Technical description
Synchronous servomotor18 Version: 2.1
OCT
This model features a different feedback system in place of the resolver.
Installation options and reduction of rated values
• With the exception of the sealing ring, the options cannot be retrofitted.
• The option sealing ring can lead to a reduction of the rated data.
6.5 Selection criteria
The three-phase servomotors are designed for operation with servo terminals.
Both units together form a speed or torque control Loop.
The main selection criteria are:
• Standstill torque M0 [Nm]
• Maximal torque Mmax [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 terminals. Formulas and calculation example are available from our
applications department on request.
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