EJ7211-0010 Beckhoff
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The Beckhoff EJ7211-0010 is part of the EJ EtherCAT Plugins series and features one servo channel with two digital inputs. It provides a nominal DC link voltage of 48 V DC, supports a peak current of 9 Amps for 1 second, and operates with a protection class of IP20. The output current is rated at 4.5 Amps RMS, and it includes a brake output rated at 24 V DC and 0.5 Amps.
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Product Description:
The EJ7211-0010 is a single-axis servo drive plug-in from Beckhoff that integrates into the EJ EtherCAT Plugins series for direct placement on an application-specific circuit board. By housing a complete power stage and control logic in the compact IP20 module, Beckhoff positions the unit as an in-cabinet component that delivers closed-loop speed and torque regulation for small DC-supplied servomotors used in distributed industrial automation.
The drive is optimized for a nominal DC link of 48 V DC, yet its hardware remains active down to 6.8 V DC and tolerates surges up to 60 V DC. Continuous phase current is rated at 4.5 A rms, while transient demands can be accommodated with a peak of 9 A rms for one second. A carrier-based PWM stage operates at 16 kHz, minimizing current ripple in the connected motor windings. Two opto-isolated digital inputs accept limit or homing sensors, and one servo channel interfaces to the EtherCAT network for distributed clock synchronization. The module includes a brake output that sources 0.5 A at 24 V DC, uses internal current feedback for protection, and maintains environmental sealing to IP20 without external heatsinks. Its speed controller executes at 16 kHz, matching the PWM cadence for deterministic loop timing.
The remaining performance envelope highlights a maximum rotary field frequency of 599 Hz, enabling high-speed rotors when required. For vertical axes or safety stops, the brake circuit can deliver up to 0.5 A of release current, and reliable function is maintained at installation heights up to 2000 m above sea level. Operation outside a control cabinet is not intended; instead, the plugin relies on the host board for thermal dissipation and for routing the 24 V brake supply, sensor lines, and EtherCAT backplane, concluding the electrical and mechanical integration profile.
