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The EBS-HS-2 utilizes sensors, cables, and I/O stations from Turck to deliver its integrated capabilities. “As you get into a more complex machine like this one, precise control of air pressure and vacuum become more critical than ever,” says Zurlinden. “Turck has some slick little air pressure and vacuum sensors that fit nicely into our system.”
The Turck I/O network includes one BL20 modular I/O bus terminal system and multiple AIM (Advanced I/O Module) stations. “The C400 controller isn’t intended to have a lot of onboard I/O,” says Zurlinden. “If you need more I/O, you buy fieldbus I/O, and that’s where Turck came in. The BL20 is IP20 rated, perfect for inside our controls cabinet enclosure. The AIM stations are IP67 rated, which means they’re capable of withstanding rugged washdown conditions. So they’re mounted out on the machine. It permits shorter cable connections between a given I/O point back to an AIM station and then a fieldbus trunk line going around the machine and connecting to all those AIM stations.” At the end of the day, the Turck components optimize the transfer of inputs into and outputs out of the C400 controller.
Zurlinden also notes that both the BL20 station and the AIM stations are available in network protocols most often required by Pro Pack customers—DeviceNet™ and Profibus™—so that the machines can be designed to suit the manufacturing environment in which they’ll function. “The fact that Turck offers many products with many different network protocols makes it easy for us to use them on our equipment,” adds Zurlinden.
Pro Pack produces approximately 20 pieces of equipment each year, each with subassemblies on the machines to give users control and diagnostics at the point where they’re needed most. According to Zurlinden, a real advantage of integrating these stations on the machines is the reduction of in-house assembly and start-up time at the customer site.
“Networking our I/O reduces our assembly time with minimal conductor terminations,” says Zurlinden. “We also provide service and start-up support to help our customers with installation, along with training employees about how to operate and troubleshoot our machines. A networked system offers fewer wires and simpler troubleshooting.”
Thanks to Turck’s flexibility in manufacturing, Pro Pack has also been able to meet custom needs. Turck was able to provide the company with an encoder with a custom cable connection for its Pro Print/EBS-HS-2 machine. A hollow-shaft encoder with a d-sub style connection was required for the integrated printing system within the machine, and Turck was able to respond to the request easily with minimal upcharge and minimal lead time.
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