These bus terminals integrate a compact motion control solution for small stepper motors up to 200W, eliminating the need for remote amplifiers. At a size of 12mm, the KL2531 covers the lower performance range, and is designed for integration into a 24VDC control voltage system. With a peak current of 1.5A per phase, a large number of small drives and axes can be integrated. The KL2541 modules offer higher performance comparable to that of small servo drives, says the vendor. With a peak current of 5A, they can generate torque of 5 Nm in conjunction with a standard stepper motor. The supply voltage of up to 50VDC enables high speeds with impressive torque and mechanical output (up to about 200W), the vendor says. The KL2541 has an integrated incremental encoder interface—yet is only 24mm wide.