AM8031-0C41-0000
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The AM8031-0C41-0000 servo motor is a permanent magnet-excited three-phase synchronous motor, featuring a standstill torque of 1.37 Nm, a nominal voltage of 100…480 V AC, and a peak torque of 6.10 Nm. Part of the AM Servo Motor Series by Beckhoff, it operates at a rated speed of 3000 min⁻¹ with versatile motor feedback options.
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Product Description:
Not all servomotors incorporate a holding brake. Motors with a built-in blocking brake are commonly utilized for applications requiring load retention and precise positioning. Beckhoff’s AM8031-0C41-0000 is an AM servomotor that employs a 24 VDC brake with a rated holding torque of 2 Nm. During operation, the holding brake requires at least 25 milliseconds to fully release the rotor and allow movement. On the other hand, the holding brake takes only about 8 milliseconds during application. Without an integrated radial shaft sealing ring, the AM8031-0C41-0000’s drive has a protection rating of IP 54. The motor housing, which protects the stator and the rotor, has a higher protection rating of IP 65.
The AM8031-0C41-0000 is a relatively small three-phase motor that employs natural convection for cooling. With its small size and dimensions, the AM8031-0C41-0000 has a small thermal time constant of 24 minutes. With its standard holding brake, the AM8031-0C41-0000 has a rotor moment of inertia of 0.55 kg (cm^2), a length of 168 mm, and a net mass of 2.2 kilograms. During standstill mode, when the rotor is prohibited from moving, the motor draws an RMS current of 1 ampere. At this standstill RMS current, the corresponding torque developed at the output shaft is 1.37 Nm.
At an RMS excitation voltage of 400 V, the AM8031-0C41-0000 achieves its nameplate values. Specifically, the working speed of the motor at this condition is 3000 rpm, while the power and output torque are 420 watts and 1.34 Nm. Although the standstill and nominal values of the AM8031-0C41-0000 are relatively close to each other, the AM8031-0C41-0000 can sustain much higher peak values. Specifically, the AM8031-0C41-0000 can reach a peak mechanical speed of 10,000 rpm, a peak torque of 6.1 Nm, and a peak RMS current of 5.5 A.
Frequently Asked Questions about AM8031-0C41-0000:
Q: What supply voltages does the AM8031-0C41-0000 support?
A: The AM8031-0C41-0000 supports a voltage supply range of 100 to 480 volts.
Q: What type of motor feedback system does the AM8031-0C41-0000 employ?
A: The AM8031-0C41-0000 employs a type-4 motor feedback system, which incorporates a Hiperface multi-turn SinCos encoder.
Q: What are the electrical characteristics of the AM8031-0C41-0000’s holding brake?
A: Assuming nominal operating conditions, the AM8031-0C41-0000’s holding brake requires 11 watts of power and draws 0.33 A.
Q: How many poles does the AM8031-0C41-0000 have?
A: The AM8031-0C41-0000 has eight total poles, which are 45 mechanical degrees apart.
Q: What is the AM8031-0C41-0000’s winding inductance and resistance?
A: Based on Beckhoff’s manual for AM8 motors, the phase-phase inductance and resistance of all AM8031-XCXX-XXXX are 134 mH and 51 ohms, respectively. Both measurements assume 20 degrees Celsius ambient temperature and 1 kHz frequency.
