Our Elevator variable frequency drive gives Mrs Demetriou new mobility in her twilight years

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MRS DEMETRIOU

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Optidrive Elevator provides peace of mind for grandmother’s family

While most variable  frequency drive installations focus on industrial applications, they’re  sometimes used to bring tangible benefits to people – as demonstrated by this  installation in Cyprus.

An Invertek Drives Optidrive Elevator installed in a  machine-room-less (MRL) gearless home-lift system has given Mrs Demetriou, an  elderly, disabled Cypriot grandmother, the freedom to move safely and  independently around her family’s four-storey home...

 

When the Demetrious family decided that they needed  to install a lift to help their grandmother, the solution had to be supremely  safe, comfortable, easy to use and quiet at night. It also had to be easy to  program and allow safe, simple evacuation if there was a power failure.

The answer, in the form of an MRL lift, was made  possible by the combined expertise of lift control-panel manufacturer StamTec and Invertek’s  dedicated elevator drive, Optidrive Elevator, supplied by Invertek’s Greek sales  partner Automation Experts.

Of particular interest for this project is the  Optidrive Elevator’s renowned ability to deliver smooth carriage through its  use of no less than five independent S-shaped acceleration ramps. Along with a  dedicated motor holding brake control algorithm, this allows fine tuning of the  system by installers. Then there are Optidrive Elevator’s compact external  dimensions and factory parameter settings that are well-suited to fast, easy  installation and setup of simple elevator applications.

Optional incremental/EnDat/Sincos encoder feedback  interfaces allow compatibility with a wide range of motors, while Invertek's  renowned motor control capability ensures maximum ride comfort under all  conditions. And short floor operation, coupled with a high motor switching  frequency (max 32 kHz), provides the quick, smooth, quiet journey that’s  perfect for Mrs Demetriou as she moves around her home.

Theodore Amiridis, Automation Experts’ Technical  Director and Business Development Manager for North Greece describes the  very human scale of the challenge. He starts with how Invertek’s proven  technology contributed to Mrs Demetriou’s new mobility and her family’s peace  of mind.

“For over two decades, Thessaloniki-based StamTec  has been a leading manufacturer of lift control-panels in Greece. As well as  selling into its home territory, StamTec also sells into the Balkans, the  Mediterranean Islands and Arab countries.

“As an experienced sector player, StamTec  understands the importance of specifying the most reliable, versatile  components. For variable speed drives, that means Invertek. For this particular  application, and the new mobility enjoyed by this Cypriot grandmother, it meant  the proven Optidrive Elevator with IP20 rating, three-phase input and output,  and 5,5kW capability working with a closed-loop EnDat PG card.”

 

For the Demetriou family, the new elevator has  transformed daily life in their multi-level urban home.

Theodore Amiridis adds: “Since installation of the  elevator, Mrs Demetrious can easily navigate her home and enjoy all its  facilities despite her disability. Of course, other family members can use the  lift too, which is useful in the large four-storey property.

“The elevator’s near-silent electric operation also  minimises disturbance at night. And it’s fast and comfortable, making it easier  for Mrs Demetrious to enjoy her twilight years. The smooth operation is  achieved through the lift’s closed-loop mode with Endat encoder feedback and  the S-ramp acceleration ramps.”

Thanks to StamTec, Invertek Drives and her family’s  vision, Grandmother Demetriou is in safe hands even when using the lift on her  own. That’s because, if the lift loses communication with the encoder, it can  operate safely and effectively in PM (permanent magnet gearless) open-loop mode  too.

Such details may be lost on Mrs Demetrious, but  what she and the rest of the family can be sure of is more independence than  ever and round-the-clock peace of mind as they enjoy their home. 

Find out more about Optidrive Elevator.

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