MELSERVO-J4

A Variety of Functions Harmony with Machine

A Va r i e t y of Func t i ons for Va r i ous App l i ca t i ons

* Use a compatible controller.

RnMTCPU RD77MS

Q17nDSCPU

Q170MSCPU

Tightening & Press-fit Control

Patented

FX5SSC

QD77MS

LD77MS

This function switches position/speed control mode to torque control mode smoothly without a stop or a sudden change in speed and torque, and thus reduces load to a machine. This function is best suit for an application where control is switched from position to torque such as Tightening & Press-fit control or insertion of a work, and cap or screw tightening. * This function is supported by MR-J4-B/MR-J4W2-B/MR-J4W3-B.

MR-J4-B MR-J4W2-B MR-J4W3-B

SSCNET III/H compatible Motion controller

Tightening & Press-fit control with setting torque after collision

Application examples [Press-fit machines]

Tightening & Press-fit control

Servo motor

Position feedback

Position feedback

[Screw tightening machines]

Workpiece

Control mode command

Motor current

Position/speed control

Torque control

RnMTCPU RD77MS

Q17nDSCPU

Q170MSCPU

Master-slave Operation Function

FX5SSC

QD77MS

LD77MS

The master-slave operation function enables the torque of the master axis to be transmitted to the slave axes via SSCNET III/H and to control the slave axes with the same torque as the master axis. No special wiring is necessary.

SSCNET III/H compatible Motion controller

Master axis Slave axis

Position control or speed control MR-J4-B

Application examples [Press machines]

Torque control MR-J4-B

[Material handling systems]

Command

Command

Drives the servo motor with the same torque as the master axis.

RnMTCPU RD77MS

Q17nDSCPU

Q170MSCPU

Scale Measurement Function

RD77GF

QD77GF

FX5SSC

QD77MS

LD77MS

The scale measurement function of MR-J4-GF/MR-J4-B/MR-J4W2-B* 1 servo amplifiers* 2 enables to transmit position information of a scale measurement encoder to the controller when the scale measurement encoder is connected in semi closed loop control. The data of linear or synchronous encoders are transmitted to the servo system controller via the servo amplifier, resulting in less wiring. *1. This function is not supported by MR-J4W2-0303B6. *2. Use corresponding servo amplifier (MR-J4-GF/MR-J4-GF-RJ/ MR-J4-B/MR-J4-B-RJ) for load-side encoder.

Motion controller

Command

Synchronous encoder data

Synchronous encoder

Rotary Knife

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