In this step, use a PID Controller-Digital block and a Square Wave Inverter-3 Phase block to design the volts/frequency controller for the motor.
After placing the blocks in your diagram, encapsulate them in a compound block using the Edit > Create Compound Block command. Name the compound block Volts/Hz Controller.
This block design requires only 2 inputs and 3 outputs. By default, when you create a compound block, Embed creates and outputs for all the blocks contained in the compound, which may not be appropriate. In this case, you must remove two inputs and one output using the Edit > Remove Connector command.
Label the input and output connector tabs as shown below:
Drill into Volts/Hz Controller and remove all unneeded wire connections within the compound by clicking, holding and dragging the wires with the left mouse button to an open space and releasing the button.