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Product News LIVE@ Torque range for synchronous motors expanded Bonfiglioli presents six new sizes of its BMD synchronous motor series. The series of brushless motors covers the torque range of 1.7 to 45 Nm with a supply voltage of up to 400 V. The sizes are available in the speed range from 1500 to 6000 min-1. The motors are equipped with different feedback options so that they can be adjusted to applications such as resolvers, EnDAT logs or Hiperface. The motor dimensions have been reduced to improve torque density, dimensions and dynamics. The magnets used offer high acceleration values and a high overload capacity without demagnetisation risk. www.bonfiglioli.com Frequency converter supports even PM motors Danfoss VLT drive technology was brought the success of the VLT 2800 on the market in the frequency converter VLT Midi Drive. New functions include support of PM motors, integrated safety functions and setting of parameters via storage module. Marathon tests for aircraft parts An aerospace componentry dynamometer test rig that can run continuously for 3,000 hours and longer has been built by Manchester’s Automated Technologies Ltd. Among the key components are a TorqSense transducer, made by Sensor Technology of Banbury, and a variable speed drive made in mid-Wales by Invertek. With the core requirement for 3,000-hour continuous testing (day and night for over four months), the engineers knew that the rig would have to be very robust and that simplicity would improve the overall reliability. The basic design is that a motor drives the test piece against a load in a closed loop control system and the TorqSense provides feedback by measuring its performance in terms of torque and speed. Variations in the performance data over time indicate the level of wear and tear the component is experiencing, and from this safe working lifetime profiles can be developed. The data is logged to a database to allow trending to be mapped. Also a web based real-time display allows live parameter viewing remotely. www.sensors.co.uk Frequency converter offers on-demand control functions All high-end frequency converters support all motor types up to synchronous reluctance motors. The automatic motor adjustment is able to quickly evaluate SynRM drives and operate them in an optimised manner. The device offers all important field buses and has pluggable control and power terminals up to 7.5 kW, a serial brake control and integrated STO. www.danfoss.com/vlt Rockwell has expanded its PowerFlex 520 series and introduced its new PowerFlex 523 frequency converter with on-demand control functions. The motor control was designed in line with demands in order to speed up installation for users. Mechanical engineers can upload and download drive configuration files via a standard USB connection. For more complex networking, a dual port EtherNet/IP adapter is available as an option. This module supports ring topologies and offers DLR functions (Device Level Ring), which can increase network stability and machine uptime. www.rockwellautomation.com 26 MDA Technologies 2/2015
Soft starter – comfortable operation The new soft starter series PSTX by ABB offers complete motor protection in a single device and works reliably even at load and mains irregularities. PTC and PT100 connections, rotor block and under-load protection, fault current, over- and undervoltage protection secure the motor more comprehensively than ever before. The new power limitation versions standard, double and ramp permit complete control of the motor during start-up and safe motor operation in weaker mains. When the full ramp voltage is reached, the PSTX activates its integrated bypass. This saves energy and reduces the device’s heat development. The torque control offers an efficient way of starting and stopping pumps - without water penetration and pressure surges. www.abb.com R+W develops metal bellows clutch range Metal bellows clutches are used for torque transfer and as offset compensation element in applications of general engineering. In the area of metal bellows clutches, R+W Antriebselemente (Germany) is continually increasing its product and version offer. The different In the event of ... ROBA ® -topstop ® Securing instead of improvising Visit us at: HANNOVER MESSE Hall 25/Booth D28 model series (MK, BK, BX) of the torsion-stiff and play- and maintenance-free metal bellows couplings are available from 0.05 to 100000 Nm and in different connection options. For example, specific series are available, e.g., in specifically balanced designs up to 120000 min -1 as well as special clutches for torques up to 850000 Nm and more. “As manufacturer of percision machining machines, we place high demands on quality, reliability and safety. This is why, for 25 yeras, we have trusted in ROBA-stop ® safety brakes by mayr ® power transmission.” Klaus Bauer, Head of Design and Development Machine Tools Factory, WALDRICH COBURG GmbH Attention! Safety-crictical axis. Use only ROBA-stop ® -brakes. www.rw-couplings.com D-87665 Mauerstetten, www.mayr.com your reliable partner
