Mitsubishi Electric MELSERVO-J2-Super Series, Transition Handbook

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Part 6: Review on Replacement of MR-J2M with MR-J4
6 - 2
Part 6: Review on Replacement of MR-J2M with MR-J4
1. SUMMARY
This document describes the changes that are applied to when replacing a system using the MR-J2M series
with a system using the MR-J4 series. The functions and performance of the MR-J4 series are greatly
improved from the MR-J2M series. Mounting dimensions of the both series are significantly different. For the
details of the differences, refer to the descriptions in this document.
2. CASE STUDY ON REPLACEMENT OF MR-J2M
2.1 Replacement Method
(1) Simultaneous replacement with MR-J4-_A_ and an HG motor
The currently used connectors or cables need to be replaced. The existing cables cannot be used as
they are.
2.2 Equipment Configuration
The models for replacement of both the servo amplifier and servo motor as a set are shown.
Series
Model
Replacement
model (example)
Mounting compatibility
(
○
: Compatible)
Base unit Interface unit Drive Unit
200 V AC
General-purpose
interface
MR-J2M-BU_ MR-J2M-P8A
MR-J2M-10DU MR-J4-10A Note
MR-J2M-20DU MR-J4-20A Note
MR-J2M-40DU MR-J4-40A Note
MR-J2M-70DU MR-J4-70A Note
200 V AC
SSCNET interface
MR-J2M-BU_ MR-J2M-P8B
MR-J2M-10DU MR-J4-10B Note
MR-J2M-20DU MR-J4-20B Note
MR-J2M-40DU MR-J4-40B Note
MR-J2M-70DU MR-J4-70B Note
Note. These replacement models do not have compatibility in mounting.
MR-J4-_A_
HG motor
MR-J2M-A
HC_FS motor
[Existing system]
Pulse train command
Controller
Pulse train command
Controller
[System after simultaneous replacement]
[When replacing only the servo amplifiers]
MR-J4-_A_
HC_FS motor
(Replacement example)
Pulse train command
Controller