Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 235

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
(3) Drive unit (SSCNET interface)
(a) Connector comparison table
For details on signals, refer to each servo amplifier instruction manual.
MR-J3-DU_B_
(b) List of connector and terminal block correspondence
MR-J3-DU_B_
No.
Connector name
①
SSCNET III cable connector
②
SSCNET III cable connector
③
Encoder connector
④
I/O signal connector
⑤
Battery connector
⑥
USB communication connector
⑦
⑧
Converter unit connectors
Converter unit connectors
⑨
⑩
Motor power supply terminals
⑪ L+/L- terminals
⑫
Control circuit terminal L11/L21
Connector
No.
No.
①
CN1A SSCNET III cable connector
CN1B
②
SSCNET III cable connector
CN2
③
Encoder connector
④
CN3 I/O signal connector
⑤
CN4 Battery connector
CN5
⑥
USB communication connector
→
⑦
STO input signal connector
⑧
CN40A Protection coordination connector
⑨
CN40B
Servo motor power output
⑩
TE1
terminal
TE2-1/TE2 ⑪ L+/L- terminal
⑫
TE3 Control circuit terminal L11/L21
5 - 34
MR-J4-DU_B_
MR-J4-DU_B_
Connector
Connector name
Precautions
No.
CN1A
CN1B
When connected
to an HG-JR
motor, the encoder
CN2
cable needs to be
changed.
CN3
Use the dedicated
CN4 battery of each
series.
CN5
When not using
the STO function,
attach the short-
circuit connector
CN8
supplied with the
drive unit to CN8
(STO I/O signal
connector).
CN40A
The structure of
TE1
the main circuit
terminal block
TE2-1
varies depending
on the capacity.
Refer to "Part 7
TE3
Common
Reference
Material"