Auxiliary Power Modules (APM) are connected to the DC Bus, and supply DC power to another power group's DC bus, referred to as the "Sub Power Group". APMs can be a pass through extension of the DC Bus, or a step down to a lower DC Bus voltage. Multiple APMs can be connected to create multiple Sub Power Groups, at the same or different voltage levels.
Power flow to/from the DC Bus is reduced proportionally by the APM efficiency.
The following APM types are defined in the database:
APM application requirements can be defined as a Power vs Time Sequence, or directly linked to another Power Group in the project, as specified by the Sequence Type.
Specify the Sequence Type on the Main form. "Sequence" is the default setting.
Then open the Sequence form and enter or import a Power vs Time sequence.
If the project contains more than 1 power group, all other power groups are included in the Sequence Type list. In the project below, the PG1.Ax2 APM feeds power to the DC Bus of Power Group 2.
Then open the Sequence form and the Power vs Time Sequence is the Power Group 2 DC Bus power. In this case, the Sequence form is "locked" from changing the Sequence.
|Tip||A quick way to copy the Power Group 2 profiles to the APM sequence is to select Sequence Type = Power Group 2, and then switch back to Sequence Type = (Sequence).|