BECKHOFF AM3000 - Manual (Page 19)

Drive Technology 6 Technical description
AM3000 / AM3500 Version: 1.5 19
6.3.11 Pole numbers
Motor Poles Motor Poles Motor Poles Motor Poles
AM301x 6 AM304x 10 AM307x 10 AM354x 10
AM302x 6 AM305x 10 AM308x 10 AM355x 10
AM303x 8 AM306x 10 AM356x 10
6.4 Options
Holding brake
The holding brake is integrated in the motor. It increases the motor length.
Radial shaft-sealing ring
Radial shaft-sealing ring (Teflon) for sealing against oil mist and oil spray. This increases the protection class of
the shaft bushing to IP67.
Feather key
The motors are available with feather key groove and fitted feather key according to DIN6885. The rotor is
balanced with half a feather key.
EnDat (only AM30xx), BiSS
This model features a different feedback system in place of the resolver, which may result in an increase of the
motor length.
Note
Installation options and reduction of rated values
With the exception of the sealing ring, the options cannot be retrofitted.
Options such as sealing ring, holding brake, EnDAT or BiSS can lead to a reduction of the rated
data.
6.5 Selection criteria
The three-phase servomotors are designed for operation with servo drives.
Both units together form a speed or torque control loop.
The main selection criteria are:
— Standstill torque M0 [Nm]
— Rated speed at rated supply voltage nn [min-1]
— Moment of inertia of motor and load J [kgcm²]
— Effective torque (calculated) Mrms [Nm]
The static load and the dynamic load (acceleration/braking) must be taken into account in the calculation of the
required motors and servo drives. Formulas and calculation example are available from our applications
department on request.