Product Description:

The 8LSA55.E1030D300-3 is a three-phase synchronous motor manufactured by B&R Automation for the 8LS Synchronous Motors series. In the type code, the 8LSA designation identifies the standard configuration without reinforced bearings, making the motor suitable for general-purpose servo axes. The unit converts controlled inverter output into rotary motion for packaging machines, pick-and-place gantries, and similar automation equipment through a keyed shaft end. A mounting flange allows the motor to connect directly to compatible gearboxes or machine frames without additional brackets.

The motor achieves a rated speed of 3000 rpm, permitting direct coupling to drives that operate with 1 kHz position loops. A square interface with a flange outside diameter of 142 mm centers the stator and maintains concentricity under load. Rotor position is monitored by an optical EnDat encoder that supports EnDat version 2.1 and provides absolute feedback with 13/12-bit single-turn and multi-turn resolution. This sensor internally tracks up to 4096 revolutions, eliminating the need for homing routines after power cycles. Length code 5 indicates the magnetic stack length. An integral connector and angled swivel lead-out route power and signal cables away from the flange, reducing the installation depth required behind the motor.

Heat is removed through self-cooling, which relies on free air circulation around the housing and does not require an external blower. Shaft locking during downtime is provided by a standard holding brake that engages automatically when its supply voltage is removed. The motor is produced as revision 3. The front bearing arrangement has no oil seal, so the motor must be isolated from spray lubrication and other liquids that could reach the shaft opening. The standard bearing arrangement does not include reinforced bearings, which helps limit motor weight while accommodating the typical radial loads associated with this frame size.