An operator system for a machine, in particular for a beverage processing machine, the system comprising a mobile operator device for the machine, a signal emitter for reporting alarm and/or warning signals and safely glasses for protecting the eyes of a user. The safety glasses have a display system that is designed in particular as a head-mounted display, or a virtual retina display, or a projector and the operator device and/or the signal emitter and/or the safety glasses have a respective data transmitter for exchanging machine information and/or alarm and/or warning signals.