Method for operating a motor-roller controller wherein a first value indicative of an amperage at an input power port of a first motor-roller controller is measured by a meter of the first motor-roller controller. The first value is sent to at least one second motor-roller controller via a signal bus port of the first motor-roller controller. At least one second value indicative of an amperage at an input power port of the at least one second motor-roller controller is received at the signal bus port. A nominal value for the amperage at the input power port of the first motor-roller controller is determined depending on the first value and the at least one second value, and the motor-roller control port of the first motor-roller controller is operated with an output current to the motor-roller such that the amperage at the input power port reaches the nominal value.

Embodiments disclosed herein include a method of training a DNN. A processor initializes an element of an A matrix. The element may include a resistive processing unit. A processor determines incremental weight updates by updating the element with activation values and error values from a weight matrix multiplied by a chopper value. A processor reads an update voltage from the element. A processor determines a chopper product by multiplying the update voltage by the chopper value. A processor directs storage of an element of a hidden matrix. The element of the hidden matrix may include a summation of continuous iterations of the chopper product. A processor updates a corresponding element of a weight matrix based on the element of the hidden matrix reaching a threshold state.