접촉기,회로 차단기,감지기,인코더,PLC,변환기
MR-J4: MELSERVO-J4 servo series
W2: 2-axis integrated drive (one unit controls 2 모터)
77: Rated power of each axis: 750여 + 750여
비: SSCNETⅢ/H fiber bus interface for fiber synchronous control, 호환 가능 미쓰비시 모션 CPU
📋 Main Specifications
| 목 | 사양 |
| Number of axes | 2 축 |
| Rated power per axis | 0.75kW (750여) |
| 전원공급장치 | 3-단계 / single-phase AC200～240V, 50/60헤르츠 (marked on label: 3PH+1PH 200-240V) |
| Communication bus | SSCNETⅢ/H (high-speed fiber synchronization) |
| 안전 기능 | Built-in STO Safe Torque Off (IEC를 준수 61800-5-2) |
| Dynamic brake | 내장 |
| 치수 | W85 × H168 × D195 mm |
| 무게 | 2 kg |
| Encoder support | 22-비트 절대 인코더 (4,194,304 p/r) |
| 인증 | CE, UL/cUL, UKCA, RoHS 규제 |
| HS코드 | 85044095 |
🛠️ Compatible Motors
Compatible with Mitsubishi HG-MR73 / HG-KR73 (750W J4-series servo motors), supporting absolute encoders.
🎯 일반적인 응용 분야
다축 동기 장비: chip mounters, inspection platforms, 전송 모듈, CNC auxiliary machines, 포장 기계, 반도체 장비.
이점: Two axes share one drive, saving cabinet space and reducing cost.
🔄 Replacement Options
- Upgrade to new generation (J5)：MR-J5W2-77B (same 2-axis rating, SSCNETⅢ/H compatible, 향상된 성능)
- Separate drive solution：2 pcs MR-J4-70B (single-axis 750W, larger footprint)
- 레거시 교체：Predecessor MR-J3W-77B. Wiring and program differences, not plug-and-play
This is a bus-type 서보 드라이브; pulse command control is not supported directly. It must be used with Mitsubishi motion controllers (Q/R series motion CPU) via SSCNET fiber link.
USB port for commissioning; configured with MR Configurator2 software.
예비 부품: Power board, CPU board, CNP connector with individual part numbers (303772, 303769, 등.)
MR-J4W2 (MR-J4W2-77B) 경보 / 오류 코드 목록
설명: MR-J4W2 2-axis integrated type B (SSCNETⅢ/H). Alarms are divided into fault alarms (latched, reset required) and warnings (종료 없음, prompt only).
접미사 .1/.2 stands for Axis 1 / 중심선 2, which is critical for this 2-axis model.
Readout: Drive panel or MR Configurator2 software; alarm history can be saved with waveform data for troubleshooting.
- Fault Alarms (ALM, machine shutdown)
Alarm Code 이름 Brief Cause & 문제 해결 10 저전압 Insufficient DC bus voltage; missing phase, voltage drop, 접촉기 접촉불량, damaged rectifier module 12 Memory error Internal ROM / flash failure; replace drive if fault persists after power cycle 13 Clock error Internal RTC failure; drive replacement is generally required 15 Power circuit error Pre-charge / soft-start circuit failure on main power side 16 접지 결함 Short to earth of motor power cable, motor winding insulation breakdown 19 Main circuit error IPM or power driver hardware damage 1에이 Motor combination error Mismatched motor model in PA01/PA02; wrong encoder cable or motor selection (.1 Axis1, .2 Axis2) 20 Encoder initial communication error Handshake failure at power-up; broken encoder cable, loose connector, faulty encoder 24 Encoder communication error Communication dropout during operation; EMI 간섭, poor shield on long cable, 커넥터에 물 유입 25 Encoder Z-phase error Abnormal encoder zero signal 2비 Encoder counting error Count disorder caused by interference or encoder hardware failure (.1 Axis1, .2 Axis2) 30 Regeneration error Broken regenerative resistor, wrong resistance value, excessive regenerative power; built-in regeneration insufficient, external resistor required 31 과속 Motor speed exceeds limit; abnormal command, encoder feedback fault, runaway due to excessive gain 32 과전류 하드웨어 / software overcurrent; phase-to-phase short circuit in motor, shorted power wire, IPM breakdown, 기계적 걸림 33 과전압 DC bus over-limit; excessive energy feedback during deceleration, high input voltage, failed regeneration circuit 34 SSCNET receive error 1 SSCNETⅢ/H fiber communication fault: bent fiber, contaminated end face, loose connector, faulty fiber port on motion CPU 35 Command frequency error Illegal command sent from upper motion controller 36 SSCNET receive error 2 Fiber synchronization timing error, multi-axis link synchronization fault 37 매개변수 오류 Parameter out of range or