HOT RUNNERS | TECHNOLOGY


link to an independent wifi network to communi- cate information on the status of the valve gate control.


Industry 4.0 connectivity Gunther last year developed what it calls a new high-performance hot runner control technology with optimum control characteristics designed to precisely heat the hot runner to the correct temperature throughout while maintaining the system at the target temperature. Its new BlueMaster Pro, offered in four versions for 6 to 24 control circuits, provides intuitive operation directly on the unit as well as through a browser which allows for remote access. This enables users to check the status of several devices on a control console, taking action where neces- sary. The BlueMaster Pro regulator fully supports the Euromap 82.2 standard that defines the interface for data exchange between injection moulding machines and hot runner regulators. It is based on the OPC-UA communication standard for data exchange in industrial automation, which allows for Industry 4.0 connectivity, according to Christoph Munch, Project Manager for Control Technology, The system includes a 7 inch display that is


integrated for the graphical user interface. A setup function helps to configure new moulds. Users can choose from five different screens to select the screen that is best for their application, says Gunther. A diagnostic function detects and corrects any faults in the system instantly. A help function included in the system is context-dependent, meaning that users receive the information they need directly and in plain text. The unit features a robust metal casing through which load fuses can be accessed from the outside. The load and thermal connections can be de- signed according to customer preferences. Gunther also developed the BlueMaster


Compact temperature control units for smaller work settings, such as service workshops or laboratories. BluMaster Compact handles three or six control circuits. The system features adaptive control optimisation, meaning it adjusts the control behaviour to the connected load without user intervention. This ensures stable control even when operating tiny loads. Four operating modes are available per zone, including adjust, control, master and monitor.


Gunther says this more economic unit incorpo-


rates features of a large control unit but is centered on the application area concerned. “For example, the heating function combines a ramp-up and soft


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IMAGE: M KNIGHTS


start, and the PID parameters are self-optimising,” Munch says. Other features include a newly developed control algorithm for improved preci- sion. Automatic control parameter adaptation ensures excellent control quality with no overshoot- ing. The unit’s housing has been kept extremely small, allowing placement on the machine or in the surrounding area to save space. Load and thermal connections are wired to a 24-pin industrial plug, with all fuses accessible from the outside. Gunther also developed an app that can be used to operate a Gunther controller. Munch says the app can be installed on any smart device, with communication taking place via Bluetooth connec- tion. Users can operate the controller from any- where without requiring space on the operator’s side of the moulding machine. A user can operate several controllers at the same time through the app on a single smart device. This can save time in setting operating parameters while reducing the error rate. The app contains a state-of-the-art menu


navigation with graphic temperature displays that are easier for users to interpret. “Users have all key parameters at their fingertips. Furthermore, all measurement data can be uploaded securely to a cloud and used for documentation or more detailed evaluation,” says Munch.


CLICK ON THE LINKS FOR MORE INFORMATION: � www.hasco.com � www.moldmasters.com � www.sise-plastics.com � www.thermoplay.com � www.maenner-group.com � www.synventive.com � www.yudo.com � www.guenther-hotrunner.com


November/December 2023 | INJECTION WORLD 27


Above: Gunther BlueMaster Compact temperature control unit


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