Mitsubishi Electric MELSERVO MR-J3-xT, Instruction Manual

Page: 346 / 471

13 - 2
13 CHARACTERISTICS
1000
100
10
1
0.1
0 50 150 200 250 300 100
(Note) Load ratio [%]
O
p
er
at
ion t
ime[
s]
During operation
During servo lock
c. Electronic thermal relay
protection
characteristics3
(Note) Load ratio [%]
Operat
io
n
ti
m
e
[s
]
10000
1000
100
10
1
0 50 150 200 250 100 300
During operation
During servo lock
d. Electronic thermal relay
protection
characteristics4
10000
1000
100
10
1
0 100 200 300
During operation
During servo lock
O
p
er
at
io
n
ti
m
e
[s
]
(Note) Load ratio [%]
e. Electronic thermal relay
protection characteristics5
Note. If operation that generates torque more than 100% of the rating is performed with an abnormally high frequency in a servo motor
stop status (servo lock status) or in a 30r/min or less low-speed operation status, the servo amplifier may fail even when the
electronic thermal relay protection is not activated.
Fig 13.1 Electronic thermal relay protection characteristics (2/2)