Brushless motor with right angle gearhead and position control

A common problem faced when using 3 phase AC motors in multiple lane packaging equipment and conveyor systems is motor drift. The Sydney company was using a 415V AC 3 phase 0.37Kw motor that had a 1380 rpm output driving through a 115:1 right angle gearhead. The motor is driven by a PLC which commands 60.5mm moves on a conveyor but without a true absolute closed loop positioning system, over the course of the day the AC motor system would develop a drift of a few millimetres with respect to other components on the machine. The AC motor and drive system employed was using a relative step positioning system that on paper was able to deliver the required position resolution, however it is the motor and drive system accuracy that leads to drift or offset when hundreds or even thousands or repetitive moves are carried out over the course of a day. maxon were able to offer a solution using a brushless DC servo system and a DC motor position controller that conducts absolute movement based on high accuracy optical encoders. The motor is a 3 phase 60mm diameter 0.4Kw 48V brushless DC type fitted with an 81mm 93:1 180Nm planetary gearhead and an additional 1.5:1 stainless steel right angle transfer gearbox rated at 238Nm peak. The three phase DC motor controller EPOS2 (easy to use motor positioning system) has the unique feature of being able to conduct absolute moves measured directly from the load by using a dual encoder loop function; Whereby the position is taken from a load mounted absolute SSI encoder and high speed motor regulation is taken from a second encoder mounted directly to the rear shaft of the dual shaft motor. A stand-alone motor control system was required via a customised keypad. To set up the motor control system with an application unique human machine interface maxon recommended the local Sydney company Robotic Systems who have in-depth knowledge of mechatronic systems. Robotic systems chief engineer and CEO Adam Amos has conducted many successful custom motor control implementations using maxon motor products. The successful relationship between Robotic Systems Pty ltd and maxon motor creates a full solution service from hardware, firmware, and software to programming and support.

Contact Brett Motum from maxon motor Australia Pty Ltd on +61 419 020 233 or Adam Amos from Robotic Systems Pty Ltd on +61 424 624 578

© 2013 by maxon motor Australia Pty Ltd




About maxon motor Australia

maxon motor is the world’s leading supplier of high-precision drive systems. More than 40 years’ experience, constant innovation, top-quality products and competent customer service make maxon motor a reliable partner in the drive technology sector. We are driven by your specific requirements. The product range incorporated in the modular system is comprehensive: Brushed and Brushless DC motors with the unique ironless maxon winding Flat motors with iron cores Planetary gears, spur gears and special gears Sensors (encoders, DC tachos, resolvers) Servo amplifiers, position controllers and control electronics High-tech CIM and MIM components Customer specific drive solutions. maxon motor is a Swiss company headquartered in Sachseln (Central Switzerland) that employs more than 2000 staff worldwide. With 14 sales companies based in over 30 countries, sales partners in another 10 countries and with six production sites, maxon motor are able to provide locally-based and competent customer service. maxon motor helps provide innovative solutions at competitive prices for numerous applications in various markets, such as Medical technology, Industrial automation and robotics, Aerospace industry, Automotive industry, Communication, Consumer applications, Inspection and Instrumentation and Safety engineering. maxon motor Australia is based in Mt Kuring-Gai NSW and our staff will be happy to help you with all your DC motor and technical enquiries.

One response to “Brushless motor with right angle gearhead and position control”

  1. indian email database says :

    I am continuously searching online for articles that can help me. Thank you!

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