Single-Axis Two-Axis
Communication Interfaces Firewire (IEEE-1394)
Servo Loop Update 24 kHz
Programming Environment Multi-Tasking AeroBasic, G-Code/RS-274
Weight 1.4 kg (3.0 lbs) 1.4 kg (3.0 lbs)
Standards CE approved, 2011/65/EU RoHS 2 Directive
  • Distributed Motion Control Graphic
    distributed motion control
  • Peak Voltage Limits Plot
    plot

Dimensions

  • Ndrive QL
    ndrive ql
  • Ndrive QLe
    ndrive qle

Ordering Information

Ndrive QL and QLe

OptionDescription
Ndrive QL250-C

Cost-effective, discrete panel-mount piezo drive with capacitive sensor feedback, 250 mA peak current, 50 mA continuous current, -30 to +150 V output. Features include:

  • Configurable input/outputs; 4 opto-isolated inputs, two high-speed digital inputs, 4 opto-isolated outputs, one 16-bit analog input, and one 16-bit analog output.
  • Single-axis Position Synchronized Output (PSO) standard
  • Motion Designer software is used to graphically generate and edit motion profiles that execute on the controller, providing the ability to import, run and evaluate motion profiles (trajectories). Included in the Motion Designer software is learning control that reduces tracking errors by as much as 1000 times.
Ndrive QLe250-C

High-performance, discrete panel-mount piezo drive with capacitive sensor feedback, 250 mA peak current, 50 mA continuous current, -30 to +150 V output. Features include:

  • High-precision 20-bit sensor resolution for cap sensor feedback in closed-loop.
  • Configurable input/outputs; 4 opto-isolated inputs, two high-speed digital inputs, 4 opto-isolated outputs, two analog inputs (1 18-bit, 1 16-bit), and two analog outputs (1 20-bit, 1 16-bit).
  • 2-axis Position Synchronized Output (PSO) standard
  • Motion Designer software is used to graphically generate and edit motion profiles that execute on the controller, providing the ability to import, run and evaluate motion profiles (trajectories). Included in the Motion Designer software is learning control that reduces tracking errors by as much as 1000 times.

A3200 Software Options

OptionDescription
-DYNAMIC CONTROLS TOOLBOX The Dynamic Controls Toolbox provides control algorithms that increase system performance such as settle time, accuracy, in-position stability and/or velocity stability.
-LABVIEW LabVIEW® VI samples
-MATLAB Includes MATLAB® library for motion, parameters, and data collection.