new multi-axis drive controller, the CU320-2, incorporates current, velocity
and positioning loops for several axes using one processor rather than
individual processors for each drive.
S120 drive system utilizes the CU320-2 as the brains for the drive power
components and can be mounted in a separate cabinet for easy access and
protection against arc flash hazards. Since the CU320-2 can run Sinamics S120
drives in servo, vector or V/Hz control methods, all applications can
standardize on this single offering regardless of the motor type or performance
requirement. Using the Drive CLiQ interface, the CU320-2 control unit is able
to read all the nameplates of the Sinamics S120 drive components, including
motors, making the system setup plug-and-play, and reducing set-up time and eliminating
parameterization errors. The CU320-2 also contains the I/O and interfaces for
the drive system in one central unit.
the CU320-2 it is possible to control either six servo or vector axes, or 12
V/Hz axes from a single control unit. Increased usability of the CU320-2
includes an Ethernet programming port and 1 GB compact Flash for storing drive
parameters, firmware and project documentation. The cost savings of using a
multi-axis controller instead of individual drive control cards is substantial
on drive systems using three or more drives. Having all the parameters and
firmware on the compact Flash card in the CU320-2 means that any component can
be replaced without having to program the new component.
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
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