Yaskawa SGDB - Manual (Page 270)

USING THE DIGITAL OPERATOR
5.2.1 Ratings and Specifications cont.
260
NOTE The ratings and specifications above refer to a standard servomotor.
Add the numerical values below to the moment of inertia values in the table for a motor
fitted with a holding brake.
Other specifications will also change slightly.
Servomotor SGMS 10AjA 15AjA 20AjA 30AjA 40AjA 50AjA
Holding
brake
Moment
of Inertia
¢ 10 −4 kg¡m 2 0.325 2.1
brake
90VDC
of Inertia
Increase ¢ 10 −3 lb¡in¡s 2 0.289 1.86
Static
Friction
Torque
N·m 7.84 2.0
5