Product category:
Hydraulic equipment and fluids
News Release from: Moog Controls | Subject: Digital interface valve
Edited by the Manufacturingtalk Editorial
Team on 21 January 2008
Interface hydraulic valve has digital
control
Interface valve is an advanced hydraulic valve with microprocessor-based electronics and various fieldbus interfaces and is easy to install.
The Moog digital interface valve (DIV) is an advanced hydraulic valve with microprocessor-based electronics and various fieldbus interfaces This generation of valve offers configurable functions that enable users to define the dynamic behaviour of the valve and adapt its characteristics to particular applications, while providing high-precision digital control of pressure and flow
This article was originally published on Manufacturingtalk on 8 Aug 2007 at 8.00am (UK)
Related stories
Digital interface valve enhances roll levelling
A machine that levels coiled high strength low carbon steel strip has a hydraulic digital interface valve to individually control seven levelling roll positioning axes and improve levelling quality.
Moog drives package is multi-axis
Moog has introduced an advanced multi-axis motion control and servo drive package, which combines ndividual MSD servo drives with an MSD motion controller for up to 30 axes.
The DIV also benefits from standard functions, for example as follows.
* Diagnostic capabilities.
* Integrated monitoring of key environmental and internal characteristics * Valve parameter modification.
Further reading
Cartridge valve permits high-density fitting
The cartridge design permits high-density fitting for applications where multiple valves are required to be mounted on a single manifold or in industries where weight and space are at a premium.
Hydraulic technology for model testing in Norway
Moog Controls has recently supplied advanced hydraulic technology to Marintek, a Norwegian Marine Technology Research Institute, located in Trondheim, Norway.
Machine breakdown repair saves weeks of downtime
Moog fitted a new controller to an Ovenable Board packaging machine for Coppice Alupack, saving a possible six-weeks of downtime.
* Inter-company remote access or on-site access.
The ability to download parameters via the field bus connection or directly from the PLC program enables optimum tuning of valve parameters during the machine cycle, even while the machine is operating.
Even with advanced electronics on board, said Moog to manufacturingtalk.com, the digital interface valve is designed to withstand the difficult temperature and vibration requirements of demanding applications, being shock and vibration resistant to 60G and 30G respectively.
Decentralisation allows tasks to be assigned to local devices rather than the main control device, providing customers with increased flexibility and functionality.
By conforming to the CANOpen, Profibus or EtherCAT protocol the DIV has a clearly defined data-exchange mechanism, so compatibility between conforming devices is assured, said Moog.
* Lower installation costs - the DIV has lower installation costs due to a serial-wiring scheme, which reduces the amount of wiring and improves noise immunity.
With industry driving towards open architecture to future-proof capital equipment investments, Moog's developments lead the hydraulics sector with clearly defined data-exchange mechanisms and published device profiles.
To make the product easy for customers to use, Moog engineers developed a Windows-based graphical user interface to allow users to change parameters or characteristics of the valve without detailed knowledge of fieldbus.
This allows designers to focus on the application.
Also used for performing detailed diagnostics and fault finding, this software provides flexibility and convenience for commissioning and service, as well as simplified maintenance.
The DIV is available with a linear variable displacement transducer (LVDT) sensor integrated for velocity and position control of the valve spool as well as an option for an integrated pressure sensor for pressure control.
Moog application engineer, Nick Delport, said: "Distributed servo control through a fieldbus interface is the future of motion control and the DIV's embedded digital microprocessor is the foundation for enhanced functionality and flexibility.
The digital interface valve is a platform on which future generations of high performance servo valve control will be based".
Applications for this type of product include paper mills (plungers, pressure control and paper cut movements) and in heavy industry such as optimising machine performance by co-ordinating axis, and changing the dynamic parameters of the valves to optimise machine performance, without manually recalibrating the machine.
* About Moog - Moog's Industrial Business Unit designs and manufacturers high performance motion control solutions combining electric, hydraulic and hybrid technologies with expert consultative support in a range of applications including plastics, metal forming, textiles, power generation and simulation.
We help performance-driven companies design and develop their next-generation machines.
Moog's Industrial Business Unit, with 2006 sales of US$315 million and 26 locations worldwide, is part of Moog, Incorporated.
In 2006, Moog Inc's revenues amounted to US$1.3 billion. Request a free brochure from Moog Controls ...
• Moog Controls: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
Search the Pro-Talk network of sites
