Small yet powerful servo drive
A servo drive small enough to be placed onto a moving load – such as a robot, automated guided vehicles (AGV) or aerial drone – has been launched by Elmo Motion Control.

The company says that the Gold Twitter Nano 80A/ 80V drive, which weighs just 20g and has a volume of less than 13cm3, is the world’s smallest drive, yet it offers 5000W of continuous power.
The new drive is suitable for motion control applications with a high power demand in a restricted space. Applications include automated production machinery, robots, AGVs, aerial drones, medical bionics and any application that requires high performance servo operation.
The drive is certified to IEC 61800-5-2, SIL-3. The Gold Twitter Nano also offers advanced networking capabilities based on EtherCAT and CANOpen.
“Designing and manufacturing a powerful drive such as the Gold Twitter Nano means using highly innovative technologies to meet the challenges involved,” says Gary Busby, UK managing director of Elmo Motion Control.
The Gold Twitter range of servo drives uses Elmo’s Fast and Soft Power Switching Technology (FASST), giving over 99% efficiency and negligible electro-magnetic interference (EMI).
“Our innovative technology has allowed us to achieve the most advanced servo performance, offering very efficient power conversion combined with smart thermal control,” says Busby. “We also meet strict EMI standards, design in a high degree of ruggedness to withstand tough environmental conditions, and comply with very high safety standards, all with the highest levels of quality and reliability.”
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