Specifications

ManualsBrandsMitsubishi ManualsAmplifierMelservo-J2-SUPER series

Cautions Concerning Use

take measures on the machine side to ensure that oil from

the gear box does not get into the motor.

• If the servomotor has been running for some time, do not

touch it immediately after the power has been shutoff. It is

possible that the motor will be very hot, and touching it

could burn skin.

• The optional regeneration unit becomes hot (temperature

rise of 100°C or more) with frequent use. Do not install with-

in flammable objects or objects subject to thermal deforma-

tion. Take care to ensure that electric wires do not come into

contact with the main unit.

• Carefully consider the cable clamping method, and make

sure that bending stress and the stress of the cable’s own

weight are not applied on the cable connection section.

• If using in an application where the servomotor moves,

select the cable bending radius according to the required

bending life and wire type.

• Fix the power and encoder cables led out from the servo-

motor onto the servomotor so that they do not move. Failure

to do so could result in disconnections.

Do not modify the connector or terminals, etc., on the end of

the cable.

Grounding

• Always use Class 3 grounding to prevent electric shocks and

to stabilize the potential in the control circuit.

• To ground the servomotor and servo amplifier at one point,

connect the grounding terminal from each, and ground from

the servo amplifier side.

• Faults such as a deviation in position could occur if the

grounding is insufficient.

Wiring

• When a power-supply is applied to the amp’s output termi-

nal (U, V, W), the amp will be damaged. Before switching

the power on, perform thorough wiring and sequence

checks to ensure that there are no wiring errors, etc.

• When a power-supply is applied to the motor’s input termi-

nal (U, V, W), the motor will be burned out. Connect the

motor to the amp’s output terminal (U, V, W).

• Match the phase of the motor input terminal (U, V, W) to the

output terminal (U, V, W) before connecting. If they are not

the same, motor control cannot be performed.

• In the case of position or speed control mode, connect the

stroke end signal (LSP, LSN) to the common terminal (SG). If

it is not connected, the motor will not rotate.

Factory settings

• All possible motor and amp combinations are predeter-

mined. Confirm the model of the motor and amp to be used

before installation.

• For the MR-J2S-A models, select parameter mode No.0 for

the control mode to set position, speed and torque. For the

MR-J2S-B models, these are selected by a controller.

• As for 22kW or smaller, when using the optional regenera-

tion units, please change parameter No.0 (MR-J2S-A, MR-J2S-

CP or MR-J2S-CL models) or parameter No.2 (MR-J2S-B mod-

els). When using the 30kW or larger capacity, change the

converter unit parameter No. 0. The regeneration option unit

is disabled as the default, so the parameter must be changed

to increase the performance.

To ensure safe use

• To ensure the safe and proper use of the product, we ask

that you read the instruction manual and “MR-J2S INSTRUC-

TION MANUAL” prior to its use.

• These products are not designed or manufactured for use in

machinery and systems where people’s safety is at stake.

• When considering the product for use in such special appli-

cations as equipment or systems employed in passenger

transportation, medicine, aerospace, nuclear power genera-

tion, or underwater relays, please contact our sales repre-

sentative.

• These products have been manufactured to the most rigor-

ous quality standards. However, we ask that you employ

safety devices when using the product in equipment in

which any failure on its part can be expected to cause a seri-

ous accident or loss.

Cautions concerning use

Transport and installation of motor

• Protect the motor from impact during handling. When

installing pulley or coupling, do not hammer on the shaft.

Impact can damage the encoder. In the case of motor with

key, install pulley or coupling with screw of shaft-end. Use a

pulley extractor when taking off the pulley.

• Do not apply a load exceeding the tolerable load onto the

servomotor shaft. The shaft could break.

Installation

• Avoid installation in an environment in which oil mist, dust,

etc. are in the air. When using in such an environment,

enclose the servo-amp in an airtight panel. Protect the motor

by furnishing a cover for it or taking similar measures.

• Mount the amp vertically on a wall.

• When installing several amplifiers in a row in a sealed panel,

leave at least 10mm open between each amplifier. Note that

when using the MR-J2S-30KM(4) or larger capacity, leave at

least 20mm open between the amplifiers. Leave 100mm or

more open in the upward direction, and 120mm or more

open in the downward direction.

When using one amplifier, always leave 40mm or more open

in the upward direction and 120mm or more open in the

downward direction.

To ensure the life and reliability, keep as much space open

toward the top plate so that heat does not build up.

Take special care when installing several amplifiers in a row.

• While installing a single motor, the motor can be installed

horizontally or vertically. When installing vertical (shaft-up),

10mm or

100mm or more

for several units

20mm for

30kW or larger

40mm or

120mm or