Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 117

8. CHARACTERISTICS
1000
100
Servo lock
10
1
0.1
0 50 100
(Note) Load ratio [
MR-J3-20B-RJ080W to MR-J3-100B-RJ080W
10000
1000
100
Servo lock
10
1
0 50 100
(Note) Load ratio [
MR-J3-500B-RJ080W
Note. If operation that generates torque more than 100% of the rating is performed with an abnormally high frequency in a direct drive 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.
Operating
150 200 250
]
Operating
150 200 250
]
Fig 8.1 Electronic thermal relay protection characteristics
1000
100
10
1
0.1
300
0 50
300
8 - 2
Servo lock
100 150 200
(Note) Load ratio [ ]
MR-J3-350B-RJ080W
Operating
250 300