8MSA2X.R0-42
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The 8MSA2X.R0-42 is a liquid-cooled synchronous servo motor with flange mounting and a rated voltage of 400V. Manufactured by B & R Automation as part of the 8MS Three Phase Synchronous Motors series, it offers a rated speed of up to 9000 rpm. This motor supports IP54 or IP65 protection.
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Product Description:
The 8MSA2X.R0-42 is a three phase synchronous motor which is the development of B & R Automation suitable for industrial automation applications where precise movement, moderate thrust load and reliable operation is required. The motor is categorized under the series of 8MS Three Phase Synchronous Motors.
The 8MSA2X.R0-42 Synchronous Motor can produce 3.2 nm torque for a short duration without being damaged which is useful during rapid acceleration or load disturbances. The back electromotive force (EMF) generated per 1000 revolutions per minute is 42. The continuous torque the synchronous motor can deliver without overheating is 0.68 newton meters. The motor draws 1.05 current when operating at its rated torque and speed which is important for sizing drives and protection systems. It has an inductance of 25 mH per phase of the stator winding which influences the dynamic response and affects how fast its current can change. When it is energized but not rotating (shaft is locked) it consumes 1.15 amperes of current. It has a 0.13 kgcm² of moment of inertia which means it has less resistance to changes in rotational speed. It is built to deliver mechanical power of 0.43 kW continuously.
The 8MSA2X.R0-42 synchronous motor current takes 1.02 ms to reach 63% of its final value after a voltage is applied. The time it takes to heat up to 63% of its max temperature rise under load is 22 minutes. It is able to produce 0.70 newton meters of torque per ampere of current which indicates higher torque output for a given current. At its rated load conditions the nominal operating speed is 6000 min⁻¹ which determines its suitability for high speed tasks.
Frequently Asked Questions about 8MSA2X.R0-42:
Q: How does the high voltage constant affect motor control in the 8MSA2X.R0-42 motor?
A: A voltage constant of 42 V/1000 min⁻¹ enables precise speed estimation in feedback control. This improves drive accuracy in automation systems.
Q: Why is low moment of inertia important in the 8MSA2X.R0-42 synchronous motor?
A: The 0.13 kgcm² inertia allows fast acceleration and deceleration. This enhances positioning accuracy in high-speed automation tasks.
Q: What benefits does a peak torque of 3.2 Nm provide for short-term operations?
A: It helps the motor handle sudden load changes and fast acceleration. This ensures stability during high-dynamic movements.
Q: Why is the stator inductance of 25 mH significant in motor response?
A: It determines how quickly current can rise or fall. Affects control bandwidth in high-speed servo loops.
Q: What does the thermal time constant of 22 minutes indicate in the 8MSA2X.R0-42 motor?
A: It reflects the motor’s thermal capacity and allows longer operation before requiring cooling or power reduction.
