Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 315

Part 6: Review on Replacement of MR-J3-_T_(DIO command/ Serial communication operation) with MR-J4-_A_-RJ
3) CN20
Signal abbreviations in parentheses are for MR-D01.
MR-J3-D01
Connector pin assignment
CN20
20 10
19 9
LG
18 8
17 7
6
16
15 5
N12R
14 4
13 3
MO2
MO1
P15R
12 2
11 1
TLA
VC
LG
LG
Note 1. To use this signal, set [Pr. Po11] to "_ _ 1 _" and enable the CN20-2 pin. When MR-D01 has not been connected, setting "1"
will trigger [AL. 37].
2. To use this signal, set [Pr. Po11] to "_ _ 1 _" and enable the CN20-12 pin. When MR-D01 has not been connected, setting "1"
will trigger [AL. 37].
Signal
abbreviation
Connector pin No.
CN20-1 LG
VC
CN20-2
(OVC)
CN20-3
M01
CN20-4
(OM01)
CN20-5
CN20-6
CN20-7
CN20-8
CN20-9 LG
CN20-10
CN20-11 LG
TLA
CN20-12
(OTLA)
CN20-13 P15R
M02
CN20-14
(OM02)
CN20-15 N12R
CN20-16
CN20-17
CN20-18
CN20-19
CN20-20
6 - 36
MR- D01
Connector pin No. Connector pin assignment
CN20-1
CN20-2 (Note 1)
CN20-3
CN20-4
19
CN20-5
CN20-6
CN20-7
17
CN20-8
CN20-9
15
CN20-10
CN20-11
N12R
CN20-12 (Note 2)
13
CN20-13
P15R
CN20-14 11
LG
CN20-15
CN20-16
CN20-17
CN20-18
CN20-19
CN20-20
CN20
20 10
9
LG
18 8
7
6
16
5
14 4
3
OMO2
OMO1
12 2
1
OVC
OTLA
LG