#SPS Complete servo drive in a compact EtherCAT Terminal

Direct connection of servomotor and resolver to a 12 mm EtherCAT Terminal

The new EL7201 servo terminal for the Beckhoff EtherCAT Terminal system integrates a complete servo drive for motors up to 200 W into a standard I/O terminal housing. Integration into the EtherCAT I/O system simplifies cabling and commissioning considerably and reduces spatial 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 brings an I/O solution for highly-dynamic positioning tasks onto the market. The EL7201 servo terminal with resolver interfaces features an exceptionally compact design, while at the same time offers high servo-performance. The integrated fast control technology, with a field-oriented current and PI speed control, supports highly dynamic positioning tasks. Apart from the direct connection of 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.

The servo terminal is fully integrated into the Beckhoff automation software TwinCAT, enabling convenient parameterisation. In the case of third-party masters, parameterisation takes place via the CAN over EtherCAT profile (CoE).

Scalable servo solution

The servo terminals cover a broad range of positioning tasks: from packaging and assembly machines to small robots. With the EL7201 servo terminal, the range of servo drives from Beckhoff becomes even more finely scalable: from the miniature servo drive up to 200 W in the EtherCAT Terminal format to the AX5000 Servo Drive with 118 kW, Beckhoff offers a wide range of motion control solutions.

About Eoin Ó Riain

Sé Read-out iris uaithoibríoch, ionstraim agus stiúradh na hÉireann agus an "Signpost" a áit ar an idirlín! Read-out is Ireland's journal of automation, instrumentation and control and the Instrumentation Signpost is it's web presence.
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