CBR600 series energy consumption braking units are mainly used in large inertia loads, four-quadrant loads, fast stops and long time energy feedback occasions. During the braking of the driver, due to the mechanical inertia of the load, the kinetic energy will be converted into electric energy and fed back to the driver, resulting in the DC bus voltage of the driver rising. The energy consumption brake unit converts excess electrical energy into resistive thermal energy consumption to prevent excessive bus voltage from damaging the driver. The energy consumption brake unit has over current, over voltage, over temperature, brake resistance short circuit protection, etc. With the parameter setting function, the user can set the braking start and stop voltage; It can also realize the need of high power driver braking through master and slave parallel.