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NDC Meet The Challenge of Otis OVF20 and Kone V3F16 Repairs

NDCís dedicated R & D team have been busy finalising the latest breakthroughs in lift drive engineering. The latest additions to the already impressive list of OEM drive successes are the OTIS OVF20 and KONE V3F16 Inverters.

Those familiar within the lift industry will already know that these units have provided plenty of challenges for some time now, and will be pleased to know that NDC have worked hard to ensure that there is now a solution to these problems.

NDC’s R & D Engineering Manager, outlines the problem:
“These OEM-designed drives were produced to sit within their  own specialised systems, fully integrated with the lift’s control system and therefore the drive cannot be removed and tested on the bench without a significant amount of reverse engineering and development. Many independent repair companies have claimed to be able to test these units, but we know that in reality the most that has been done is to apply power to the unit after a repair attempt without the ability to actually simulate the running of the drive. This means that the unit is often returned to the lift and fails immediately. At NDC we now have a fully integrated test system consisting of the Test Tool, Motor, Encoder and Dynamic Braking Resistor along with a specifically designed switching system to take care of the complex floor-sensing arrangement”

A significant amount of resources have been applied to this project and allied to our Test-Diagnose-Repair–Test Solution, we now have the capability to service-exchange these units to assist with critical and often commercially sensitive breakdowns.

The service has now been rolled out nationally as NDC’s in-house technical knowledge management system allows us to take the findings of the R&D project and distribute the information through an IT platform to our other branches throughout the UK. We can then replicate the testing systems nationally.

In addition to the success on the Otis OVF20 we have also created a full test facility for the KONE V3F16 range of drives, again with a Service Exchange option.

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