MELSERVO-J4

Linear Servo Motors

LM-H3 Series Specifications

Primary side (coil) Secondary side (magnet)

P3A-12P CSS0

P3B-24P CSS0

P3C-36P CSS0

P3D-48P CSS0

P7A-24P ASS0

P7B-48P ASS0

P7C-72P ASS0

P7D-96P ASS0

LM-H3 P2A-07P- BSS0

Linear servo motor model

S20-288-BSS0 S20-384-BSS0 S20-480-BSS0 S20-768-BSS0

S30-288-CSS0 S30-384-CSS0 S30-480-CSS0 S30-768-CSS0

S70-288-ASS0 S70-384-ASS0 S70-480-ASS0 S70-768-ASS0

LM-H3

MR-J4-

Compatible servo amplifier model Power supply capacity

Refer to "Combinations of Linear Servo Motor and Servo Amplifier" on p. 3-5 in this catalog.

MR-J4W_-

[kVA]

0.9

0.9

1.3

1.9

3.5

1.3

3.5

3.8

5.5

Cooling method

Natural cooling

Continuous Maximum

[N] [N] [N] [A] [A]

70

120 300

240 600

360 900

480

240 600

480

720

960

(Note 5)

Thrust

175

1200

1200

1800

2400

Maximum speed (Note 1) Magnetic attraction force

[m/s]

3.0

630 1.8 5.8 175

1100

2200

3300

4400

2200

4400

6600 10.2 28.6

8800 13.6 38.1

Rated current Maximum current

1.7 5.0 95

3.4 9.9 108 271

5.1

6.8

3.4 9.6 108 241

6.8

14.9

19.8 300

19.1 308

MR-J4-

[times/min]

78

210

159

Regenerative braking frequency (Note 2)

MR-J4W_- [times/min] 173 (Note 3) 95 (Note 4)

197

-

-

-

-

Recommended load to motor mass ratio

Maximum of 35 times the mass of the linear servo motor primary side

Thermistor

Built-in 155 (F)

Insulation class

Structure

Open (IP rating: IP00)

Ambient temperature Ambient humidity

Operation: 0 °C to 40 °C (non-freezing), storage: -15 °C to 70 °C (non-freezing) Operation: 10 %RH to 80 %RH (non-condensing), storage: 10 %RH to 90 %RH (non-condensing) Indoors (no direct sunlight); no corrosive gas, inflammable gas, oil mist or dust

Ambience

Environment

Altitude

1000 m or less above sea level

Vibration resistance

49 m/s 2

Compliance with global standards

Refer to "Compliance with Global Standards and Regulations" on p. 55 in this catalog.

Primary side (coil)

[kg]

0.9

1.3

2.3

3.3

4.3

2.2

3.9

5.6

7.3

288 mm/ pc: 0.7 384 mm/ pc: 0.9 480 mm/ pc: 1.1 768 mm/ pc: 1.8

288 mm/pc: 1.0 384 mm/pc: 1.4 480 mm/pc: 1.7 768 mm/pc: 2.7

288 mm/pc: 2.8 384 mm/pc: 3.7 480 mm/pc: 4.7 768 mm/pc: 7.4

Mass

Secondary side (magnet)

[kg]

Notes: 1. The maximum speed of the linear servo motor or the rated speed of the linear encoder, whichever is smaller, is the upper limit of the linear servo motor speed. 2. The regenerative braking frequency shows the permissible frequency when the linear servo motor, without a load and a regenerative option, decelerates from the maximum speed to a stop. When a load is connected; however, the value will be the table value/(m+1), where m = Mass of load/Mass of motor primary side (coil). Take measures to keep the regenerative power [W] during operation below the permissible regenerative power [W]. Use caution, especially when the operating speed changes frequently or when the regeneration is constant (as with vertical feeds). Select the most suitable regenerative option for your system with our capacity selection software. Refer to "Regenerative Option" in this catalog for the permissible regenerative power [W] when regenerative option is used. 3. This value is applicable when MR-J4W2-44B or MR-J4W3-444B is used. The value is 942 for MR-J4W2-77B or MR-J4W2-1010B. 4. This value is applicable when MR-J4W2-44B or MR-J4W3-444B is used. The value is 497 for MR-J4W2-77B or MR-J4W2-1010B. 5. Use the linear servo motor with 70% or less of the effective load ratio when it is in the servo lock state or in a small reciprocating motion.

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