Three servo drives are used for each delta robot (XYZ movement) with an additional drive used to rotate the tool. Two servo drives are used for the carton carrier, two for the carton outlet and two for the box stop. Four servo drives provide the product movement on the pocket conveyor, another four are used for the product infeed and four for the pullnose (product drop). The six PowerFlex variable-frequency drives are used for carton infeed and product receiving.
Completing the control infrastructure is a safety solution running on EtherNet/IP™ that leverages Guard ControlLogix with Allen-Bradley Safety POINT I/O™, which can be placed locally where it´s needed to achieve maximum flexibility and modularity in production lines. Both the PowerFlex and Kinetix drives also communicate over EtherNet/IP and leverage CIP Safety™ functionality. Safety data is transmitted using the same wires and IP addresses as the motion and control data, an infrastructure which helps to reduce overall system wiring.
As a result of its industry knowledge, technical expertise and in-depth machine design capabilities coupled to the deployment of an advanced automation, motion and safety solution from Rockwell Automation, Gram equipment has developed a high-performance machine capable of processing up to 660 products per minute with up to four different product flavours in each layer.
Capable of handling stick, bars and sandwich formats, the line design is flexible enough to fit existing production facilities and its small footprint efficiently exploits limited and valuable plant real estate.
Gram Equipment is a Rockwell Automation OEM Partner. “The most important advantage we have with respect to our partner status is access to relevant specialists within the Rockwell Automation organisation,” explains Torbensen. “Access to special training is also important, and we have certainly used this in the past. We enjoy a good experience working with Rockwell Automation and its export support is essential; indeed its global support has certainly enabled us to create a competitive advantage. We also enjoy positive cooperation with the Rockwell Automation specialists during programming and product development.”