Press Release

July 16, 2014
Expanded range of EtherCAT servo terminals save considerable amount of space in motion systems
New EL7211 Servo Terminal from Beckhoff Accommodates Higher Performance Motors

SAVAGE, Minnesota, July 16, 2014 – With the new EL7211 servo terminal, the EtherCAT I/O system from Beckhoff now offers a complete compact servo drive with an output current of up to 4.5 ARMS – integrated into a space-saving, 24-mm wide terminal housing. This advanced EtherCAT Terminal is available with integrated resolver interface or with the One Cable Technology (OCT) solution. When used in combination with Beckhoff servomotors, users take advantage of an extremely compact, efficient and inexpensive EtherCAT servo system.

The EL7211 servomotor EtherCAT Terminal with integrated resolver interface offers impressive drive power in a remarkably compact design for AM31xx and AM81xx series motors from Beckhoff. Designed with a 24-mm terminal housing, it delivers higher performance, with up to 4.5 ARMS at 50 V DC. This is an increase over the already proven and popular 12-mm wide EL7201 servomotor terminal with 2.8 ARMS.

OCT simplifies installation and reduces costs

As the EL7211-0010 servomotor terminal supports absolute encoders, it is ideal for the AM81xx servomotor series with One Cable Technology (OCT). OCT combines power and feedback signals into one standard motor cable and significantly reduces material and commissioning costs. The integrated electronic identification plate of the servomotors can be read in automatically by the EL7211-0010 EtherCAT Terminal which simplifies motor commissioning.

The fast control technology of the EL7211 servomotor terminal, which is achieved through field-oriented current and PI speed control, is ideal for fast and highly dynamic positioning tasks. The monitoring of numerous parameters, e.g. overvoltage and undervoltage, overcurrent, terminal temperature or motor load via the calculation of an I2T model, offers maximum operational reliability. EtherCAT, as a high-performance communication system, and CAN over EtherCAT (CoE) as the application layer, serve as the optimum interface with PC-based control technology.

Press picture

  • <p>The new EL7211 servomotor terminal is suitable for servomotors up to 4.5 ARMS and the EL7211-0010 variant also supports the OCT connection technology which saves material and commissioning costs.</p>

    Picture caption:

    The new EL7211 servomotor terminal is suitable for servomotors up to 4.5 ARMS and the EL7211-0010 variant also supports the OCT connection technology which saves material and commissioning costs.

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