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www.hpmag.co.uk HYDRAULICS & PNEUMATICS October 25 configurations with 15 FSoE frame elements can be used to support additional safety functionality. This allows for more flexibility when setting up the FSoE and allows the user to select as many or as few safety functions as needed. The actual configuration of the KEB Safety Drives is carried out using the certified Safety Editor, within COMBIVIS Studio 6. This is where the safety functionality and limits can be configured. These safety-related settings can be saved and downloaded to other drives via COMBIVIS or via the controller. Current parameters and the error history can be used for system diagnosis. The export function makes it easy to create the required documentation. Safety function blocks With the number of safety functions available in the KEB S6 and F6 drive controllers that can be transmitted via the process data of FSoE, it could be overwhelming to start the programming of the safety PLC. However, KEB’s Combivis Studio 6 provides pre-certified safety function blocks according to the PLCopen Safety standard. These pre-prepared function blocks minimise the programming time of the safety PLC to allow for easy startup while also enabling more complex programs if needed. In addition, Combivis Studio 6 clearly identifies safe and unsafe variables, making it clear which variables can and cannot be used with safety function blocks. Utilising these tools allows for almost limitless options when programming the safety functionality within FSoE and the safety PLC. Conclusion With the increasing desire and requirement of functional safety in new machine designs, FSoE can be a powerful tool for machine builders. Utilising KEB’s range of FSoE devices (drive controllers and safety PLCs) can save time and money in all stages of the machine lifecycle, from initial design through to commissioning and servicing. www.keb.co.uk Fig 2: Safe Motion in KEB drive controllers.