MELSERVO-J4

Servo Amplifiers

MR-J4-GF(-RJ)/MR-J4-A-RJ Positioning Function: Indexer (Turret) Method Positioning is executed in accordance with the specified stations (maximum of 255 stations). The servo amplifier automatically calculates the travel distance from the number of stations and gear teeth in the machine and servo motor sides set in the parameters. Item Description A-RJ GF-RJ GF

Servo Amplifiers Rotary Servo Motors Linear Servo Motors Direct Drive Motors Options/Peripheral Equipment Product List LVS/Wires Cautions

MR-J4-_GF_(-RJ)

CC-Link IE Field Network communication

DI/O (Input: 11 points excluding EM2 (Forced stop 2), output: 8 points) RS-422/RS-485 communication (Note 1) DI/O (Input: 11 points excluding EM2 (Forced stop 2), output: 6 points) RS-422 communication (Note 2)

Command interface

MR-J4-_A_-RJ

MR-J4-03A6-RJ

Positioning in accordance with the specified stations The maximum number of divisions: 255

Operating specification

Select from the point table with the remote register, Set the speed command data (speed and acceleration/deceleration time constants) Select the rotation speed and acceleration/deceleration time by input signal

Command method

MR-J4-_GF_(-RJ) MR-J4-_A_-RJ MR-J4-03A6-RJ

Speed command input

Rotation direction specifying indexer, shortest rotating indexer Select the override multiplying factor by input signal

System

Digital override (Note 3)

MR-J4-_GF_(-RJ) MR-J4-_A_-RJ MR-J4-03A6-RJ Rotation direction specifying indexer Shortest rotating indexer JOG operation MR-J4-_GF_(-RJ) MR-J4-_A_-RJ MR-J4-03A6-RJ MR-J4-_GF_(-RJ) MR-J4-_A_-RJ MR-J4-03A6-RJ Station JOG operation

Set by parameters or link devices

Torque limit

Set by parameters or external analog input (0 V DC to +10 V DC/maximum torque)

Positions to the specified station. Rotation direction settable

Automatic operation mode Manual operation mode

Positions to the specified station. Rotates in the shorter direction from the current position. Decelerates to a stop regardless of the station

Operation mode

Rotates in a direction specified by the rotation direction decision when the start signal turns on. Positions to the nearest station where the servo motor can decelerate to a stop when the start signal turns off.

Torque limit changing dog type, Torque limit changing data set type Homing on current position (Method 35, 37) Torque limit changing dog type, Torque limit changing data set type Absolute position detection, overtravel prevention with limit switches

Home position return mode

Other functions Absolute position detection, backlash compensation, overtravel prevention with external limit switches (LSP/LSN), digital override function Notes: 1. Compatible with RS-422 communication (Mitsubishi Electric general-purpose AC servo protocol) and RS-485 communication (MODBUS ® RTU protocol). 2. Compatible with RS-422 communication (Mitsubishi Electric general-purpose AC servo protocol). 3. Supported by MR-J4-_A_-RJ and MR-J4-03A6-RJ.

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