Background: The MR-J3 servo amplifiers and compatible HF/HA/HC motors were introduced in 2003 as a highly flexible servo offering designed to fit a wide range of applications while providing industry leading technology and performance. The MR-J4 family of servo amplifiers and compatible HG motors embodies the innovative spirit of the MR-J3 and builds upon that legacy of performance and quality for a wide range of products. MR-J4 leverages cutting edge technology, providing users with a renewed competitive advantage.
Lifecycle: Introduced (2003) - Discontinued (2019)
Service Life: Repair Service is available until May 2026.
Migration Info: The MR-J4 servo family and compatible HG servo motors are the most suitable replacements. Migration details including catalog number comparisons, migration precautions, hardware, software and network compatibility can be located in the manuals provided on this site. Please contact your local Mitsubishi Distributor or sales office for further information..
For Documentation Regarding Migration - Click Here