Mitsubishi Electric MELSERVO-J3 Series Handbook page 242

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
(b) MR-J4-DU_
Table 5.2 Power supply capacity and generated heat per servo motor at rated output
Converter unit Drive unit
MR-J4-DU30K_
MR-CR55K
MR-J4-DU37K_
MR-J4-DU30K_4
MR-J4-DU37K_4
MR-CR55K4
MR-J4-DU45K_4 HG-JR45K1M4
MR-J4-DU55K_4 HG-JR55K1M4
Power supply capacity
[kVA]
Power factor
Servo motor
improving
DC reactor
is not used
HG-JR30K1
48
HG-JR30K1M
HG-JR37K1
59
HG-JR37K1M
HG-JR30K14
48
HG-JR30K1M4
HG-JR37K14
59
HG-JR37K1M4
71
87
Drive unit-generated heat [W] (Note)
Power factor
improving
At rated output
DC reactor
is used
40 1350 (900 + 450)
49 1550 (1000 + 550)
40 1070 (790 + 280)
49 1252 (910 + 342)
59 1580 (1110 + 470)
72 1940 (1440 + 500)
5 - 47
At rated output
[Generated heat
in the cabinet
With servo-off
when cooled
outside the
cabinet]
470
550
390
60 (30 + 30)
470
550
650
Area
required
for heat
dissipation
[m 2 ]
27.0
31.0
21.4
25.1
31.6
38.8