AM8021-5BH1-0000
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The AM8021-5BH1-0000 is a permanent magnet-excited three-phase synchronous motor with a rated torque of 0.50 Nm and a peak torque of 2.68 Nm. Manufactured by Beckhoff, this motor is part of the AM Servo Motor Series and operates at a rated speed of 8000 min⁻¹. It features a dark gray powder-coated aluminum surface and convection cooling.
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Product Description:
The AM8021-5BH1-0000 is a brushless AC three-phase motor that serves well as a lightweight motor for servo applications. It has three-phase stator windings, which are 120 electrical degrees apart, allowing power to be transmitted efficiently per rotor revolution. The machine’s winding also employs a thermal contact sensor that monitors the motor’s internal temperature during operation. When the winding’s temperature reaches 120 degrees Celsius, a warning message is generated. At 140 degrees Celsius, the machine automatically disconnects via a switch-off mechanism. The AM8021-5BH1-0000 belongs to Beckhoff’s AM motor series line with a 58-mm shaft size.
The AM8021-5BH1-0000 has a type-5 shaft version, which means that the drive side incorporates a radial sealing ring. Furthermore, instead of a plain smooth shaft, the machine employs a grooved, featherkey on its output shaft. Like type-4 shaft versions, type-5 shafts under Beckhoff’s AM series line also include a sealing air connection. The AM8021-5BH1-0000 has an OCT multi-turn SIL 2 24-bit motor feedback system, which allows it to monitor important rotor movement and other parameters during operation. Aside from the mentioned features, the AM8021-5BH1-0000 also comes with a standard 24 V holding brake.
The AM8021-5BH1-0000’s brake holds a maximum torque of 2 Nm at 120 degrees Celsius. To operate normally, the brake must be connected to a 24 V supply. Whenever operated, the AM8021-5BH1-0000 draws 10 watts and facilitates actuation with the following release and application delays: 25 ms and 8 ms, respectively. The AM8021-5BH1-0000 reaches 0.5 Nm and 0.85 A during stall conditions. At 480 volts supply voltage, the AM8021-5BH1-0000’s rotor revolves at a rate of 9000 times per minute to deliver a torque and power of 0.5 Nm and 0.47 kW, respectively.
Frequently Asked Questions about AM8021-5BH1-0000:
Q: What is the maximum mechanical speed of the AM8021-5BH1-0000?
A: The AM8021-5BH1-0000 can reach a maximum mechanical speed of 12,000 revolutions per minute.
Q: What is the phase-phase resistance of the AM8021-5BH1-0000?
A: At 20 degrees Celsius, the phase-phase resistance of the AM8021-5BH1-0000 is 39.4 ohms.
Q: What is the phase-phase inductance of the AM8021-5BH1-0000?
A: At 20 degrees Celsius and at a frequency of 1000 hertz, the phase-phase inductance of the machine winding is 67 millihenries.
Q: When does the AM8021-5BH1-0000 achieve a working speed of 8000 rpm?
A: The AM8021-5BH1-0000 has a nominal working speed of 8000 rpm when operated at a terminal voltage supply of 400 volts. At this voltage, the AM8021-5BH1-0000 outputs 0.42 kW and 0.5 Nm.
Q: How heavy is the AM8021-5BH1-0000?
A: With its blocking brake included, the AM8021-5BH1-0000 weighs a total of 1.16 kilograms. The blocking brake adds in 160 grams to the product’s total weight.
