Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 530

[Appendix 1] Summary of MR-J4_B_-RJ020 + MR-J4-T20
2) MR-RB137/MR-RB13V-4
13.6 External Dynamic Brake
The list of external dynamic brakes with a large capacity of 30 kW or more (combination) is shown below.
Name
DBU-37K
DBU-37K-R1
DBU-55K-4
DBU-55K-4-R5
For details, refer to "Part 5: Review on Replacement of MR-J2S-30kW or More with MR-J4-DU_".
POINT
For MR-RB137 and MR-RB13V-4, three units are required for each converter
unit. For MR-RB137 and MR-RB13V-4, purchase three units.
Power factor
improving
DC reactor
RA
24VDC
DC 24 V
(Note 3)
Power supply
Note 1. When using the power factor improving DC reactor, remove the short bar across
P1 and P2.
2. Specifications for contact between G3 and G4
Maximum voltage: 120 V AC/DC
Maximum current: 0.5 A/4.8 V DC
Maximum capacity: 2.4 VA
3. For the power specifications for the cooling fan, refer to the table in Appendix 1.
4. For MR-RB13V-4, "R1" becomes "R400" and "S1" becomes "S400".
MR-J4-B
HA-_FS/HC-_FS
HG motor Drive
motor Drive
Not compatible Compatible
Compatible Not compatible
Not compatible Compatible
Compatible Not compatible
Appendix 1-67
Converter unit
(Option)
P1
P1
(Note 1)
P2
P2
C
P C P C
G3 G4 G3 G4
Regenerative Regenerative
option option
Cooling fan Cooling fan
(Note 4) (Note 4)
R1 S1 R1 S1
Compatible
MR-J2S-B
HA-_FS/HC-_FS
motor Drive
Compatible
Not compatible
Compatible
Not compatible
5 m or less
(Note 2)
P C
G4
G3
Regenerative
option
Cooling fan
(Note 4)
R1 S1
MR-J4-B-RJ020
HA-_FS/HC-_FS
HG motor Drive
motor Drive
Not compatible Compatible
Compatible Not compatible
Not compatible Compatible
Compatible Not compatible