8Lsa78.Db030d200-3 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8Lsa78.Db030d200-3 is a synchronous motor from the 8LS Synchronous Motors series featuring a nominal power of 13823 W and a rated speed of 3000 rpm. It provides a nominal torque of 44 Nm, maximum torque of 330 Nm, and uses the EnDat 2.2 encoder protocol with a 19/12-bit resolution. The motor has a flange dimension of 190 mm and a nominal current rating of 27 Amps.
Internal Product Review
The 8Lsa78.Db030d200-3 is a B & R Automation 8LS synchronous motor with 44 Nm nominal torque and 3000 rpm rated speed. EnDat 2.2 feedback with 19/12-bit resolution supports precise motion control and dependable integration in servo applications. Maximum torque of 330 Nm highlights excellent overload capability for demanding axis performance.
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Product Description:
The 8Lsa78.Db030d200-3 synchronous servo motor is produced by B & R Automation within the 8LS Synchronous Motors series. This rotary actuator converts three-phase electrical energy into tightly regulated torque and speed for positioning axes, conveyors, and tooling stations in automated machinery. The integration of power, feedback, and a holding brake within a compact frame allows the motor to serve as a direct-drive element in modern motion control systems. Its configuration supports applications that require controlled acceleration, repeatable positioning, and stable operation under changing mechanical loads.
Under continuous duty, the motor delivers a nominal torque of 44 Nm while drawing 27 A; this combination yields 13,823 W of mechanical output at the rated shaft speed of 3000 rpm. When rapid acceleration is required, the electromagnetic structure can reach a maximum torque of 330 Nm, and it withstands a momentary stall torque of 85 Nm without demagnetization. The voltage constant of 98.44 V per 1000 rpm sets the back electromotive force presented to the drive as rotational speed increases. A torque constant of 1.63 Nm/A relates phase current to the torque developed by the motor. These values allow the drive controller to regulate current in response to acceleration demands and changes in the connected load.
Mechanical integration is supported by a 190 mm flange and length code 8, providing an adequate mounting surface without excessive housing length. For vertical axes, a holding brake supplies 47 Nm to secure loads when power is removed, and the winding can endure a locked-rotor condition with up to 52.1 A of stall current. Dynamic behavior is governed by a stator inductance of 1.8 mH and a phase resistance of 0.08 Ω, which the drive uses to tune the current control loop. An EnDat 2.2 encoder provides 19-bit single-turn resolution and a 12-bit multi-turn range covering 4096 revolutions, allowing absolute position data to be available at startup. Product revision 3 uses the Standard Configuration, with cable exits and sensor orientation arranged according to standard B & R layouts.
