BECKHOFF AM8000 - Manual (Page 17)

Drive Technology 6 Technical description
AM8000 and AM8500 Version: 2.4 17
6.3.7 Vibration class
The motors are made to vibration class A according to DIN EN 60034-14. For a speed range of 600-3600 rpm
and a shaft centre height between 54 - 97 mm, this means that the actual value of the permitted vibration
severity is 1.6 mm/s.
Speed [rpm] Max. rel. vibration
displacement [µm]
Max. run-out [µm]
<= 1800 90 23
> 1800 65 16
6.3.8 Vibrations and shocks
OCT, singleturn and multiturn
Vibration according to EN 60068-2-6 50 g / 10…2000 Hz
Shocks according to EN 60068-2-27 100 g / 6 ms
6.3.9 Connection technology
The motors are fitted with rotatable, angular connectors for the power supply and the feedback signals (only
resolver).
The mating connectors are not included in the scope of supply. We can supply preassembled feedback (only
resolver) and power cables.
6.3.10 Feedback system
Feedbacksystem Impulse per
rotation
System accuracy Comment
OCT, Singleturn
OCT, Multiturn
33554432 ± 120 Angle sec. ca. 0,03° Standard:
AM801x – AM8x6x
Hyperface Standard:
AM807x
Resolver 16384 ± 120 Angle sec. ca. 0,17° Option
Note
Feedback exchange
The feedback system installed can only be replaced with an identical system. Retrofitting a
different system is not possible.
6.3.11 Holding brake
WARNING
Serious risk of injury!
The holding brake is not personal safety. If the brake is released then the rotor can be moved
without a remanent torque!
The motors are optionally available with an in-built holding brake. The permanent magnet brake blocks the rotor
in de-energised state. The holding brakes are designed as standstill brakes and are not suited for repeated
operational braking.
The holding brakes can be controlled directly by the servo drive (no personal safety!). The brake voltage is then
switched off in the servo drive — no additional wiring is required.
If the holding brake is not controlled directly by the servo drive, additional circuitry (e.g. varistor) is required.
Consult our applications department beforehand.
The maximum number of brake cycles is 10 million.
Note
Motor length
The motor length depends on the built-in holding brake, among other factors. It is not possible to
fit one at a later date.