8LSN56.EA030D000-0 by B & R Automation

The 8LSN56.EA030D000-0 is a three-phase synchronous motor from B&R Automation in the 8LS Synchronous Motors series. Designed as a compact rotary actuator, it converts drive current from a servo amplifier into controlled torque and speed for automated handling, packaging, or positioning stages. The 8LSN designation places it in a family that favors increased inertia variants, which can help match demanding mechanical loads without external flywheels. This type of motor is commonly used where repeatable motion, quick response, and steady torque are needed across frequent start-stop cycles.

In terms of mechanical interface, the mounting flange measures 142 mm, so the stator bolts directly to machine frames using ISO square layouts. The rotor can reach a constant speed of 3000 rpm, which sets the normal operating speed range for servo applications. Position feedback is delivered by an Inductive EnDat sensor, and protocol revision EnDat 2.1 supports electronic identification with fine interpolation in the drive. Because the sensing method is non-contact, it avoids the fragility associated with optical code disks in high-vibration environments. The motor uses a smooth shaft, allowing backlash-free coupling through shrink disks or other suitable hubs.

For installation, the power and feedback plugs sit on an angled connection swivel, so cables can be routed rearward or sideways in tight cabinets. That layout helps reduce cable strain where clearance behind the motor is limited. The frame relies on a self-cooling design, which removes the need for external fans during normal operation. The motor is supplied without a holding brake, so the rotor remains free when power is removed and any holding force must come from external clamping. The encoder provides single-turn capability, and its 19-bit resolution supports fine interpolation by the controller. Standard configuration, length code 6, and the dedicated mounting flange are part of the listed build.