Mitsubishi Melservo-J2-SUPER series - User Manual

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SH (NA) 030035-B (0701) MEE Printed in Japan Specifications subject to change without notice.

This Instruction Manual uses recycled paper.

MODEL

MODEL

CODE

General-Purpose AC Servo

MR-J2S- B-PY096

MR-J2S- B-S096(5.7kW)

MODEL

INSTRUCTION MANUAL

SSCNET Fully Closed Control Compatible

J2-Super Series

J2-Super Series MR-J2S- B-PY096 MR-J2S- B-S096(5.7kW) Instruction Manual

HEAD OFFICE : TOKYO BLDG MARUNOUCHI TOKYO 100-8310

B

B

Table of Contents

Questions and Answers:

T
Tanya RamirezAug 3, 2025
What to do if Mitsubishi Melservo-J2-SUPER Amplifier shows a full closed control error detection?
- J
  Jennifer MaciasAug 3, 2025
  If you're encountering a 'Full closed control error detection' with your Mitsubishi Amplifier, several factors could be at play. It might be due to a failure of the full closed encoder, in which case, replacement is suggested. Alternatively, the polarity of the full closed encoder might be set incorrectly; double-check its mounting orientation and re-examine parameter No. 62. An incorrect electronic gear setting (parameter Nos. 65, 66) or an incorrect resolution setting for the full closed encoder could also be the cause. You should also check the mounting state of the full closed encoder.
B
Bradley TurnerAug 9, 2025
What to do if Mitsubishi Melservo-J2-SUPER Amplifier displays full closed encoder error 1?
- L
  Leslie ReevesAug 9, 2025
  If your Mitsubishi Amplifier shows a 'Full closed encoder error 1', it could stem from several causes. A full closed encoder fault is possible, suggesting you contact the encoder manufacturer. A linear scale alarm could also be the culprit; consult Section 6.2 for details and then contact the scale manufacturer. Ensure the linear scale speed is within the specification range. Check and adjust the mounting positions of the linear scale and detection head. Noise entry could be interfering, so take noise reduction measures and contact the encoder manufacturer. Verify the MR-J2S-CLP01 connector CN1A is correctly connected. Lastly, if ALM output detection is valid in parameter No. 62, changing the full closed encoder might be necessary.
L
Laurie MillsAug 14, 2025
What to do if Mitsubishi Melservo-J2-SUPER Amplifier displays full closed encoder communication error 2?
- C
  Christina ReynoldsAug 15, 2025
  If your Mitsubishi Amplifier is showing 'Full closed encoder communication error 2', consider these potential causes: The MR-J2S-CLP01 unit might be faulty, suggesting a unit replacement. There could be a failure in the full closed encoder cable, requiring correction or replacement. A wiring mistake in the full closed encoder cable could be the issue, particularly regarding the A-, B-, and Z-phase signal and power supply wires (ensure the Z-phase wiring of the MR-J2S-CLP01 unit is connected). Lastly, a slow startup timing of the 5V power supply for the MR-J2S-CLP01 unit could be the problem, requiring you to speed up the startup timing.
C
Courtney Lewis DDSAug 20, 2025
What to do if Mitsubishi Melservo-J2-SUPER displays full closed encoder communication error 1?
- B
  Beth BrownAug 20, 2025
  If your Mitsubishi Amplifier displays 'Full closed encoder communication error 1', start by checking if the connector CN2 is disconnected and connect it correctly. The MR-J2S-CLP01 unit might be faulty, requiring a replacement. Ensure the internal setting switch (SW1) for the MR-J2S-CLP01 unit is closed correctly. Finally, inspect the full closed encoder cable for any failures and correct or replace it as needed.
K
Kelly WilliamsAug 27, 2025
Why does my Mitsubishi Amplifier show a full closed encoder error 2?
- S
  Seth PierceAug 27, 2025
  If you encounter 'Full closed encoder error 2' on your Mitsubishi Amplifier, it could be due to a high linear scale temperature (if using a Mitutoyo linear scale), in which case you should check the linear scale temperature and contact the scale manufacturer. Alternatively, it might be caused by a reduction of the linear scale signal level (if using a Sony Precision Technology linear encoder), so check the mounting state of the linear scale.

Mitsubishi Melservo-J2-SUPER series Specifications

General

Brand	Mitsubishi
Model	Melservo-J2-SUPER series
Category	Amplifier
Language	English

Summary

Safety Instructions

Additional Instructions

Transportation and Installation

Provides essential guidelines for safely transporting and installing the equipment.

COMPLIANCE WITH EC DIRECTIVES

WHAT ARE EC DIRECTIVES?

Explains the purpose and requirements of EC directives for products.

PRECAUTIONS FOR COMPLIANCE

Lists precautions for using servo amplifiers and motors in compliance with directives.

CONFORMANCE WITH UL;C-UL STANDARD

Servo amplifiers and servo motors used

Specifies compatible servo amplifiers and motors for UL/C-UL compliance.

Installation

Provides installation guidelines for UL/C-UL standard compliance.

Short circuit rating

States the short circuit rating conformance for UL/C-UL standards.

Capacitor discharge time

Lists capacitor discharge times for safety precautions under UL/C-UL.

Options and auxiliary equipment

Specifies requirements for auxiliary equipment under UL/C-UL standards.

1. FUNCTIONS AND CONFIGURATION

1.1 Overview

Explains the purpose of the manual and the product's function.

1.2 Control block diagram

Illustrates the system architecture and data flow for full closed control.

1.3 Specification list

Provides technical specifications for the servo amplifiers.

1.4 Model name

Details the naming convention for the servo amplifier series.

1.5 System configuration

Shows system diagrams for connecting scales and encoders.

2. LINEAR SCALES

2.1 Compatible linear scale list

Lists compatible linear scales with their specifications and compatibility.

2.2 A B Z-phase differential input interface unit specifications

Details specifications for the A/B/Z-phase differential input interface unit.

3. SIGNALS AND WIRING

3.1 Standard connection examples of full closed control servo amplifier control signals

Shows wiring diagrams for connecting servo amplifiers with various components.

3.2 Signal terminal explanation

Explains the function of each terminal on the servo amplifier.

3.3 About power-on

Describes the power-on sequence and timing for the servo amplifier.

4. OPERATION AND FUNCTIONS

4.1 Startup

Outlines the procedure for starting up the full closed control system.

4.2 Home position return operation

Explains methods for performing home position return for different encoder types.

4.3 Operation from controller

Details how to operate the servo amplifier with various controllers.

4.4 Functions

Describes functions like error detection, auto tuning, and test operation.

4.5 Absolute position detection system

Explains how to configure an absolute position detection system.

4.6 About the MR Configurator

Describes how to use the MR Configurator software for system setup and monitoring.

5. PARAMETERS

5.1 Parameter list

Lists all available parameters with their initial values and settings.

6. TROUBLESHOOTING

6.1 Alarm list

Lists and explains common alarms and their corrective actions.

6.2 Scale error (AL. 2 A) details classified by linear scale manufacturer

Provides details on scale errors and troubleshooting specific to manufacturers.

7. OPTIONS AND AUXILIARY EQUIPMENT

7.1 CN2 wiring option cable (MR-J2 SCLCBL02 M-P-H)

Details the wiring and connection for the CN2 option cable.

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