Juan,
Can you clarify what additional information you need? The wrapper functions perform the indicated operations. For example SPEED_run calls the speed control loop included with KMS.
KMS is based on fixed-point math and is a normalized motor control solution. This means that the maximum possible speed in the system is equal to 1.0 in normalized units. The normalization factor for speed is called FULL_SCALE_SPEED_RPM, it is located in the system.h file.
In the API reference guide the maximum values for profile limits are provided in the entry for the TRAJVEL_config_t structure.