AM8031-0C21-0000
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The AM8031-0C21-0000 motor is a permanent magnet-excited three-phase synchronous motor featuring a nominal voltage range of 100–480 V AC, a rated power of 0.42 kW, and a torque constant of 1.37 Nm/A. Developed under the AM Servo Motor Series by Beckhoff, it incorporates itec® plug connection technology.
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Product Description:
The AM8031-0C21-0000 is an accurate three-phase permanent magnet-excited motor derived from Beckhoff’s critically acclaimed AM servomotor series. It features a 72-mm flange, a smooth drive shaft, and an OCT multi-turn motor feedback encoder. With its lightweight design and construction, the AM8031-0C21-0000 fits well for several systems with limited space. Aside from its advanced feedback system, the AM8031-0C21-0000 also incorporates a powerful brake that can hold the rotor in place for highly accurate applications. The holding brake runs at a supply voltage of 24 VDC, while the motor itself can operate between 100 and 480 VAC excitation voltage.
The AM8031-0C21-0000 has an integrated LPTC-600 thermal contact that measures the temperature of the stator winding during operation. Whenever the winding temperature reaches 120 degrees Celsius, a warning is generated. At a detected temperature of 140 degrees Celsius, the motor switches off. Although the motor’s winding can reach a fairly high temperature, the motor must be kept in a lower ambient temperature range during operation. Specifically, the suggested temperature range for the AM8031-0C21-0000 during operation is from 5 to 40 degrees Celsius. Depending on the value of the excitation voltage, the AM8031-0C21-0000’s working speed may be controlled.
At the nominal excitation voltage of 400 VAC, the AM8031-0C21-0000 runs at 3000 min^-1 and develops a shaft torque and power of 1.34 Nm and 0.42 kW. The maximum speed that the machine can achieve at optimal conditions is 10,000 rpm. At starting conditions, the AM8031-0C21-0000 achieves an equivalent current and torque of 1 ampere and 1.37 Nm. During nominal operation, the AM8031-0C21-0000’s holding brake draws 0.33 amperes and consumes 11 watts. At a maximum winding temperature of 120 degrees Celsius, the holding brake can safely halt the rotor with a shaft torque under 2 Nm.
Frequently Asked Questions about AM8031-0C21-0000:
Q: How good is the AM8031-0C21-0000’s holding brake?
A: The AM8031-0C21-0000 has an efficient holding brake that can halt the rotor effectively beyond its rated torque at nominal supply voltage. During actuation, the holding brake has a tolerable release delay of 25 ms and an application delay of 8 ms.
Q: What is the AM8031-0C21-0000’s protection rating?
A: The motor’s housing has an IP 65 protection rating, while its smooth shaft with no sealing ring has a protection grade of IP 54.
Q: How much does the AM8031-0C21-0000 weigh with and without the holding brake?
A: Without the holding brake, the AM8031-0C21-0000 only weighs 1.8 kilograms. With the holding brake, the total mass of the motor is 2.2 kilograms.
Q: What is the AM8031-0C21-0000’s total rotor moment of inertia?
A: Considering the contribution of the AM8031-0C21-0000’s holding brake, the motor’s total rotor moment of inertia is 0.55 kg (cm^2).
Q: What is the AM8031-0C21-0000’s torque constant?
A: The AM8031-0C21-0000 has a relatively high torque constant of 1.37 Nm/A.
