Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 226

Part 6: Review on Replacement of MR-J2M with MR-J4
MR-J2M-A
Connector pin assignment
Signal
symbol
Connector pin No.
CN1A-35 (Slot 1)
CN1A-8 (Slot 2)
CN1A-30 (Slot 3)
CN1A-3 (Slot 4)
INP
CN1B-35 (Slot 5)
CN1B-8 (Slot 6)
CN1B-30 (Slot 7)
CN1B-3 (Slot 8)
CN1A-37 (Slot 1)
CN1A-10 (Slot 2)
CN1A-32 (Slot 3)
CN1A-5 (Slot 4)
SON
CN1B-37 (Slot 5)
CN1B-10 (Slot 6)
CN1B-32 (Slot 7)
CN1B-5 (Slot 8)
CN1A-36 (Slot 1)
CN1A-9 (Slot 2)
CN1A-31 (Slot 3)
CN1A-4 (Slot 4)
RES
CN1B-36 (Slot 5)
CN1B-9 (Slot 6)
CN1B-31 (Slot 7)
CN1B-4 (Slot 8)
CN5-19 (Slot 1-4) EMG
CN5-20 (Slot 5-8) (EM2)
CN5-1 (Slot 1)
CN5-3 (Slot 2)
CN5-5 (Slot 3)
CN5-7 (Slot 4)
LSP
CN5-11 (Slot 5)
CN5-13 (Slot 6)
CN5-15 (Slot 7)
CN5-17 (Slot 8)
CN5-2 (Slot 1)
CN5-4 (Slot 2)
CN5-6 (Slot 3)
CN5-10 (Slot 4)
LSN
CN5-12 (Slot 5)
CN5-14 (Slot 6)
CN5-16 (Slot 7)
CN5-18 (Slot 8)
CN1A-27 (Slot 1-4)
ALM
CN1B-27 (Slot 5-8)
CN3-1
CN3-3
LG
CN3-11
CN3-13
CN3-4 MO1
CN3-14 MO2
CN3-7 MO3
6 - 7
MR-J4-_A_
Connector pin No. Connector pin assignment
CN1-22
CN1-24
CN1-15
CN1-19
CN1-42
CN1-43
CN1-44
CN1-48
CN6-1
CN6-2
CN6-3
-
CN6