U1000 Features and Benefits

Yaskawa America, Inc. welcomes you to the U1000 Features and Benefits video.
Video Outline:
• Matrix Technology (0:51)
• Power Conversion Methods (2:20)
o Conventional Drive (indirect)
o Matrix Drive (direct)
• Regenerative Energy (4:37)
o Definition and example of regeneration
o Hold back torque
• Harmonic Distortion (8:25)
o Input current harmonics comparisons
• Other Features and Benefits (12:12)
• Near Unity Power Factor (12:34)
o Displacement power factor vs True power factor
o Standard drive vs U1000
• Greater System Efficiency (13:33)
o Less wiring, smaller footprint, energy savings
o Eco Mode
o Compact design/All-in-one package
• Variable 3-Level Output (16:39)
o Reduction in surge voltages and common mode current
• Expanded Motor Control (17:13)
o Permanent magnet control for SPM and IPM motors
• Capacities and Certifications (17:38)
o 240V and 480V classes available
• Software Features (19:32)
o Common operating features with the A1000 drive
o Power Monitors
• Hardware Features (21:41)
o Standard I/O and removable terminal card
o Available Options
o Serial Communications
This eLM is also available on the Yaskawa America, Inc. - Drives & Motion Division learning management system, "Learn with Yaskawa". Keyword: eLM.U1000.01
training.yaskawa.com/catalog?...
Use Learn with Yaskawa for all your Yaskawa product training needs.
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[@daveogle4239]

Amazing technology. We have used Yaskawa for years and have no issues. Love it!!

[@Cnbrown06]

Best drive out there!! One question though, are there any advantages with the U1000 in regards to bearing fluting?

[@YaskawaAmerica]

Hi Dan, The Matrix Drive's variable three level output provides a voltage waveform that has a 30% on average lower dV/dt to the motor than a conventional drive using a DC bus. The lower dV/dt should result in less bearing fluting. Like all drives, Matrix drive generates its output waveform using a PWM waveform. Therefore, I recommend you continue the same practices for minimizing bearing fluting you would have done with a convention drive using a DC bus.

[@ValentineMichaelSmit]

But with 18 IGBTs as opposed to six, how does it compare to the standard VFD from a pricing standpoint? If you need regen, I can see it possibly being competitive, but if not?

[@YaskawaAmerica]

Hi Kevin -
Excellent question.
As you mentioned, the U1000 has the ability to return regenerative energy back onto the AC power line. This makes it an excellent choice in regenerative applications by eliminating the cost and space of additional regen components required by a traditional drive.
But, to fully understand the cost benefit of the U1000, you have to look at the entire system. In applications where you are trying to get harmonic distortion to 5% or less using a traditional drive, you would have to include a lot of additional components into the system (ac line reactor, harmonic filter, converter). These additional components are not required when using a U1000, thus reducing complexity and extra cost. [time 9:19-11:37]
In any application, the efficiency of the total system will increase when using the U1000 due to its compact design, lower heat loss, as well as reduced wiring and cabinet complexity which shrinks the build time and materials. The U1000 also offers Eco-Mode that senses if the speed reference is 60 Hertz and basically turns itself into an intelligent motor starter by connecting the line directly to the load, producing near zero harmonic distortion. [time 13:37-16:17]
Thanks for watching.

[@wvherpen5377]

Great drive!, but not forget some disadvantages like 30% more Drive-Watt-loss compared to standard drive and the lower motorvoltage (0.87x input) when utilising the 5% THD!

[@AnthonyRauch]

That's when looking at the drive alone.... But how does that compare to a total system loss between the U1000 and an A1000 with 18 pulse transformer, extra bridge diodes, or a drive with an active front end. From what I've seen you cannot compare drive to drive. You need to look at the whole system, and see what the U1000 allows you to remove from the system.

[@YaskawaAmerica]

The matrix drive is a fully regenerative, low harmonic solution. There is no way to compare watts loss of a 6-pulse drive that is neither low harmonic nor regenerative to what the fully regenerative, low harmonic matrix drive solution. To determine the performance capability of a Matrix drive it is better to look at the drive's efficiency. The matrix drive has a typical efficiency of 97.8%, while test data shows consistent efficiency results above 98.4%. The matrix drive is 3+% more efficient than the conventional 18 pulse solution (low harmonics) and 2-4% more efficient than an active front end solution (low harmonics and full regeneration). The efficiency of the matrix drive is on par or better than a standard 6 pulse drive due to the low harmonics and near unit true power factor.
With respect to the motor voltage, we do state that 87% voltage limitation is required to GUARANTEE less than 5% iTHD. Very good harmonic performance is seen when exceeding the 87% limitation. Also, the 87% voltage limitation will effect the motor voltage requirement differently depending on the application. For example, with a 480 VAC line voltage on a VT load you will not reach the limit until 57 Hz, which satisfying most applications. After 57 Hz, the end user can switch to Eco-Mode, an AC line power mode which passes line power to the motor, to eliminate PWM generated harmonics, voltage limitations, and boost drive efficiency.
For more information, please contact us: www.yaskawa.com/pycprd/about-us/global-locations Thank you!

[@vignesharvin2266]

How these 9 bidirectional switches are controlled?

[@rohankumarlal468]

Automatic