Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 185

Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_
(c) Comparison of signals
MR-J2S-_B_
Connector pin assignment
CON2
CN3
CN4
Note 1. The factory setting for MR-J4-_B_ is EM2.
2. Set with [Pr. PD07] to [Pr. PD09] for use.
3. Signals unique to MR-J4-_B_ are in parentheses.
Abbreviation
Connector pin No. (Note 3)
SG
CON2-1
(DOCOM)
EM1
CON2-2
(EM2)
CON2-3 MBR
CON2-4 DB
CON2-15 VDD
COM
CON2-18
(DICOM)
CN3-6 LA
CN3-16 LAR
CN3-7 LB
CN3-17 LBR
CN3-8 LZ
CN3-18 LZR
CN4-1 MO1
CN4-2 MO2
CN4-4 LG
Plate SD
5 - 24
MR-J4-_B_
Connector pin No. Connector pin assignment
CN3-3
CN3-20 (Note 1)
CN3-13
(Note 2)
CN3-5
CN3-10
DI1
CN3-6
MO1
CN3-16
CN3-7
CN3-17
CN3-8
CN3-18
DICOM
CN3-4
CN3-14
CN3-1
CN3-11
Plate
CN3
1 11
2 12
LG LG
DI2
3 13
4 14
MBR
DOCOM
MO2
5 15
6 16
ALM
DICOM
LA LAR
7 17
8 18
LB
LBR
LZ
LZR
9 19
10 20
INP DI3
EM2