Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 105

Part 3: Review on Replacement of MR-J3-_B_ with MR-J4-_B_
(3) Gradual replacement of MR-J3-_B_ with MR-J4-_B_
1: Current system
SSCNET III servo system
controller
MR-
J3-_B_
series servo motor
J3
Note 1. The MR-J4-_B_ series has "J3 compatibility mode". MR-J4-_B_ and MR-J3-_B_ servo amplifiers can be used together.
Optical fiber cables for the conventional SSCNET III can be used as they are.
2. Change the settings of the MR-J4-_B_ servo amplifier to "J4 mode" using the application software "MR-J4(W)-B mode
selection" (*1). The servo amplifiers and servo motors can be used as they are.
(*1): The application software is available with MR Configurator2 version 1.12N or later.
POINT
MR-J3-_B_ cannot drive an HG motor. When the servo motor is replaced with
an HG motor, simultaneous replacement with MR-J4-_B_ and an HG motor is
necessary.
If the existing system is any of the combinations in the following table, it is
recommended to replace both the servo amplifier and servo motor with an MR-
J4-_B_ and HG motor at the same time. When an HG motor is adopted, the
capacity of the servo amplifier needs to be changed. (Consider replacement,
referring to "torque characteristics" described in "Part 8: Replacement of Motor".)
The low inertia "HG-JR motor" is recommended for the replacement of "HC-LP
motor".
To use a servo motor other than the motors listed in following table, check the
compatibility with the equipment because the motor inertia, etc. is different.
Existing device models
Servo motor
HC-RP103(B)G5 1/_
HC-RP203(B)G5 1/_
HC-RP353(B)G5 1/_
HC-RP103(B)G7 1/_
HC-RP203(B)G7 1/_
HC-RP353(B)G7 1/_
HC-LP52(B)
HC-LP102(B)
HC-LP152(B)
2: Only one axis replaced
(Note 1)
SSCNET III servo system
controller
MR-
J4-_B_
MR-
J3-_B_
series
J3
servo motor
series
J4
servo motor
Replacement models for simultaneous
Servo amplifier Servo motor
MR-J3-200B(N)(-RT) HG-SR102(B)G5 1/_
MR-J3-350B HG-SR202(B)G5 1/_
MR-J3-500B HG-SR352(B)G5 1/_
MR-J3-200B(N)(-RT) HG-SR102(B)G7 1/_
MR-J3-350B HG-SR202(B)G7 1/_
MR-J3-500B HG-SR352(B)G7 1/_
MR-J3-60B HG-JR73(B)
MR-J3-100B HG-JR153(B)
MR-J3-200B(N)(-RT) HG-JR353(B)
3: All axes replaced
SSCNET III servo system
controller
MR-
J4-_B_
series servo motor
J4
3 - 4
replacement (example)
Servo amplifier
MR-J4-100B
MR-J4-200B
MR-J4-350B
MR-J4-100B
MR-J4-200B
MR-J4-350B
MR-J4-70B
MR-J4-200B
MR-J4-350B
4: Replacement of a controller
(Note 2)
SSCNET III/H servo system
controller
MR-
J4-_B_
series servo motor
J4