• Maxon Precision Motor India P Limited

Digital Positioning Controller

Maxon Motor’s Digital Positioning Controller EPOS3 70/10 EtherCAT meets the highest demands in real-time positioning of synchronised multi-axis systems. Extremely compact in size, the EPOS3 possesses a wide nominal power supply voltage range from 11 to 70 V DC and delivers a continuous output current of 10 A, during acceleration and deceleration even up to 25 A. Designed for DC and EC motors with a power range up to 700 W, it provides outstanding uniform running for motors equipped with incremental encoders. The EPOS3 70/10 EtherCAT easily integrates as slave into real-time EtherCAT protocol-based Ethernet networks, and, with the provided device description file and device-specific configuration guide, e.g., in a Beckhoff-TwinCAT environment. A multitude of operating modes allows efficient, flexible use in a wide range of drive systems in robotics, automation, and mechatronics. The positioning controller supports a broad bandwidth of encoders. In the typical EtherCAT modes ‘Cyclic Synchronous Position (CSP)’, ‘Cyclic Synchronous Velocity (CSV)’, and ‘Cyclic Synchronous Torque (CST)’, the EtherCAT master calculates the trajectory points and sends the target parameters cyclically and synchronous via EtherCAT network to the EPOS3. Thereby, the corresponding control loops for position, speed, and torque/current take place in the EPOS3, which, in turn, delivers the measured actual values (position, speed, current) to the EtherCAT master. For the actual drive control, the EPOS3 70/10 EtherCAT is equipped with superb motion control functionality. The controller offers comprehensive circuitry against overcurrent, excess temperature, undervoltage and overvoltage, against voltage transients and against short-circuits in the motor cable. Furthermore, it is equipped with adjustable current limitation to protect motor and load as well as protected digital inputs and outputs.