PIREG®-C2 EtherNet/IP™

Description of the Controller

Extremely precise and fast measuring technology is essential in order to accurately determine and control the temperature of a heatsealing band. In a sealing system with a PIREG® temperature controller, this is done without sensors by measuring the band voltage and current. This measurement is repeated fifty or sixty times a second. By taking the voltage and current values, the actual temperature can then be calculated from the heatsealing bands resistance characteristics. The primary voltage of the transformer is adjusted by phase-angle control if the measured values deviate from the set point. The resulting change in the current through the heatsealing band leads to a change in the band resistance and thus also its temperature.

This change is measured and evaluated by the PIREG® temperature controller, which then increases or reduces the temperature accordingly. Even minute thermal loads are immediately detected and can be corrected quickly and precisely. Separate, slow-to-respond temperature sensors (e.g. PT100) are thus a thing of the past.

EtherNet/IP™ is the standard for industrial networking in automation. These protocols connect devices, systems, and cells, facilitating faster, safer, less costly and higher quality manufacturing. It easily integrates existing systems and equipment while bringing the richness of digital interface down to the factory floor.

EtherNet/IP™ networks provide plant-wide network systems using open, industry-standard networking technologies. It enables real-time control and information in discrete, continuous process, batch, safety, drive, motion, and high availability applications. The EtherNet/ IP network connects devices such as motor starters and sensors to controllers and HMI devices and on into the enterprise. It supports non-industrial and industrial communications on a common network infrastructure.

The PIREG® controllers are specifically built with the high response and precise control needed for sealing the wide variety of polymeric films used in contemporary packaging.

Precise control assures easy validation because every sealing cycle will be the same, minute to minute, day to day, year to year. High response allows more cycles per minute because the heatseal band can be energized and brought to the exact sealing temperature before the jaw bars close. Precise control eliminates temperature overshoot, extends heatseal band life, and aids in the preservation of anti-stick cover strips.