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Maxon Intros MAXPOS 50/5 Positioning Controller
The MAXPOS 50/5 is a positioning controller for highly dynamic applications and receives motion and I/O commands from an EtherCAT-Master.
By Robotics Trends Staff - Filed May 07, 2014

The MAXPOS 50/5 is for applications with high requirements for dynamics, control, precision, synchronization, durability and longevity.

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A positioning controller for robotics and other applications with high requirements for dynamics, control, precision, synchronization, durability and longevity now is available from Maxon.

The MAXPOS 50/5 is a compact EtherCAT slave that can keep pace with motors (such as ironless Maxon DC brushed motors and brushless Maxon EC motors) used in robotics, the medical industry or in specialized machine manufacturing.

It has protective circuitry against overcurrent, excess temperature, undervoltage, overvoltage, voltage transients, short-circuits in the motor cable as well as loss of feedback signal. Motor and load can be optimally protected with adjustable current limiting.

With the latest Field Programmable Gate Array technology, highest control cycle rates can be achieved with minimally short cycle times at the same time. For trajectory planning, sophisticated motion control tasks with a current controller clock speed of 100 kHz and an effective communication cycle time of 100 μs can be achieved with a suitable EtherCAT master.

Distributed Clocks Support as well as the endorsement of CoE (CAN Application Layer over EtherCAT) with Cyclic Synchronous Modes are available. As an alternative, profile-based operating modes for position and velocity are available. The processing power provides field-oriented sinus commutation of brushless motors up to a speed of 200,000 rpm.

Many feedback possibilities permit the use of a wide range of permanent magnet-activated DC motors with encoder and brushless motors with digital Hall sensors and encoders up to 250 watts. The supply voltage range from 10 to 50 VDC and the output power capability of 5 A continuous and 15 A peak current opens a broad application field. Two different encoders can be used simultaneously, allowing for dual loop control of the master to compensate for mechanical backlash and elasticity of the drive system. The spectrum ranges from digital incremental encoders to analog sinus-cosinus incremental encoders up to absolute encoders with SSI, EnDat2.2, or BiSS-C interface. Galvanically isolated I/O’s are on board to enable integration of diverse peripheral components such as limit or reference switches.

 

 


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