Posted to News on 12th Nov 2008, 16:30
Lenze 9400 servo drives control curved motion profiles
Lenze is extending the functionality of its 9400 servo range, with uprated power capacity and curve generation software. For applications with power requirements above 75kW that call for a low overload capacity, the continuous power ratings of the 9400 drives have been increased by up to 40 per cent. This enables saving to be made in both cost and cabinet space. In addition, the ability to generate curved motion paths, typically to replace mechanical cam-based motion, is increased and now 256 cam profiles can be stored in the drive.
Certain types of machinery require servo performance in terms of fast response and precise speed holding, but do not need high peak torques. An example is extruder machinery. For powers above 75kW and up to a maximum of 420kW, the 9400 servo drives have uprated continuous capacity with reduced peak torques. This increase is available on standard drives at no extra cost. As well as lower purchase cost, customers gain with smaller panel sizes and typically 1kW of reduced power losses.
Servo drives in applications such as packaging or pick-and-place machinery can replace mechanical cams. The same complex curved motion paths can be achieved without wear and at high speeds. The Lenze 9400 servo drives, across the full range from 0.37kW to 420kW, new benefit from cam software that permits a number of profiles to be stored for different machine settings. Up to 256 cam profiles can be stored with up to 50 interpolation positions per cam. Alternatively fewer profiles are possible with interpolation up to 16384 points for complex and highly accurate paths. Lenze L-force Engineer software is said to make data import and automatic path generation easy.
The 9400 servo range is part of the Lenze L-force product portfolio. Drives are available for single- or multi-axis configuration with two positions for optional plug-in communications that can include real-time fieldbuses such as Profinet and Ethernet Powerlink (EPL). A further plug-in position enables drive safety functionality such as Safe Torque Off and Safe Stop to be incorporated within the drive. Follow the link for more information about Lenze 9400 servo drives.
