Abstract: A frequency converter and a method in a frequency converter. The frequency converter is adapted to drive an electrical load, wherein the frequency converter comprises a communications interface through which the frequency converter is adapted to receive external requests to change input power of the frequency converter, means adapted to hold one or more conditions for allowing to change the input power of the frequency converter, and processing means adapted to change the input power of the frequency converter upon receipt of the external request in the limits set by the one or more conditions. (FIG.

Abstract: A frequency converter and a method in a frequency converter. The frequency converter is adapted to drive an electrical load, wherein the frequency converter comprises a communications interface through which the frequency converter is adapted to receive external requests to change input power of the frequency converter, and processing means adapted to change the input power of the frequency converter upon receipt of the external request in the limits set by the one or more conditions.

Abstract: The invention relates to a central data collection apparatus. The central data collection apparatus comprises an interface for receiving data relating to devices arranged at a plurality of different installation sites. A data storage stores the data received via the interface. A data distributor is configured to receive a request for data regarding a specific device identified in the request from a user equipment, to access the user credential storage for determining the access rights of the, to determine what, parts of the data regarding the identified device the user is authorized to receive and to allow the user equipment to access the part of the data the user is authorized to access.

Abstract: A method for creating a cutting plan for a strip-like material for maximizing a quality yield of the process is invented. In the method a cutting plan for a strip-like material is made based on end-product data, and the strip-like material is driven at a production speed in a manufacturing machine or in a finishing machine, and strip length data is recorded. A chart of the strip-like material characteristics is generated and stored in a memory. The recorded strip length data and the chart of the strip-like material characteristics is calibrated with calibration data in a winding process, and during a set change in the winding process the cutting plan for the strip-like material is optimized for maximizing a quality yield of the process based on the end-product data and the calibrated chart of the strip-like material characteristics, and a revised cutting plan is created from the optimization result.