8LSA44.DB045D300-3
The 8LSA44.DB045D300-3 motor is a three-phase synchronous unit produced by B&R Automation within the 8LS Synchronous Motors series. Serving as a servo-class actuator, it converts drive inverter current into controlled mechanical rotation for indexing tables, pick-and-place axes, and other precision motion in automated cells. The A-level configuration indicates a standard design without reinforced bearings, so it is intended for general-duty positioning tasks rather than high-radial-load spindle applications.
Electrical and mechanical interfacing is simplified by a connector with an angled swivel orientation, allowing cable clearance without tight bend radii. Cooling is provided by self-cooling through free circulation, so ambient air removes heat without auxiliary fans or liquid jackets. Position feedback is supplied by an inductive EnDat encoder that uses the 2.2 protocol, so the drive receives absolute position data with cyclic redundancy checking over a single pair. The 100 mm square mounting face meets IEC flange standards, and a keyed shaft couples directly to gearboxes. The built-in flange seats the motor securely, and the length code 4 stack balances torque output with limited overall depth. Because no oil seal is fitted, the front bearing should not face oil splash.
A standard holding brake generates static torque when power is removed, which helps hold vertical axes in place. Sustained rotor speed up to 4500 rpm supports quick indexing while maintaining controlled motion in repetitive cycles. Encoder resolution is given as 19/12 single-turn and multi-turn bits, allowing precise position feedback during slow moves. The encoder also provides multi-turn capability for 4096 revolutions, preserving position information through multiple shaft turns after a power cycle, and position and brake status are communicated over the EnDat channel.
