In many industrial applications drives need to be monitored for rotational speed or standstill. In the automotive, food, beverage, steel and mining industries, speed sensors are used to reliably detect standstill, overspeed and underspeed of drives or belt break on conveyors. ifm's product range for conveyor belt system monitoring covers belt drift switches, safety rope emergency stop switches, motor switches, compact speed monitors and 3D sensors. The belt drift switch is used to protect the belts from damage or destruction in case of belt misalignment on continuous conveyors. Using safety rope emergency stop switches, vast hazardous areas can be secured. Motor switches are used to reliably switch three-phase motors in direct or reversing operation. Using AS-i, PCBs, rope switches, belt drift switches and other switches can be integrated into AS-i systems. If needed, this can also be safety-related (Safety at Work).