Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_
5 - 30
4. CHARACTERISTICS
4.1 Capacity of Power Source Facility and Generation Loss
(1) Calorific values of converter units and drive units
Table 5.1 and Table 5.2 shows heat losses at rated load and power supply capacity for a set of a
converter unit and drive unit. When a servo motor runs at a speed less than its rated speed, its power
supply capacity becomes less than a value in the table while its calorific value remains the same.
Since the servo motor requires 2 times to 2.5 times greater instantaneous power for acceleration, use
the power supply which ensures that the voltage lies within the permissible voltage fluctuation at the
main circuit power supply terminals (L1/L2/L3) of the converter unit. The power supply equipment
capacity changes with the power supply impedance.
The actually generated heat falls within the ranges at rated output and at servo-off according to the
frequencies of use during operation. When designing an enclosed cabinet, use the values in the table,
considering the worst operating conditions. The calorific values in Table 5.1 and Table 5.2 do not include
those at regeneration.
(a) MR-J2S series
Table 5.1 Power supply capacities and calorific values per axis at rated output for MR-J2S series
Servo amplifier
Converter unit
Power supply capacity [kVA]
The calorific value of a servo amplifier [W] (Note)
Required heat
dissipation
area [m
2
]
Power factor
improving DC
reactor not used
Power factor
improving DC
reactor used
At rated output
At zero torque
MR-J2S-30KA/B
MR-HP30KA
48 40
1650
(1100 + 550)
60
(30 + 30)
24.1
MR-J2S-37KA/B 59
49
1850
(1300 + 550)
60
(30 + 30)
30.6
MR-J2S-30KA4/B4
MR-HP55KA4
48 40
1290
(1010 + 280)
60
(30 + 30)
24.1
MR-J2S-37KA4/B4 59
49
1650
(1310 + 342)
60
(30 + 30)
30.6
MR-J2S-45KA4/B4 71
59
1810
(1370 + 440)
60
(30 + 30)
33.5
MR-J2S-55KA4/B4 87
72
2190
(1690 + 500)
60
(30 + 30)
40.5
Note. A term on the left in () is for a servo amplifier and one on the right is for a converter unit.
(b) MR-J4-DU_
Table 5.2 Power supply capacities and calorific values at rated output for power regeneration converter unit
Converter unit
Drive unit
Servo motor
Power supply capacity [kVA]
The calorific value of a drive unit [W] (Note)
Required
heat
dissipation
area [m
2
]
Power factor
improving DC
reactor not used
Power factor
improving DC
reactor used
At rated output
At rated output
[Internal heat
generation at
external cooling]
Servo off
MR-CR55K
MR-J4-DU30K_ HG-JR30K1
HG-JR30K1M
48
40
1350 (900 + 450)
470
31.0
MR-J4-DU37K_ HG-JR37K1
HG-JR37K1M
59
49
1550 (1000 + 550)
550
36.6
MR-J4-DU30K_4 HG-JR30K14
HG-JR30K1M4
48
40
1070 (790 + 280)
390
60
(30 + 30)
25.8
MR-CR55K4
MR-J4-DU37K_4 HG-JR37K14
HG-JR37K1M4
59
49
1252 (910 + 342)
470
30.8
MR-J4-DU45K_4 HG-JR45K1M4
71
59
1580 (1110 + 470)
550
42.4
MR-J4-DU55K_4 HG-JR55K1M4
87
72
1940 (1440 + 500)
650
43.0
Note. A term on the left in () is for a drive unit and one on the right is for a converter unit.
Содержание MELSERVO-J2-Super Series
Страница 18: ...Part 1 Summary of MR J2S MR J2M Replacement 1 1 Part 1 Summary of MR J2S MR J2M Replacement ...
Страница 31: ...Part 1 Summary of MR J2S MR J2M Replacement 1 14 MEMO ...
Страница 109: ...Part 3 Review on Replacement of MR J2S _B_ with MR J4 _B_ 3 32 MEMO ...
Страница 161: ...Part 4 Review on Replacement of MR J2S _CP_ CL_ with MR J4 _A_ RJ 4 52 MEMO ...
Страница 219: ...Part 5 Review on Replacement of MR J2S 30 kW or Higher Capacity Models with MR J4 DU_ 5 58 MEMO ...
Страница 220: ...Part 6 Review on Replacement of MR J2M with MR J4 6 1 Part 6 Review on Replacement of MR J2M with MR J4 ...
Страница 239: ...Part 6 Review on Replacement of MR J2M with MR J4 6 20 MEMO ...
Страница 240: ...Part 7 Common Reference Material 7 1 Part 7 Common Reference Material ...
Страница 284: ...Part 7 Common Reference Material 7 45 Click Update Project ...
Страница 342: ...Part 8 Review on Replacement of Motor 8 1 Part 8 Review on Replacement of Motor ...
Страница 409: ...Part 8 Review on Replacement of Motor 8 68 MEMO ...
Страница 461: ...Part 9 Review on Replacement of Optional Peripheral Equipment 9 52 MEMO ...
Страница 462: ...Part 10 Startup Procedure Manual 10 1 Part 10 Startup Procedure Manual ...
Страница 464: ... Appendix 1 Summary of MR J4_B_ RJ020 MR J4 T20 Appendix 1 1 Appendix 1 Summary of MR J4_B_ RJ020 MR J4 T20 ...