Mitsubishi Electric MR-J2S-100B - User Manual

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General-Purpose AC Servo

MODEL

MR-J2S- B

SERVO AMPLIFIER

INSTRUCTION MANUAL

SSCNET Compatible

J2-Super Series

F

Table of Contents

Other manuals for Mitsubishi Electric MR-J2S-100B

Transition Handbook662 pages

Questions and Answers

A
Amy WoodNov 21, 2025
How to resolve overload 1 error on Mitsubishi Electric MR-J2S-100B Amplifier?
- S
  Sara JensenNov 21, 2025
  To troubleshoot an overload (Overload 1) in your Mitsubishi Electric Amplifier: * Reduce the load, review the operation pattern, or use a servo motor that provides larger output if the servo amplifier is used in excess of its continuous output current. * If the servo system is unstable and hunting, repeat acceleration/deceleration to execute auto-tuning, change the auto-tuning response setting, or set auto-tuning to OFF and make gain adjustment manually. * Review the operation pattern and install limit switches if the machine struck something. * Ensure correct connection of the servo motor, matching the servo amplifier's output terminals U, V, W to the servo motor's input terminals U, V, W. * If the encoder is faulty (when the servo motor shaft is rotated with the servo off, the...
N
Nancy AndrewsAug 25, 2025
How to troubleshoot main circuit error on Mitsubishi Electric MR-J2S-100B?
- T
  Taylor DavisAug 26, 2025
  To resolve a main circuit error in your Mitsubishi Electric Amplifier: * Ensure that the power input wires and servo motor output wires are correctly connected at the main circuit terminal block (TE1). * Change the cable if the sheathes of servo motor power cables deteriorated, resulting in a ground fault. * Replace the servo amplifier if the main circuit of the servo amplifier failed. Alarm (24) occurs if the servo is switched on after disconnecting the U, V, W power cables from the servo amplifier.
S
Shannon OlsonAug 27, 2025
What causes encoder error 1 on Mitsubishi Electric MR-J2S-100B?
- J
  Jennifer SmithAug 27, 2025
  To resolve an encoder error 1 on your Mitsubishi Electric Amplifier: * Connect the encoder connector (CN2) correctly if it is disconnected. * Change the servo motor if the encoder is faulty. * Repair or change the cable if the encoder cable is faulty due to wire breakage or shorting.
B
Brian WalkerAug 27, 2025
How to fix encoder error 2 in Mitsubishi Electric MR-J2S-100B Amplifier?
- C
  cmyersAug 27, 2025
  To resolve an encoder error 2 on your Mitsubishi Electric Amplifier: * Connect the encoder connector (CN2) correctly if it is disconnected. * Change the servo motor if the encoder is faulty. * Repair or change the cable if the encoder cable is faulty due to wire breakage or shorting.
T
Traci ButlerAug 28, 2025
What does board error mean on Mitsubishi Electric Amplifier?
- H
  Harold HahnAug 29, 2025
  To troubleshoot a board error on your Mitsubishi Electric Amplifier: * Change the servo amplifier if there are faulty parts in the servo amplifier. Alarm (17) occurs if power is switched on after disconnection of all cable but the control circuit power supply cable. * Correctly connect the output terminals U, V, W of the servo amplifier and the input terminals U, V, W of the servo motor if they are not connected.
E
Eric McculloughSep 22, 2025
Why is my Mitsubishi Electric Amplifier showing main circuit device overheat?
- M
  Michael AbbottSep 22, 2025
  To address a main circuit device overheat issue in your Mitsubishi Electric Amplifier: * Change the servo amplifier if it is faulty. * Review the drive method if the power supply was turned on and off continuously by overloaded status. * If the air cooling fan of the servo amplifier stops, change the servo amplifier or cooling fan and reduce ambient temperature.
G
Grace WebbSep 17, 2025
What to do if Mitsubishi Electric Amplifier showing undervoltage?
- D
  Destiny SmithSep 17, 2025
  To resolve an undervoltage issue with your Mitsubishi Electric Amplifier: * Review the power supply if the power supply voltage is low. * Change the servo amplifier if there are faulty parts in the servo amplifier. Alarm (10) occurs if power is switched on after CN1A, CN1B and CN3 connectors are disconnected.
C
Christopher RodriguezSep 18, 2025
What causes absolute position erase in Mitsubishi Electric MR-J2S-100B Amplifier?
- C
  Chris SteeleSep 18, 2025
  To address an absolute position erase on your Mitsubishi Electric Amplifier: * Change the battery if the battery voltage is low and always make home position setting again. * If power was switched on for the first time in the absolute position detection system, after leaving the alarm occurring for a few minutes, switch power off, then on again and always make home position setting again.
B
Brett CollinsSep 6, 2025
What does memory error 1 mean on Mitsubishi Electric Amplifier?
- L
  ldaughertySep 6, 2025
  Change the servo amplifier if there are faulty parts in the servo amplifier. Alarm (any of 12 and 13) occurs if power is switched on after disconnection of all cables but the control circuit power supply cables.
B
bethdaySep 3, 2025
How to solve transfer error in Mitsubishi Electric MR-J2S-100B?
- H
  henryyatesSep 3, 2025
  To resolve a transfer error on your Mitsubishi Electric Amplifier: * Connect the connector of the bus cable if the bus cable is disconnected. * Change the cable if the bus cable is faulty. * Change the servo amplifier if the printed board is faulty. * Connect the termination connector if it is disconnected.

Summary

Safety Instructions

General Safety Precautions

Always read and follow safety instructions before installation, operation, and maintenance.

Warning and Caution Levels

Functions and Configuration

Signals and Wiring

Control Signal System Connection Examples

Illustrates connection examples for control signal systems with servo amplifiers.

I;O Signal Explanations

Details the functions and pin assignments of I/O signals for connectors.

Power Line Circuit Examples

Servo Motor with Electromagnetic Brake

Operation and Display

Startup Procedure

Test Operation Mode

Describes functions for confirming servo operation without machine connection.

Parameters

Parameter Lists

Comprehensive list of basic, adjustment, and expansion parameters with their settings.

General Gain Adjustment

Auto Tuning Modes

Details auto tuning modes 1 and 2 for automatic gain adjustment.

Manual Mode 1 Adjustment

Troubleshooting

Alarm and Warning List

Lists all alarms and warnings with their display codes and causes.

Remedies for Alarms

Provides actions to resolve specific alarm conditions.

Options and Auxiliary Equipment

Regenerative Brake Options

Cables and Connectors

MR Configurator Software

Mitsubishi Electric MR-J2S-100B Specifications

General

Series	MR-J2S
Model	MR-J2S-100B
Type	Servo Amplifier
Rated Output	100 W
Control Mode	Position Control, Speed Control, Torque Control
Position Control	Yes
Speed Control	Yes
Torque Control	Yes
Communication	Yes
Feedback	Incremental Encoder
Input Voltage	200 to 230 VAC
Input Phase	3-phase
Communication Interface	RS-422/485
Protection Functions	Overcurrent, Overvoltage

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