BECKHOFF AM8xxx Motor Guide
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Au:FANS
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DA:2026-06-08
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82 Br:
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In the transformation of automation drive systems or the development of new equipment, the selection and installation of servo motors directly determine the dynamic performance and long-term reliability of the equipment. The Beckhoff AM8000 and AM8500 series synchronous servo motors cover a wide range from extremely low torque (0.2 Nm) to high torque (129 Nm), with flange sizes ranging from 40 mm to 194 mm, and support for multiple feedback systems (Resolvers, OCT single/multi turn, Hiperface) as well as options such as holding brakes, shaft seals, and forced air cooling. This article is aimed at on-site engineers, systematically sorting out the model meaning, technical parameters, mechanical installation, electrical wiring, brake use, power derating, and common fault troubleshooting of AM8xxx motors, helping you quickly complete selection and deployment in replacing old motors (such as Woodward, Honeywell, and other discontinued models) or new projects.
Re identify the motor electronic nameplate in TwinCAT Drive Manager due to motor vibration, unstable speed, and inappropriate drive parameters (high gain in current and speed loops); Perform automatic tuning
The installation direction for liquid infiltration at the flange is IM V3, and the unsealed air should be installed horizontally; Or add shaft sealing rings and 0.1 bar sealing air
Maintenance and spare parts
Bearing: It is recommended to replace it after 30000 hours of operation. If there is any abnormal response, stop the machine immediately.
Shaft sealing ring: Check every 5000 hours and lubricate with Mobilgrease FM22. Damage can cause IP65 failure.
Cable: When used dynamically, the bending life is about 5 million times. Check for cracks on the outer skin.
Connector: After rotating the plug box more than 10 times or plugging and unplugging 500 times, it is recommended to replace it to maintain IP65.
