8MSA3M.E1-B4
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The 8MSA3M.E1-B4, developed by B & R Automation for their 8MS Three Phase Synchronous Motors series, comes equipped with a solid shaft and a 140 mm output flange. It delivers a nominal output torque of 220 Nm, operates within -15°C to +40°C, features IP65 protection, and weighs 12.5 kg.
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Product Description:
The B & R Automation’s 3-Phase Synchronous Motor 8MSA3M.E1-B4 provides a rated torque of 1.15 Nm, which allows stable performance under conditions of nominal load. This motor draws 0.95 A of rated current under continuous operation to ensure efficient energy use with consistent speed and torque levels.
During maximum load or dynamic acceleration, the 8MSA3M.E1-B4 accommodates a maximum current of 4.3 A to provide flexibility for transient performance needs. This motor’s stalled current of 1.01 A protects the winding integrity under locked rotor conditions to ensure safe operation. This synchronous motor’s torque constant of 1.29 Nm/A increases the efficiency of the conversion of electrical input to mechanical output. A voltage constant of 78 V/1000 min⁻¹ supports this synchronous motor to achieve the desired level of back-EMF, which helps in precise speed regulation in feed-back systems. A maximum rotational acceleration of 8000 rad/s² of this motor supports applications with high-speed positioning and motion start-up demands. This synchronous motor’s electrical time constant of 1.8 ms demonstrates fast response to current changes, and allows for a tight control loop and smooth operation in high-performance drives. The 62 mH stator inductance helps to provide stable dynamics of this motor, which allows efficient current ripple suppression and overall better electromagnetic behavior.
The suggested cross-section of the cable of 1.5 mm² guarantees proper current transmission by this motor with low resistance loss and maximum electrical safety. This motor’s class F insulation rating ensures it can resist winding temperatures of up to 155°C, to retain insulation strength when there is high thermal stress. This motor is capable of managing long periods of operation under controlled thermal accumulation due to its thermal time constant of 30 minutes. The weight of the 8MSA3M.E1-B4 motor without brake is 2.25 kg, which makes it possible to integrate mechanically into space-conscious assemblies without imposing excessive load on the system.
Frequently Asked Questions about 8MSA3M.E1-B4:
Q: How does the insulation class F benefit the 8MSA3M.E1-B4 motor?
A: It allows the motor windings to handle higher temperatures up to 155°C. This improves long-term thermal reliability in demanding environments.
Q: Why is a 1.5 mm² cable cross section recommended for this motor?
A: It ensures minimal voltage drop and heat generation during operation. This helps maintain current stability and safe electrical connections.
Q: What advantage does a thermal time constant of 30 minutes offer in 8MSA3M.E1-B4?
A: It allows extended operation before reaching critical temperature levels. This helps in applications requiring longer duty cycles without additional cooling.
Q: How does 62 mH stator inductance affect performance?
A: Higher inductance improves current filtering and reduces high-frequency ripple. This results in smoother torque delivery under variable loads.
Q: Why is a voltage constant of 78 V/1000 min⁻¹ important in 8MSA3M.E1-B4?
A: It defines the back EMF, supporting stable speed control. This is essential in systems with precise velocity regulation.
