Optidrive Elevator VFD ensures smooth carriage for diners at New Delhi Banquet Hall

View as PDF Adobe PDF


India FlagIndia

Related Products

Optidrive Elevator secures venue’s lucrative business

A problematic issue with the passenger lift  at a prestigious Banquet Hall in New Delhi has been eliminated thanks to the  installation of a dedicated Elevator variable frequency drive from Invertek Drives.

Invertek’s sales partner in India, Tros Autotek PVT Ltd, was approached by one  of the country’s leading elevator manufacturers following reports that the lift  in the newly constructed Banquet Hall, serving eight floors, felt uncomfortable  to travel in and customers were complaining.

A variable speed drive from another  manufacturer had already been installed to control the 7.5kW PM (gearless)  motor, but it was not performing as expected and users were experiencing  uncomfortable jerks when the lift started and stopped, as well as vibrations  during the transition from high to slow speed.

Ashok Patil, Commissioning Engineer at Tros Autotek, takes up the story,  “The entire ride quality was not very good and there was one short floor where  the parking was located which was particularly bad. A jerky elevator ride is  never pleasant, but in this case it could have damaged the Banquet Hall’s  business – diners do not want to be thrown around following a meal!”

The compact Elevator drive from Invertek Drives is specifically designed to  ensure both geared and gearless elevators provide a smooth journey from start  to finish. It benefits from a number of features including short floor  management and Rescue Mode, and five independent S-ramps along with a dedicated  motor holding brake control algorithm allow the system to be fine-tuned.

Ashok continues, “Like all AC Drives from Invertek, the Elevator drive  is very easy to install and commission and it doesn’t take up much space. Our  customer noticed the difference as soon as the new drive was up and running and  is very happy – he said ‘The Elevator is working to my satisfaction in all  conditions.’”

Invertek Drives’ Elevator variable frequency drive incorporates TUV  approved Safe  Torque Off as standard and can be used to control both IM  (geared) and PM (gearless) motors.

It was developed after Invertek identified this specific need as Optidrive  Elevator Product Manager, Justin Walker, explains, “Variable speed drives are  used in a vast number of motor control applications, but they are predominantly  industrial operations where the key objective is usually to save energy and  money. Elevators are different in that the main priority is to provide precise  motor control guaranteed to ensure a smooth passenger journey from start to  finish.

“Optidrive Elevator is designed to address all aspects of lift control  including noise levels where the high motor switching frequency (max 32kHz)  ensures quiet motor operation – vital in buildings such as the Banquet Hall  where the elevator journey must meet the same high standards as the ambiance of  the rest of the interior.”

The New Delhi venue includes two lavish halls, both over 8,000 sq ft and able  to seat more than 500 guests at a time. Offering the highest quality food and  interior, the hall is marketed as a high quality venue for a range of occasions  including weddings.

The elevator must therefore be capable of consistently providing a smooth  journey – even in periods of high usage. This has been achieved since the  installation of the elevator drive as Ashok confirms, “The ride quality  is now spot on throughout the entire journey with smooth start/stop changeovers  and no vibrations."



Find your local office or sales partner, covering 80 countries worldwide

Global Website