Mitsubishi Electric MR-J4 B Series Instruction Manual page 334

15. USING A DIRECT DRIVE MOTOR
1000
100
Servo-lock
10
[s]
1
0.1
0 50 100
(Note) Load ratio [%]
TM-RFM002C20, TM-RFM004C20,
TM-RFM006C20, TM-RFM006E20,
TM-RFM012E20, TM-RFM018E20,
TM-RFM012G20, TM-RFM040J10
10000
1000
Servo-lock
100
[s]
10
1
0 50 100
(Note) Load ratio [%]
TM-RFM240J10
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 30 r/min or less low-speed operation status, the servo amplifier may malfunction
regardless of the electronic thermal protection.
Operating
150 200 250
( ) [%]
Operating
150 200 250
( ) [%]
1000
100
10
[s]
1
0.1
300 0 50
TM-RFM048G20, TM-RFM072G20,
300
Fig. 15.2 Electronic thermal protection characteristics
15 - 17
Servo-lock
100 150 200
( ) [%]
(Note) Load ratio [%]
TM-RFM120J10
Operating
250 300