Configure the AKD / AKD2G Drive

The Configuration tab under the EtherCAT ***EtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs: AKD tab is used to configure drives once these conditions have been met:

• The EtherCAT Scan and Association has been performed.
• Your project is compliant with the physical devices on the EtherCAT network.
• You have activated the Online Configuration mode in the EtherCAT Toolbar.

You then have access to all of the AKD configurations and parameters.

1. In the Project Explorer, double-click the new AKD Drive or select Configuration from the context menu to open all the parameters linked to it.
   

Figure 4-27: AKD Configuration

2. Define the motion parameters in the Limits tab to configure the limited motor torque Torque is the tendency of a force to rotate an object about an axis. Just as a force is a push or a pull, a torque can be thought of as a twist, speed, and acceleration
   
   
3. Define the motion parameters in the Position Loop tab to configure the limiting error.
   
   
4. Define the resolution of the feedback position in the Feedback tab.
   For all feedback types, the motor position feedback sent from the AKD drive to the controller through EtherCAT is normalized to 20 bits/rev or 1048576 counts/rev.
5. Define the units used for the motion 1 The normal units screen in the AKD WorkBench GUI is not included in the KAS-IDE. :
• For Pipe Network, see Set the Axis Block Position Units.
• For PLCopen A vendor -and product- independent worldwide association active in Industrial Control and aiming at standardizing PLC file formats based on XML, see Axis Data Parameters.
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• User units in the PLC "Programmable Logic Controller" A Programmable Logic Controller, PLC, or Programmable Controller is a digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. Used to synchronize the flow of inputs from (physical) sensors and events with the flow of outputs to actuators and events language editors are:

  • Position: User unit
    
  • Velocity User unit/sec
    
  • Acceleration: User unit/sec²
    

  Several AKD tabs contain units that follow the standard AKD format:

  • Position: 16 bits/rev
    
  • Velocity: RPM "Revolutions per minute" Is a unit of frequency of rotation: the number of full rotations completed in one minute around a fixed axis. It is used as a measure of rotational speed of a mechanical component
    
  • Acceleration: RPM/ Sec
6. To ensure high performance, define the load for your servo system.
   KAS-IDE "Integrated development environment" An integrated development environment is a type of computer software that assists computer programmers in developing software. IDEs normally consist of a source code editor, a compiler and/or interpreter, build-automation tools, and a debugger provides several options for performing the drive tuning:
• Slider Tuning - Use the slider to adjust to a designated bandwidth In computer networking, bandwidth often refers to a data rate measured in bits/s, for example, network throughput. The reason for the connection of data rate with the term bandwidth is that the limit to the data rate of a physical communication link is related to its bandwidth in hertz (pre-calculated tuning).
• Performance Servo Tuner - Takes the drive through an automatic tuning sequence.
• Manual Tuning - Used to set gains individually for:
  • Current Loop
  • Position Loop
  • Velocity Loop

• See AKD Drive Configuration for more information about AKD configuration.
• See the FAQs for more information about AKD Firmware Download.

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• After your application is downloaded to the controller, you can activate the Online Configuration Mode to configure the drives with the Setup Wizard.
  See AKD Setup Wizard for more information.