8LSN55.EB020D700-0 B & R Automation
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The 8LSN55.EB020D700-0 is a three-phase synchronous motor manufactured by B & R Automation as part of the 8LS Synchronous Motors series. It features a 142 mm mounting flange, operates at a rated speed of 2000 rpm, and uses self-cooling with increased mass moment of inertia. The motor includes an inductive EnDat encoder, supports multi-turn capability up to 4096 revolutions, and has an angled connection direction.
Internal Product Review
The 8LSN55.EB020D700-0 is a B & R Automation three-phase synchronous motor built for consistent motion performance. Inductive EnDat 2.1 feedback and 19/12-bit single-/multi-turn resolution support precise control and dependable position tracking. Self-cooling and a 2000 rpm rated speed make the unit a strong choice for efficient machine integration.
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Product Description:
The 8LSN55.EB020D700-0 is a servo motor manufactured by B & R Automation for the 8LS Synchronous Motors series. Positioned in the 8LSN subgroup, it is intended for closed-loop positioning tasks that require rapid acceleration and precise stopping. When connected to a compatible inverter, the unit converts three-phase drive power into regulated rotary motion, making it suitable for indexing tables, carton erectors, and compact gantry systems used in modern automated production lines.
Mechanical integration is simplified by a mounting flange with a pilot circle measuring 142 mm. The housing follows length code 5 and comes in the standard configuration, giving machine designers a consistent footprint for installation. Internally, the stator and rotor form a three-phase synchronous package capable of reaching 2000 rpm at the rated operating point. Output torque is delivered through a keyed shaft end, while an oil seal helps prevent contaminants from entering along the shaft journal. The frame uses self-cooling with an increased mass moment of inertia, allowing heat to dissipate through the motor surface without auxiliary fans. Power and feedback cables exit through an angled swivel connector that supports strain relief when the cables are routed through cable chains.
Absolute position data is supplied by an inductive EnDat encoder that communicates using protocol version 2.1. The encoder provides 19 bits of single-turn resolution and 12 bits of multi-turn resolution. It can track rotation across a multi-turn range of 4,096 revolutions before the count resets, eliminating the need for homing after a power cycle. The motor has no mechanical holding brake, so stationary loads must be held electrically or secured by an external clamp. Its inductive measuring principle resists interference from dust and oil aerosols, helping the encoder maintain dependable feedback in demanding production environments. The absolute feedback system also allows the connected drive to recover the recorded shaft position immediately after power is restored.
