The 6SL3520-2XB07-5AA0 is the simplest control path to the highest G115D wall-mounted power — 7.5 kW FSC with I/O Control and B-connector. The AA0 variant uses basic hardwired digital I/O for start/stop, direction, and fixed-speed selection with single-channel STO. At 19 A HO (38 A peak overload), this is the drive for the heaviest conveyor zone that does not need fieldbus integration — wire the run command, set the speed reference, and the drive runs. No network, no IP addresses, no configuration software.

Why pair the simplest control with the highest power?

For a main conveyor trunk that runs at a fixed speed or switches between two speeds, I/O Control is all the control sophistication required. The drive's job is to start reliably against a fully loaded belt and maintain speed — a hardwired run command and a potentiometer for speed reference do exactly that. Choosing AA0 at 7.5 kW saves the cost of PROFINET infrastructure on a drive whose control requirements are fully satisfied by four digital inputs and an analog input. The B-connector handles the power side with the same mechanical robustness as every other G115D connector variant.