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2. SIGNALS AND WIRING
2.3 Connectors and pin assignment
The servo amplifier front view shown is that of the MR-J4-20B-LL or less. For external appearance and
connector arrangements of other servo amplifiers, refer to chapter 9 of "MR-J4-_B_(-RJ) Servo Amplifier
Instruction Manual" and chapter 7 of "MR-J4-DU_(-RJ)/MR-CR55K_ Instruction Manual".
CN8
For the STO I/O signal
connector, refer to section
13.2 of "MR-J4-_B_(-RJ)
Servo Amplifier Instruction
Manual".
CN2
2
6
10
LG
4
8
THM2
MRR
MXR
1
5
9
P5
3
7
BAT
THM1
MR
MX
The frames of the CN2 and CN3
connectors are connected to the
protective earth terminal in the
servo amplifier.
POINT
The pin assignment of the connectors is as viewed from the cable connector
wiring section.
For the STO I/O signal connector (CN8), refer to chapter 13 of "MR-J4-_B_(-RJ)
Servo Amplifier Instruction Manual".
For the CN3 connector, securely connect the shielded external conductor of the
cable to the ground plate and fix it to the connector shell.
Screw
Cable
Screw
Ground plate
CN5 (USB connector)
Refer to section 6.1.
CN1A
Connector for SSCNET III
cable for previous servo
amplifier axis
CN1B
Connector for SSCNET III
cable for next servo
amplifier axis
CN4
(Battery connector)
Refer to section 11.8 of
"MR-J4-_B(-RJ) Servo
Amplifier Instruction Manual".
2 - 6
CN3
1
11
2
12
LG
LG
AD2
3
13
4
14
MBR
DOCOM
MO1
MO2
5
15
6
16
AD0
DICOM
7
17
8
18
9
19
10
20
INP
AD1
EM2
DICOM
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