An arrangement for driving a turbomachine having a rotor, the arrangement comprising: an input shaft; a motor generator device, the motor generator device having a motor mode of operation and a generator mode of operation; a differential gear device rotationally coupled to the input shaft and rotationally coupled to the motor generator device; and, a hydraulic assembly rotationally coupled to the differential gear device and rotationally coupled to the motor generator device, the hydraulic assembly having a plurality of pistons (82, 86) that includes a first plurality of pistons and a second plurality of pistons; and a pair of wobbler plates being in a first position in the motor mode of operation, wherein the first position provides a maximum piston displacement in the plurality of pistons, and wherein one of the pair of wobbler plates (90, 94) is configured move to a second position during the motor mode of operation to limit a hydraulic pressure within the hydraulic assembly, and wherein the pair of wobbler plates (90, 94) includes a first wobbler plate and a second wobbler plate, the first wobbler plate being configured to adjust a stroke of the first plurality of pistons and the second wobbler plate being configured to adjust the stroke of the second plurality of pistons, and further comprising a controller operably coupled to the input shaft, the motor generator device and the hydraulic assembly, wherein the controller includes a processor that is responsive to executable instructions when executed on the processor for moving the second wobbler plate to reduce a displacement of the second plurality of pistons to limit pressure levels within the hydraulic assembly. an input shaft; a motor generator device, the motor generator device having a motor mode of operation and a generator mode of operation; a differential gear device rotationally coupled to the input shaft and rotationally coupled to the motor generator device; and, a hydraulic assembly rotationally coupled to the differential gear device and rotationally coupled to the motor generator device, the hydraulic assembly having a plurality of pistons (82, 86) that includes a first plurality of pistons and a second plurality of pistons; and a pair of wobbler plates being in a first position in the motor mode of operation, wherein the first position provides a maximum piston displacement in the plurality of pistons, and wherein one of the pair of wobbler plates (90, 94) is configured move to a second position during the motor mode of operation to limit a hydraulic pressure within the hydraulic assembly, and wherein the pair of wobbler plates (90, 94) includes a first wobbler plate and a second wobbler plate, the first wobbler plate being configured to adjust a stroke of the first plurality of pistons and the second wobbler plate being configured to adjust the stroke of the second plurality of pistons, and further comprising a controller operably coupled to the input shaft, the motor generator device and the hydraulic assembly, wherein the controller includes a processor that is responsive to executable instructions when executed on the processor for moving the second wobbler plate to reduce a displacement of the second plurality of pistons to limit pressure levels within the hydraulic assembly.