Page 8 - Industrial Technology EXTRA 1st Febraury 2021

for complicated procedures and the unavoidable
downtimes associated with identifying the cause.
The U1000 already features an integrated EMC
filter removing the need for external components
such as DC reactors or LC filters. Nevertheless, the
space requirements are still up to 50% with
conventional integrated solutions with sinusoidal
input and regeneration. It also features a built-in
SIL3 STO input to allow for high machine safety
requirements and Yaskawa also offers options for all
common fieldbuses making connection to EtherCAT,
Powerlink, Profinet, Profibus, Ethernet IP and other
systems extremely straightforward.

The future
additional regenerative unit and like all Yaskawa TFollowing testing of the latest U1000 matrix
1000 Series drives the U1000 is designed for 10 converters at new subway station locations where
years of maintenance-free, continuous operation. space is even more limited, the converters have
been duct mounted on the side wall of control
Application specific benefits cabinets meaning the cooling module is on the
The regenerative energy that can be fed back into outside. The device is connected to the MVG control
the system to meet other needs in the building such system so that current operation status can be
as lighting can be a significant benefit, however this monitored in real-time, providing reliable test data
was not the main reason that prompted MVG’s to at all times.
select the U1000 for their escalator application. Based on initial results from these new
More importantly the U1000 removed the need for applications, Mario Princip is satisfied with the
regenerative resistors, greatly simplifying the solution confirming, “We’ve addressed the main
cooling, or ventilation of the system. Another issues at these even more demanding sites and the
advantage of the Yaskawa system was the upkeep Yaskawa U1000 is operating just as we’d hoped”.
of the grid quality during regeneration. www.yaskawa.eu.com
The line currents during operation of the
U1000 are nearly sinusoidal in both motor
and regenerative mode and harmonics are
reduced to a minimum. Whilst this reduces
losses in network components, such as
transformers, cables and lines, it improves
the efficiency of the whole system.
Furthermore, this significantly reduces
potential interference with other system
components which in turn helps to prevent
failures and subsequently removes the need

February 2021 • INDUSTRIAL TECHNOLOGY EXTRA • p8