Yaskawa SGDB User Manual
Page 249
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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.
5
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