A safety locking system is provided to detect an open fault or a ground fault condition. The safety locking system includes a central processing unit with an input and an output, and a safety switch electrically connected to the input of the central processing unit. The input receives a low signal when the safety switch is in an enabled state and a pulsed signal when the safety switch is in a disabled state. The central processing unit detects an open fault condition when the input receives a high signal for a time period greater than a threshold time period, and a ground fault condition when the input receives the low signal and the safety switch operates as if the safety switch is in the disabled state.