Yaskawa SGDB - Manual (Page 249)

5.2 SGM Servomotor
239
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 SGMG 05Aj
A
09Aj
A
13Aj
A
20Aj
A
30Aj
A
44Aj
A
55Aj
A
75Aj
A
1AA
j A
1EAj
A
Holding
brake
Moment
of Inertia
¢ 10 −4 kg¡m 2 2.1 8.5 8.5 18.8 37.5
brake
90VDC
of Inertia
Increase ¢ 10 −3 lb¡in¡s 2 1.86 7.54 7.54 16.7 33.2
Static
Friction
Torque
N·m 4.41 12.7 43.1 72.6 84.3 114.7
TERMS
Holding Brake
The holding brake is automatically applied to the motor shaft to prevent the load fal-
ling in vertical axis applications when the motor power supply is turned off or fails. It is
only to hold the load and cannot be used for stopping the motor.
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