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Customizable motor-mounted module brings next-gen industrial automation

Posted: 25 Nov 2010  Print Version  Bookmark and Share

Keywords:motor-control module  industrial Ethernet 

STMicroelectronics (ST) unveiled the SPIMD20 module, a customizable high-end motor-control module which is compact enough to mount directly on the motor, and at the same time allows for a connection through industrial Ethernet. The SPIMD20 module is designed to support industrial solutions such as multi-axis robotics, conveyors, packaging machines, and process automation equipment.

The SPIMD20 can handle brushless 3-phase motors up to 2kW, and is suitable for a number of industrial applications. Designed in collaboration with motion-control specialist Robox, the module combines ST�s dependable high-performance semiconductor technologies, consisting of 1200V/40A IGBT power switches, and the TD352 gate driver. Two STM32 microcontrollers offer powerful processing engine capability for motor control and networking functions. Furthermore, a real-time communication interface supporting protocols such as EtherCAT and CANopen DS402 is also provided. Basic firmware supporting network connectivity and featuring PWM driving, current loop and speed-loop execution synchronized to the fieldbus is likewise available.

The module is firmware and logic customizable, enabling designers to fully control the motor-control algorithm and type of Ethernet fieldbus. Group VP and General Manager, Systems Lab & Technical Marketing, Industrial and Multisegment Sector at ST, Matteo Lo Presti cites, �The SPIMD20 combines custom configurability, high performance, and the convenience of distributed control for the first time in an off-the-shelf module.�

The SPIMD20 eliminates the usual project overhead of bringing up a custom drive. By mounting the 165 x 60 x 26mm module on the motor, designers also can distribute control for multiple motors.

The key features and benefits of SPIMD20 include: 800V maximum DC supply voltage; hardware Safe Torque OFF; safe architecture meeting IEC 61800-5-1; serial programming interface; position feedback via resolver or digital encoder; vibration analysis and thermal sensing; and on-board Flash of 2 Mbytes plus support for removable memory card.

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