Establishes the control order origin; external, control block or from Simulink.

External

The command signals are from the digital inputs.

Block of Commands

The command signals are from the “Control Block” input placed on the switch icon.

• The P connector, on the icon, allows users to send 0 or 1 command to all the switches.

You must send to this connector a whole value where each bit corresponds to the command signal from each switch. The less significant bits (1, 2, 3) correspond to the phases A, B, and C switches in their forward breakdown voltage condition. The 4, 5, and 6 bits correspond to the phases A, B, and C switches in their reverse condition. Therefore, the whole value of bit 5 on the P connector is “000101” in binary value and commands the firing of the A and C phases in the forward breakdown voltage condition of the switch.

• The D connector on the icon allows users to set a delay to each switching.

This function is available only if the “High precision” switch has been selected. A decimal value between 0.0 and 1.0 must be applied to this connector for each transition of one of the switches. The 0.0 value means no delay and a 0.5 value means a 50% delay accordingly to the actual calculation time step used.

Simulink

The command signals are from a HyperLink block. The following information must be supplied: