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Collaboration Delivers Siemens Pitch and Yaw Controls Project

Siemens Sinamics S120 Drive

(MAY 2012)

NDCís Servo Motor and Electronics Divisions recently collaborated to deliver a Reverse Engineering Project involving the Siemens Sinamics S120 Drive and the Siemens Simotics 1FK7 Servo Motor, devices typically utilised in wind turbine pitch and yaw control cabinets.

The Siemens 1FK7 Synchronous Servo Motor is designed to be perfectly compatible with the S120 Drive via the use of specially harmonized power components, the use of Electronic Nameplates and the ability to integrate the units through the DRIVE CLiQ interface system. It is available as a standard motor or as either high dynamic (extremely low moment of inertia) or high inertia (high rotor moment of inertia). Its torque range is 0.18 to 48 Nm and is available with RPMs up to 6000.

The S120 is a LV AC Drive configured for either AC/AC single axis or DC/AC multi axis applications with either V/F, Vector or Servo Control.

Given their interrelated design, application and interest to our customers in the renewables sector, the company made a decision to commission a joint reverse engineering project involving both our electronics and motor R&D divisions in 2011.

Following extensive reverse engineering, modelling and modular testing, NDC has now captured the circuits, parameters, I/O, set up and test data enabling the production of Test - Diagnose - Repair - Test Procedures to support the rebuilding, repair and function testing of these units. This service is now available from our UK Service Centres

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