Product category:
Industrial Drives/Controls
News Release from: WEG Electric Motors (UK) | Subject: CFW-11
Edited by the Engineeringtalk Editorial
Team on 02 May 2008
Variable frequency drive suits large
motors
Improved plug-and-play philosophy for three-phase induction motor control is one of many important benefits of WEG's CFW-11 variable frequency drive (VFD).
WEG's CFW-11 variable frequency drive (VFD offers plug and play three-phase induction motor control The modular drive, brings design benefits of 300 to 2000kW motors (380 to 690V), with added versatility for the operation of these larger motors
This article was originally published on Engineeringtalk on 18 Mar 2002 at 8.00am (UK)
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Norton Petry, Product Development Manager at WEG Automation, said: "The CFW-11M has a modular concept where one can use power modules in a book format to create a whole range of powers using standard parts".
"The Power Modules can be mounted side by side, allowing a very compact construction for high-power drives".
By applying this technology to 400kW basic power modules, WEG has enabled the CFW-11 to offer VFD control from 300 to 2000kW.
Up to five modules in parallel may be driven by one CFW-11 control module.
The compact dimensions make it easy to locate in a new or existing plant and the CFW-11 modular drive control panel is available either built by WEG (AFW-11M) or as a kit for completion by the customer or WEG agent.
The removable human/machine interface (HMI) handheld control panel, with its mobile phone-inspired function and jog-selection keyboard, is one way the operator can communicate with the drive.
The CFW-11 has a USB port on its front panel, allowing the updating of drive firmware through connection with a laptop.
Alternatively, the CFW-11 is compatible with Profibus, DeviceNet, CANopen, Modbus and Ethernet communication protocols, for factory-wide DCS operation.
Rapid upgrading and customising of the CFW-11 are facilitated by the plug-and-play modular click-in design of the accessory units which are inserted inside the control casing.
The CFW-11 automatically recognises and configures the accessory and option units for accurate and safe installation while eliminating the time and possible errors of manual configuration.
The customer insertable, modular units include I/O expansions, encoder interfaces, memory card and communication protocols.
The CFW-11 also features normal and heavy-duty ratings for rapid optimal load-type adaptation.
Further customer value offered by the CFW-11 includes the internal PLC function,which eliminates most requirements for an additional external PLC device.
The Soft-PLC function suits applications like winding, multipump, cascaded control, cranes or elevators.
Users can develop their own applications using high-level ladder block language.
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