Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
5 - 78
7.6.2 MR-J4 series
The external dynamic brake is designed to bring the servo motor to a sudden stop when a power failure
occurs or the protective circuit is activated. For MR-J4-DU_A_ drive unit, assign DB to any of CN1-22 to
CN1-25, CN1-49, CN1-13 and CN1-14 pins in [Pr. PD23] to [Pr. PD26], [Pr. PD28] and [Pr. PD47]. For MR-
J4-DU_B_ drive unit, assign DB to any of CN3-9, CN3-13, and CN3-15 pins in [Pr. PD07] to [Pr. PD09].
Converter unit
Drive unit
External dynamic brake
MR-CR-55K
MR-J4-DU30K_
DBU-37K-R1
MR-J4-DU37K_
MR-CR55K4
MR-J4-DU30K_4
DBU-55K-4-R5
MR-J4-DU37K_4
MR-J4-DU45K_4
MR-J4-DU55K_4
7.7 Dimensions
7.7.1 MR-J3 series
(1) MR-J3-CR55K_
[Unit: mm]
7
338
328
300
Approx. 200
180
380
360
10
A
pprox. 10
20
Approx. 20
Approx. 80
260
128
TE1-2
TE2-2
TE3
TE1-1
CHARGE
2- 7 Installation hole
Cooling fan
wind direction
Summary of Contents for Melservo MR-J3-100B
Page 17: ...8 MEMO ...
Page 18: ...Part 1 Summary of MR J3 MR J3W Replacement 1 1 Part 1 Summary of MR J3 MR J3W Replacement ...
Page 145: ...Part 3 Review on Replacement of MR J3 _B_ with MR J4 _B_ 3 48 MEMO ...
Page 195: ...Part 4 Replacement of MR J3W _B with MR J4W2 _B 4 50 MEMO ...
Page 277: ...Part 5 Review on Replacement of MR J3 DU_ with MR J4 DU_ 5 82 MEMO ...
Page 278: ...Part 6 Common Reference Material 6 1 Part 6 Common Reference Material ...
Page 418: ...Part 7 Review on Replacement of Motor 7 1 Part 7 Review on Replacement of Motor ...
Page 564: ...Part 9 Startup Procedure Manual 9 1 Part 9 Startup Procedure Manual ...
Page 567: ...Part 9 Startup Procedure Manual 9 4 MEMO ...
Page 589: ...L NA 03127ENG C ...