8.3 Data for Coasting Distance Calculation
8.3.2 Characteristic Impedance
8-6
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
m
from the
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.
0
2
4
6
8
10
12
14
16
18
0
500
1000 1500
2000
2500
3000
3500
SGM7G-05A
SGM7G-03A
SGD7S-3R8A, SGD7W-5R5A, 7R6A
0
1
2
3
4
5
6
7
8
0
500
1000
1500
2000
2500
3000
3500
SGM7G-09A
SGD7
-7R6A
0
1
2
3
4
5
6
0
1000
2000
3000
4000
5000
6000
7000
SGM7A-20A
SGD7S-180A
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
1000
2000 3000
4000
5000
6000 7000
SGM7G-30A
SGM7A-30A
SGM7A-25A
SGD7S-200A
0
2
4
6
8
10
12
0
1000
2000
3000
4000
5000
6000
7000
SGM7J-06A
SGM7P-08A
SGM7J-08A
SGM7A-06A
SGM7A-08A
SGD7S-5R5A, SGD7W-5R5A, 7R6A
0
0.5
1
1.5
2
2.5
0
1000
2000
3000
4000
5000
6000
7000
SGM7G-44A
SGM7A-50A
SGM7A-40A
SGD7S-330A
SGM7G-30A
0
1
2
3
4
5
6
7
8
9
0
1000
2000
3000
4000 5000
6000
7000
SGM7P-15A
SGM7A-10A
SGM7A-15A
SGD7S-120A
SGM7G-13A
0
5
10
15
20
25
30
0
1000
2000
3000
4000
5000
6000 7000
SGM7P-02A
SGD7W-5R5A, 7R6A
SGM7A-04A
SGM7P-04A
SGM7J-04A
SGM7G-20A
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Speed Nm [min
-1
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]
Characteristic impedance Zm [
Ω
]