YASKAWA SGM7D Product Manual page 139

SERVOPACKs without Built-in Regenerative Resistors
The following graph shows the allowable load moment of inertia scaling factor of the motor
speed (reference values for deceleration operation at or above the rated torque). Application is
possible without an external regenerative resistor within the allowable value. However, an Exter-
nal Regenerative Resistor is required in the shaded areas of the graphs.
SGMCS-02B
12
10
8
6
4
2
0
0 100 200 300 400
-1
Motor speed (min
SGMCS-07B
12
10
8
6
4
2
0
0 100 200 300 400
-1
Motor speed (min
SGMCS-14C
3.5
3
2.5
2
1.5
1
0.5
0
0 50 100 150 200 250 300 350
Motor speed (min -1
Note: Applicable SERVOPACK models: SGD7S-2R8A and -2R8F
When an External Regenerative Resistor Is Required
Install the External Regenerative Resistor.
Refer to the following catalog for information on External Regenerative Resistors.
AC Servo Drives Σ-7 Series (Manual No.: KAEP S800001 23)
SGMCS-04C
12
10
8
6
4
2
0
0 100 200
500 600
) Motor speed (min
SGMCS-08D
3.5
3
2.5
2
1.5
1
0.5
0
500 600 0 100 200
) Motor speed (min
SGMCS-17D
3.5
3
2.5
2
1.5
1
0.5
0
0 50 100 150 200 250 300 350 400
) Motor speed (min
7.2 Specifications and Ratings
7.2.9 Allowable Load Moment of Inertia
12
10
8
6
4
2
0
300 400 500 600 0
-1
)
6
5
4
3
2
1
0
0
300 400 500 600
-1
)
3.5
3
2.5
2
1.5
1
0.5
0
0
-1 )
SGMCS-05B
100 200 300 400 500 600
-1
Motor speed (min )
SGMCS-10C
100 200 300 400 500
-1
Motor speed (min )
SGMCS-25D
50 100 150 200 250 300
Motor speed (min -1 )
7-15
7