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8.3 Data for Coasting Distance Calculation
8.3.2 Characteristic Impedance
8.3.2
Characteristic Impedance
The following figures show the relationship between the characteristic impedance and Servo-
motor speed.
Refer to the graph for your Servomotor and obtain the characteristic impedance Z
speed immediately before a dynamic brake stop.
For Rotary Servomotors
The following graphs show the Servomotors that can be used with each model of SERVO-
PACK.
30
25
20
15
10
5
0
12
10
8
6
4
2
0
9
8
7
6
5
4
3
2
1
0
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
8-6
SGD7W-5R5A, 7R6A
0
1000
2000
3000 4000
Speed Nm [min
SGD7S-5R5A, SGD7W-5R5A, 7R6A
SGM7A-08A
SGM7A-06A
SGM7J-06A
SGM7P-08A
SGM7J-08A
0
1000
2000 3000
4000 5000 6000
Speed Nm [min
SGD7S-120A
SGM7G-13A
0
1000
2000 3000
4000 5000
Speed Nm [min
SGD7S-200A
SGM7A-25A
SGM7A-30A
SGM7G-30A
0
1000
2000 3000
4000
Speed Nm [min
18
SGM7A-04A
16
SGM7P-04A
14
12
10
8
6
4
SGM7P-02A
2
SGM7J-04A
0
5000
6000 7000
-1
]
8
7
6
5
4
3
2
1
0
7000
-1
]
6
5
4
3
2
SGM7P-15A
SGM7A-10A
1
SGM7A-15A
0
6000
7000
-1
]
2.5
2
1.5
1
0.5
0
5000
6000 7000
-1
]
SGD7S-3R8A, SGD7W-5R5A, 7R6A
0
500
1000 1500
2000 2500
Speed Nm [min
SGD7 -7R6A
0
500
1000
1500
2000 2500
Speed Nm [min
SGD7S-180A
SGM7A-20A
SGM7G-20A
0
1000
2000
3000 4000
Speed Nm [min
SGD7S-330A
SGM7G-30A
0
1000
2000 3000
4000 5000
Speed Nm [min
from the
m
SGM7G-05A
SGM7G-03A
3000
3500
-1
]
SGM7G-09A
3000
3500
-1
]
5000
6000
7000
-1
]
SGM7A-40A
SGM7A-50A
SGM7G-44A
6000 7000
-1
]
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Troubleshooting
