Product Description:

The XSM115-42-502-M-2AA is an AC servo motor produced by Kollmorgen and supplied within the XSM Centurion Servo Motors series. As a rotary actuator for industrial automation, it converts regulated drive current into controlled shaft torque and speed, allowing machine axes to position loads or follow velocity commands with high accuracy. The motor reaches a rated shaft speed of 5000 rpm, making it suitable for rapid indexing or continuous-duty applications that demand moderate peripheral velocity.

The motor provides a steady torque of 42 in-lb, so gear ratios or direct couplings can be selected to match load inertia without exceeding the allowable drive current. The back-electromotive-force slope is 52 V/krpm; the drive must produce this counter-voltage plus sufficient overhead to maintain speed regulation. The stator windings are designed for a bus voltage of 230 V. Their electrical time constant is influenced by an inductance of 5.6 mH, which affects the current-loop bandwidth and amplifier filter design. These electrical values help determine whether a compatible drive can supply the required current while preserving stable speed and torque control throughout the intended operating range.

A rotor inertia of 0.00026 kg·m² limits acceleration demand on the drive while storing enough energy for smooth rotation. The output shaft measures 19.0 mm in diameter, is machined without a keyway, and is tapped with an M6 × 1.0 mm thread to a depth of 16 mm for bolt-on couplings. When the optional 24 V holding brake is included, the overall motor length increases by 1.91 in, which must be considered when planning installation and gear-train clearance. A torque constant of 0.41 N·m/A links commanded phase current to delivered mechanical torque, helping motion controllers scale current limits against the winding resistance of 1.0 Ω. The multi-turn feedback device reports absolute shaft position, allowing the control system to retain position information across operating cycles.