Chapter 1 Functions And Configuration; Description - Mitsubishi Electric Melservo-J4 MR-J4-DU*B4-RJ100 Series Instruction Manual

1
FUNCTIONS AND CONFIGURATION
The following items are the same as those for MR-J4-_B_(-RJ). Refer to the section of the detailed explanation field for
details. "MR-J4-DU_B_" means "MR-CV_/MR-CR55K_/MR-J4-DU_(-RJ) Instruction Manual".
Item
Function block diagram
Standard specifications
*1
Structure
*1 Do not connect an external encoder to the CN2L connector of the MR-J4-DU_B4-RJ100 drive unit.
1.1

Description

This Instruction Manual describes MR-J4-DU_B4-RJ100 drive units and MR-CV55K4_ power regeneration converter units
compatible with parallel drive systems.
Parallel drive systems drive a servo motor with multiple MR-J4-DU_B4-RJ100 drive units and MR-CV55K4_ power
regeneration converter units connected. The encoder cables are wired by the daisy chain method. Delivering the encoder
information to all servo amplifiers, from encoder master servo amplifiers to encoder slave servo amplifiers, ensures reduced
wiring. A encoder distribution unit is not required.
The following shows a system that drives a servo motor with four MR-J4-DU_B4-RJ100 drive units and four MR-CV55K4_
power regeneration converter units connected. For the number of drive units required to be connected to one servo motor,
refer to the following.
Page 13 Combinations of power regeneration converter units, drive units, and servo motors
Servo system
controller
SSCNET III/H
Encoder master servo amplifier
Power
regeneration Drive
converter unit 1 unit 1
1 FUNCTIONS AND CONFIGURATION
12
1.1 Description
Encoder slave servo amplifier 1
Power
regeneration Drive
converter unit 2 unit 2
Servo motor
Detailed explanation
MR-J4-DU_B_ section 3.1
MR-J4-DU_B_ section 1.4
MR-J4-DU_B_ sections 3.2 and 5.1
Encoder slave servo amplifier 2
Power
regeneration Drive
converter unit 3 unit 3
Encoder slave servo amplifier 3
Power
regeneration Drive
converter unit 4 unit 4