Adjustability of a hydrostatic transmission based on a combination of a pump and motor with adjustable geometric displacement. This ensures the highest rotation speed range is achieved with a good level of utilisation (Figure P 16). The adjustment range for rotation speed and the conversion range for torque are calculated as follows:
![aaa74fc525d19212a547511485e2c1d504fcd5a5 primaersekundaerverstellung_01.gif](/fileadmin/smc/files/aaa74fc525d19212a547511485e2c1d504fcd5a5.gif)
![28ec52654fd8b40a34113a374cd4fa0feeeca2ec 0001_primaersekundaerverstellung.gif](/fileadmin/smc/files/28ec52654fd8b40a34113a374cd4fa0feeeca2ec.gif)
Figure P 16: Options for converting transmission in relation to current-fed systems. a) = pure primary control; b) = pure secondary control; c) = composite control