EC: EL7201 Servo Terminal
Motion control – Servo drives: The Beckhoff EL7201 terminal integrates a complete servo drive for motors up to 200 W into a standard 12 mm I/O terminal housing. This is a Control Engineering 2012 Engineers’ Choice finalist.
To introduce servo technology solutions in the smallest possible form factors, Beckhoff Automation has released the new EL7201 servo terminal for the EtherCAT Terminal system. The EL7201 terminal integrates a complete servo drive for motors up to 200 W into a standard 12 mm I/O terminal housing. Integration into the EtherCAT I/O system considerably simplifies cabling and commissioning while reducing cabinet size requirements and costs. This cost- and space-saving servo terminal expands the range of compact drive technology solutions for the Beckhoff I/O system: as an addition to the popular terminals for stepper motors and ac and dc motors, Beckhoff now offers an I/O solution for highly-dynamic servo positioning tasks to the market.
The EL7201 servo terminal with resolver interfaces features a compact design while offering high servo performance. The integrated fast EtherCAT control technology, with field-oriented current and PI speed control, supports highly dynamic positioning tasks. Apart from the direct connection of a motor and resolver, the connection of a motor holding brake is also possible. Permanent magnet synchronous motors with a rated current of up to 4 A can be connected as loads. The monitoring of numerous parameters, such as overvoltage and undervoltage, overcurrent, terminal temperature, or motor load, offers maximum operational reliability. Modern power semiconductors guarantee minimum power loss and enable feedback into the dc-Link when braking.
Beckhoff Automation
Return to the list of the 2012 Engineers' Choice finalists.
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