8LSA57.E1045D000-0
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The B & R Automation 8LSA57.E1045D000-0 motor, part of the 8LS Synchronous Motors series, features a rated voltage of 400 V. This motor delivers a rated power of 0.75 kW and utilizes a single-turn absolute encoder. Its cooling method is self-cooled, and the protection class is certified at IP65.
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Product Description:
B & R Automation designs the servo motor 8LSA57.E1045D000-0 as a part of the 8LS series for precise motion control applications. It uses 4 magnetic pairs of poles in the stator for synchronized movements and uniform torques delivery of 15 Nm. The motor has nominal operating current mode of 13.7 A while in overload conditions the maximum permittable current draw reaches up to 82.6 A for a brief time.
The 8LSA57.E1045D000-0 servo motor features a voltage constant of 65.97 V/1000 rounds and it functions at continuous speed of 4500 r/minute. Its maximum torque capacity is 82.6 Nm and consumes 7069 W of power normally. The constant torque value is 1.09 Nm per every ampere of current and the stator impedance is 0.29 ?. The 8LSA57 servo motor offers an electrical time of 11 ms and its angular moment of inertia is 13.13 kgxcm^2. It supports a holding brake of 15 Nm torque and inertia value 1.66 kgxcm^2. The motor has a mass of 14.5 kg on its own while the brake carries a weight of 1.3 kg. The 8LSA57 servo motor possess both horizontal and vertical orientations of mounting. It stays thermally stable by means of natural surface air circulation and it comes with an integrated optical EnDat 2.1 encoder. The encoder is designed as a 12 bits multi-turn and it provides switching frequency greater than 60 kHz.
The 8LSA57.E1045D000-0 servo motor has level A vibration severity in accordance with EN 60034-14 and its enclosure rating is IP64 which can be extended to IP65 through the optional sealing. The 8LSA57 servo motor needs an input supply source of 3x 400/480 VAC ~10% at 50/60 Hz frequency to operate and its maximum permitted flange temperature is 65 degrees C.
Frequently Asked Questions about 8LSA57.E1045D000-0:
Q: Why does the 8LSA57.E1045D000-0 use a 12-bit multi-turn EnDat 2.1 encoder?
A: It provides high-resolution feedback, ensuring accurate position control in multi-axis systems. The EnDat 2.1 also supports digital data transmission for improved noise immunity.
Q: What is the benefit of the 4 magnetic pole pairs in the stator?
A: More pole pairs increase synchronization accuracy and torque smoothness, especially important in precision applications.
Q: How does the 1.09 Nm/A torque constant affect performance in 8LSA57.E1045D000-0?
A: It allows for precise torque regulation relative to input current, minimizing control errors during rapid load changes.
Q: Why is an 11 ms electrical time constant important?
A: A shorter electrical time constant ensures fast current response, which enhances dynamic control in servo loops.
Q: How does IP64 protection benefit the 8LSA57.E1045D000-0 in harsh environments?
A: It offers solid protection against dust ingress and water spray, essential for consistent performance in industrial settings.
