MELSERVO-J4

Options/Peripheral Equipment

Regenerative Option

GF-RJ GF

B

B-RJ

WB

A

A-RJ

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

Dimensions

Connections

[Unit: mm]

MR-RB30, MR-RB3N, MR-RB31, MR-RB32, MR-RB34 (for 200 V) MR-RB3M-4, MR-RB3G-4, MR-RB34-4, MR-RB3U-4 (for 400 V)

For MR-J4-500GF/B/A or smaller, MR-J4-350GF4/B4/A4 or smaller, and MR-J4W_-B

Cooling fan mounting screw (2-M4 screw) (Note 2, 3)

8.5 125 8.5

Terminal arrangement

P C

150

142

82.5

G3 G4

Disconnect P+ and D.

Servo amplifier

G4 G3 C P

30

Regenerative option

Terminal screw size: M4 Mounting screw size: M6

7

101.5

82.5

A

318

90 100

10

P C

P+

B

Variable dimensions Mass [kg] A B

D C

Cooling fan intake (Note 2, 3)

Model

G3 G4

(Note 1)

(Note 4)

MR-RB30 MR-RB3N MR-RB31 MR-RB32 MR-RB34 MR-RB3M-4 MR-RB3G-4 MR-RB34-4 MR-RB3U-4

(30)

5 m or shorter

17 335

Cooling fan (Note 2, 3)

79

2.9

23 341

MR-RB50, MR-RB5N, MR-RB51 (for 200 V) MR-RB5G-4, MR-RB54-4, MR-RB5U-4 (for 400 V)

For MR-J4-500GF4/B4/A4 and MR-J4-700GF(4)/B(4)/A(4)

Cooling fan mounting screw (2-M3 screw) (Note 2) provided on the opposite side

49

82.5

162.5 12.5 12.5 162.5 12

Terminal arrangement

P C

7 ✕ 14 slotted hole

Disconnect the wires for the built-in regenerative resistor (P+ and C).

Servo amplifier

G3 G4

Regenerative option

Cooling fan intake (Note 2)

P C

P+

82.5

350

Terminal screw size: M4 Mounting screw size: M6

C

Built-in regenerative resistor

G3 G4

Variable dimensions Mass [kg] A B

133

(Note 4)

(Note 1)

Model

(30)

7 120 8

A

2.3

200

B

5 m or shorter

MR-RB50 MR-RB5N MR-RB51 MR-RB5G-4 MR-RB54-4 MR-RB5U-4

Cooling fan (Note 2, 3)

17 217

5.6

23 223

Notes: 1. Create a sequence circuit that turns off the magnetic contactor when abnormal overheating occurs. 2. When using MR-RB3M-4, MR-RB3G-4, MR-RB34-4, MR-RB3U-4, MR-RB50, MR-RB5N, MR-RB51, MR-RB5G-4, MR-RB54-4, or MR-RB5U-4, cool the unit forcibly with a cooling fan (92 mm × 92 mm, minimum air flow: 1.0 m 3 /min). The cooling fan must be prepared by user. 3. When MR-RB30, MR-RB3N, MR-RB31, MR-RB32, or MR-RB34 is used, it may be necessary to cool the unit forcibly with a cooling fan (92 mm × 92 mm, minimum air flow: 1.0 m 3 /min), depending on the operating environment. Refer to relevant Servo Amplifier Instruction Manual for details. The cooling fan must be prepared by user. 4. G3 and G4 terminals are thermal sensor. G3-G4 opens when the regenerative option overheats abnormally.

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