MELSERVO-J4

Servo Amplifiers

MR-J4W2-B/MR-J4W3-B Connections with Peripheral Equipment (Note 1) Peripheral equipment is connected to MR-J4W2-B/MR-J4W3-B as described below. Connectors, cables, options, and other necessary equipment are available so that users can set up the servo amplifier easily and start using it right away.

WB

Charge lamp The lamp lights when the main circuit power supply is charged. Molded-case circuit breaker (MCCB) This protects the power supply line.

Display (Note 2) Servo amplifier status and alarm number are displayed.

Axis setting part (Note 2) Select an axis with the axis selection rotary switch (SW1) and the auxiliary axis number setting switches (SW2-5 and SW2-6). USB communication connector (CN5) Connect with a personal computer, and use MR Configurator2. Parameter setting and monitoring are possible. Use an optional USB cable (MR-J3USBCBL3M).

Magnetic contactor (MC) This turns off the main circuit power supply to the servo amplifier when an alarm is triggered.

Power factor improving AC reactor (option) This boosts the power factor of servo amplifier and reduces the power supply capacity.

I/O signal connector (CN3) Connect the forced stop input, the in-position, the electromagnetic brake interlock, and the malfunction signals.

STO I/O signal connector (CN8)

Regenerative option (option)

Connect MR-J3-D05 safety logic unit or an external safety relay. Use an option STO cable (MR-D05UDL3M-B).

Encoder cable (option)

Servo motor power cable (option)

SSCNET III cable (option)

SSCNET III/H compatible servo system controller

RD77MS/ QD77MS

R32MTCPU/R16MTCPU Q173DSCPU/Q172DSCPU

Q170MSCPU

(PE)

(Note 3)

Rotary servo motor (The picture is that of HG-KR053.)

FX5-_SSC-S

LD77MS

Encoder connector (CN2A/B) Connect the servo motor encoder using an option cable or connector set.

Linear servo motor

SSCNET III/H connector (CN1A) Connect the servo system controller or the previous servo amplifier axis. SSCNET III/H connector (CN1B) Connect the next servo amplifier axis. Be sure to attach a cap to CN1B connector of the final axis.

Direct drive motor

Battery connector (CN4)

Battery case (MR-BT6VCASE) and batteries (MR-BAT6V1) are required when configuring absolute position detection system with a rotary servo motor or a direct drive motor.

SSCNET III cable (option)

Battery

Battery case

Notes: 1. The connection with the peripheral equipment is an example for MR-J4W2-22B. CNP3C and CN2C connectors are available for MR-J4W3-B servo amplifier. Refer to "MR-J4W2-_B MR-J4W3-_B MR-J4W2-0303B6 Servo Amplifier Instruction Manual" for the actual connections of the multi-axis servo amplifier. 2. This picture shows when the display cover is open. 3. Connect the grounding terminal of the servo motor to of CNP3A, CNP3B, and CNP3C. Connect the protective earth (PE) terminal ( ) located on the lower front of the servo amplifier to the cabinet protective earth (PE).

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