Mitsubishi Electric MELSERVO-J3W Series, Инструкция по эксплуатации

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14. USING A DIRECT DRIVE MOTOR
14 - 63
(b) Dynamic brake time constant
The following shows necessary dynamic brake time constant τ for equation 14.1.
Speed [r/min]
T
ime
co
ns
ta
nt
[
m
s]
0
0 100 200
5
15
20
25
30
300 400 500
006
004
10
002
Speed [r/min]
T
ime
co
ns
ta
nt
[
m
s]
0
0 100 200
70
300 400 500
012
006
018
10
20
30
40
50
60
TM-RFM C20 TM-RFM E20
0
0
10
30
40
50
60
20
012
100 200 300 400 500
Speed [r/min]
T
ime
co
ns
ta
nt
[
m
s]
0
0
60
040
50 100 150 200
70
80
50
40
30
20
10
Speed [r/min]
T
ime
co
ns
ta
nt
[
m
s]
TM-RFM G20 TM-RFM J10
(2) Permissible load to motor inertia ratio when the dynamic brake is used
Use the dynamic brake under the load to motor inertia ratio indicated in the following table. If the ratio is
higher than this value, the built-in dynamic brake may burn. If there is a possibility that the ratio may exceed
the value, contact your local sales office.
The values of the permissible load to motor inertia ratio in the table are the values at the maximum rotation
speed of the direct drive motor.
The value in the parenthesis shows the value at the rated speed of the direct drive motor.
Servo amplifier
MR-J3W-22B MR-J3W-44B MR-J3W-77B MR-J3W-1010B
Direct drive motor
A-axis B-axis A-axis B-axis A-axis B-axis A-axis B-axis
TM-RFM002C20 100 (300) 100 (300)
TM-RFM004C20 100 (300) 100 (300) 100 (300)
TM-RFM006C20 100 (300) 100 (300)
TM-RFM006E20 100 (300) 100 (300)
TM-RFM012E20 100 (300) 100 (300)
TM-RFM018E20 100 (300)
TM-RFM012G20 50 (300) 50 (300)
TM-RFM040J10 50 (200) 50 (200)