Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 469

[Appendix 1] Summary of MR-J4_B_-RJ020 + MR-J4-T20
3. SYSTEM CONFIGURATION
For DIO,
an external 24 V is required
MR-J3CH00
(J2S → J3) Conversion cable (Note 3)
HC motor
MR-EK(ES)CBL_M
HC motor
CN2L: Not used
MR-J4-_B_-RJ020
Note 1. While the SSCNET connector CN10A and CN10B use the same D-sub connector as MR-J2S-_B_, the RS-232C connector
uses a mini D-sub connector. Therefore, the MR-J4T20CH00 junction cable is used to connect to a conventional cable (MR-
CPCATCBL3M).
2. DIO (DI: one point; DO: one point; ABZ output; Monitor output) uses CN3 of MR-J4. RS-232C is connected using CN30 of MR-
J4-T20.
3. Use MR-J3CH00 or SC-J2SJ4ENC03M (manufactured by Mitsubishi Electric System & Service Co., Ltd.).
4. The application "MR-J4(W)-B Change mode" or "MR Mode Change" through USB communication function of the servo
amplifier is necessary for using the MR-J4-_B_-RJ020 in J4/J3 convertible mode.
It is not necessary when using MR-J4-_B_-RJ020 in J2S compatible mode.
The application "MR-J4(W)-B Change mode" or "MR Mode Change" are available with MR Configurator2 Version 1.27D and
later.
5. When a servo amplifier other than MR-J2S-_B_ series, MR-J2M-B series and MR-J2-03B5 is used with a controller, the MR-
J4-_B_-RJ020 + MR-J4-T20 SSCNET conversion unit cannot be used.
Width: 12 mm
CN9
CN7
MR-J4-T20
POINT
For large capacity of 30 kW or more, the position of PN terminal is different, so
also change the converter unit when replacing MR-J2S-_B_.
Appendix 1-6
[Case 1] (Note 5)
SSCNET
MR-J2S-_B_ MR-J2S-_B_
When maintaining MR-J2S-_B_
CN10A
CN10B
0.2 m
CN30
Junction cable (Note 2)
CN30 (Note 1)
MiniD-sub
MR-J4T20CH00
[Case 2]
SSCNET
MR-J4-_B_ + SSCNET
When using conversion unit
SSCNET cable
MR-J2HBUS_M
RS-232C cable
MR-CPCATCBL3M
PC (SETUP161E)