Mitsubishi Electric MELSERVO MR-J3-xT, Instruction Manual

Page: 351 / 471

13 - 7
13 CHARACTERISTICS
Speed[r/min]
200 400 600 1200
T
im
e
co
ns
ta
nt
[m
s]
10
20
30
40
50
60
0
0
800 1000
15K1
25K1
12K1
801
20K1
601
0
Speed[r/min]
20
40
60
80
100
120
0 500 1000 1500 2000
11K1M
15K1M
22K1M
701M
T
im
e
co
n
st
a
n
t
[m
s]
HA-LP1000r/min series HA-LP1500r/min series
Speed[r/min]
0
0
500 1000 1500 2000
80
60
40
20
11K2
15K2
22K2
502
702
T
im
e
co
ns
ta
n
t
[m
s]
T
im
e
co
n
st
a
nt
[m
s]
0
0
52
500 1000 1500 2000
202
200
152
102
160
120
80
40
302
Speed[r/min]
HA-LP2000r/min series HC-LP series
Fig. 13.5 Dynamic brake time constant2
Use the dynamic brake at the load inertia moment indicated in the following table. If the load inertia moment is
higher than this value, the built-in dynamic brake may burn. If there is a possibility that the load inertia moment
may exceed the value, contact Mitsubishi.
Servo amplifier Load inertia moment ratio [times]
MR-J3-10T (1)
MR-J3-20T (1)
MR-J3-40T (1)
MR-J3-60T
MR-J3-70T
MR-J3-100T
MR-J3-200T
30
MR-J3-350T 16
MR-J3-500T 15
MR-J3-700T
(Note 1) 15
(Note 2) MR-J3-11KT
(Note 2) MR-J3-15KT
(Note 2) MR-J3-22KT
30
Note 1. The value is 5 when used at motor speed over 2000r/min.
2. When the external dynamic brake is used.