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.