Product Description:

The EL7031-0030 is a compact stepper motor output terminal manufactured by Beckhoff for the EL EtherCAT Terminals series. As a single-axis driver, it interfaces directly with the fieldbus and supplies controlled current to two-phase stepper motors in small handling or positioning modules. Within an automation cell, the terminal fits onto a common DIN rail and allows the controller to execute precise motion sequences without external standalone drives.

Current control in the EL7031-0030 is performed at 25 kHz, so the switching frequency remains outside the audible range while maintaining smooth torque. The integrated microstep generator supports resolutions down to 1/64 of a full step, and its pulse engine can advance the rotor at up to 8000 full steps/s, enabling rapid indexing on light mechanical axes. A peak phase output of 1.5 A is delivered from the terminal’s power section, which is supplied with 24 V DC and modulated through a PWM stage for efficient heat management. Two motor phases are driven symmetrically, and the design accommodates both bipolar and unipolar winding topologies. This compatibility allows the terminal to operate with motors that use either supported winding arrangement.

The front connector provides 8 connection points that carry the motor leads, sensor lines, and supply rails. The terminal also has 2 digital inputs without input filtering, and their signals are available through the EtherCAT network. One discrete output can actuate a brake or status indicator. Mechanical integration follows the 35 mm mounting rail profile, and the housing is only 12 mm wide, so multiple terminals can be installed in a compact control cabinet. The IP20 protection class is suitable for enclosed panels where exposure to dust and incidental contact is limited. Its single-slot arrangement also preserves space on the mounting rail for additional input and output terminals.