How to set up the VLT® AutomationDrive FC 302 with the Integrated Motion Controller (IMC) for positioning applications

 In Blog, Documentary

For optimal performance and efficiency in delivering products and services, many industries need to utilize precise positioning and synchronizations. Some of these industries include:

  • Packaging/shipping machinery
  • Conveyor belts
  • Product labeling
  • Centrifuges

Up until now, servo drives have been the market standard. However, the added cost, additional cabling, and difficulty in commissioning these drives impede efficiency and widespread usage. Some added concerns would be the high failure rate of servo drives, and the fact that they do not work with open-loop control systems. 

One alternative is to use an AC drive. However, an additional module or encoder on the motor was required – until recently. 

Danfoss Drives has developed an advanced AC drive alternative to servo control. The Integrated Motion Controller (IMC) enables the AC drive to perform precise positioning and synchronization functions without the use of additional hardware or modules. The IMC is now configurable in the software of the VLT® AutomationDrive FC 302.

Its user-friendly graphical control panel makes the drive setup easy, the operation straightforward, and ultimately saves operating costs. Below, we will walk you through the basic steps to set up the VLT® AutomationDrive FC 3 to drive a motor for positioning applications.

First, you need to set up the drive for basic positioning. To accomplish this, you will need to use the local control panel to configure and control the drive. You will want to optimize the drive for the motor you are using by changing the drive’s default settings.

The first step is to go into the main menu, and select group 1: Load and Motor. In this menu, you should select General Settings. The first parameter in this menu configures the way in which the motor is controlled. The default is “speed control” – you can scroll to select “positioning control” instead, and press OK to enter positioning control mode.

Return to the main menu. Next, you should select group 4: Limits/Warnings. The default settings only allow the motor to rotate clockwise. You can configure which direction you want to allow the motor to rotate in this setting – either clockwise, counterclockwise, or both directions. Press OK to enable this setting once you have made your selection.

After, you are now ready to dial in your settings for positioning. (The default is in stop mode.)

In order to calculate the scaling factor, which for IMC is always per motor revolution, you must use the gearbox factor on your particular motor.

Return to the main menu, and select group 17: Position Feedback to enter into the drive for scaling. Select the group Position Scaling to alter the scaling unit. You should change this number to the factor  calculated for your particular motor. 

The next step is to configure your terminal and make homing configurations.

Your inputs may be configured in group 5, found in the main menu. Select group 5: Digital In/Out. Then select Digital Inputs from the sub-menu. You will configure these settings according to your homing sensor setup.

Finally, you will need to set your homing configuration. In the main menu, select group 17: Position Feedback, and scroll down to select Position Homing. The default will be “no homing.” Configure according to your homing sensor setup. To set a minimum and maximum homing position, go into group 3: Reference/Ramps, and select Reference Limits to set your minimum and maximum positions. 

These parameters should set up your full range of motion according to your application needs.

And remember, for all of your Danfoss Drive needs, contact Elite Controls today.