Compact model of a control cabinet with two machines connected, additional equipotential bonding and fault simulator, to be deployed primarily for all training measures and project work involving the subject of "Testing machinery and processing systems according to VDE 0113". The board contains all necessary components needed to implement hands-on and project-based machine testing with and without fault simulation. The fault simulation options and compact design make this unit predestined for use as a student and trainee exercise system. The console-shaped design permits it to be mounted in experiment frames or for use as a table-top unit.