Mitsubishi Electric MELSEC iQ-R Series - Case Study on Migration; Whole System Migration (Recommended)

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1. OVERVIEW OF MIGRATION FROM Q17nCPUN(-T) TO RnMTCPU
1.4 Case Study on Migration
The following describes a standard case study of migrating the existing system using
Q17nCPUN(-T).
(1) Whole system migration (recommended)
The controller, servo amplifiers, servo motors, and servo network are replaced simultaneously.
Although a large-scale installation is required, the whole system migration allows the system
to operate for longer periods. (Refer to section 1.4.1.)
(2) Phased migration (When the whole system migration is difficult due to the installation
period and cost.)
The MR-J2S-B servo amplifiers are gradually replaced with the MR-J4-B servo amplifiers, and
then the controller is eventually replaced with RnMTCPU in the final phase.
(Refer to section 1.4.2.)
(3) Separate repair
This is a replacement method for when the servo amplifier or the servo motor malfunctions.
(Refer to section 1.4.3.)
Whole system
migration?
Servo amplifier
and servo motor
replacement?
(2) Phased migration
→ Refer to section 1.4.2.
(3) Separate repair
→ Refer to section 1.4.3.
1) Whole system migration
→ Refer to section 1.4.1.
NO
YES
YES
NO
Consideration of migration