ACC2 has no artificial programming limits preventing overlapping programs and stations. The controller senses how much electrical current is being drawn, and will suspend stations automatically if the combined current threatens the transformer.
It is also possible to set controller and station limits (Stations, Station Limits) to control how many outputs may operate at once.
A conventionally wired ACC2 may run as many as 14 Hunter solenoids (including any P/MV outputs) simultaneously before suspending additional stations. Environmental factors or higher-draw solenoids may cause the overcurrent protection to activate at lower station counts.
It is possible to view the current draw of each station in the Diagnostics menu.