checksum error; restore factory settings and re-download parameters 3에이 Surge suppression circuit error Soft-start circuit failure at power-on 3이자형 Operation mode error Mismatch between control mode parameter and SSCNET configuration on master side 42 Full-closed control error External linear scale feedback fault (only for full-closed loop mode) 45 Main device overheat Power module overheat; 막힌 냉각 공기 덕트, 팬 스톨, 높은 주변 온도 46 모터 과열 Motor thermal sensor triggered; continuous overload, poor motor heat dissipation (.1 Axis1, .2 Axis2) 47 Cooling fan fault Drive internal fan stall / low speed; 이물질 걸림, fan aging 50 초과 적재 1 지속적인 과부하 (electronic thermal protection); mechanical binding, high friction, undersized selection 51 초과 적재 2 Peak overload; 충격하중, sudden mechanical lock 52 Position excessive error Position deviation exceeds threshold; lost pulses, 기계적 걸림, 낮은 이득, excessive command speed (.1 Axis1, .2 Axis2) 54 Vibration detection Servo oscillation; 과도한 이득, 기계적 공명 56 Forced stop alarm STO safety circuit open, emergency stop triggered, disconnected STO wiring 61 Operation error Illegal command while servo ON, sequence control error 63 STO timing error Timing mismatch between two STO channels, asymmetric safety wiring 64 Safety setting error Incorrect STO safety parameter configuration 경고 (WARN, servo keeps running, alert only)
| Warning Code | 이름 | 설명 |
| 91 | Drive overheat pre-warning | Temperature approaching protection threshold |
| 92 | Battery cable break | Absolute encoder battery wire disconnected; dead battery, loose plug |
| 95 | STO warning | Single STO channel abnormal (single wire open, shutdown alarm not triggered yet) |
| 96 | Home setting warning | Faulty home signal logic or home proximity signal |
| 9비 | Position deviation pre-warning | Position error close to alarm threshold |
| 9에프 | Battery low warning | Encoder battery voltage low; replace battery soon to avoid home position loss |
| E0 | Regeneration overload warning | Sustained high regenerative load |
| E1 | Overload warning 1 | Load approaching overload threshold |
| E2 | Motor overheat warning | Motor temperature rising |
| E3 | Absolute counter warning | Abnormality of absolute position counter |
| E4 | Parameter warning | Unreasonable parameter setting (no latch-up) |
| E6 | Drive-side forced stop warning | STO / E-stop triggered at drive side |
| E7 | Controller forced stop warning | Stop command issued by upper motion CPU |
| E8 | Fan speed drop warning | Fan aging with reduced speed, not stalled |
| E9 | Main circuit OFF warning | Main power cut off while control power remains energized |
| EB | Other axis alarm (2-axis specific) | The other axis on this drive has an active fault |
| EC | Overload warning 2 | High peak load detected |
| 에드 | Output power limit warning | Continuous output power close to rated limit |
| F0 | Tough drive instantaneous power dip warning | Tough drive function activated by voltage fluctuation |
| F2 | Drive log write error | Internal fault recorder access failure |
| F3 | Vibration diagnostic warning | High mechanical vibration detected by diagnostic function |
Special Notes for MR-J4W2 2-Axis Drive
- 접미사 .1 = CH1 (중심선 1)；.2 = CH2 (중심선 2). Confirm faulty axis first; motor and encoder of the two axes are independent.
- EB warning is unique to this multi-axis model: When one axis faults, the other axis reports EB to indicate the companion axis failure. Do not troubleshoot EB directly; check the real alarm code on the other channel.
- 34 / 36 fiber alarms: For SSCNETⅢ/H fiber, clean end face first, minimum bend radius ≥30mm, avoid sharp bends.
- STO (56, 63, 95): Two STO channels must switch synchronously; inconsistent timing triggers code 63.
- Alarm reset: Remove root cause first, turn servo SON OFF then reset. Some hardware faults cannot be cleared by power cycling.
Mitsubishi MELSERVO Servo Drive Model List
General suffix definition
에이: 맥박 + 아날로그 인터페이스 (pulse command type)
비: SSCNETⅢ/H fiber bus (fiber synchronization with motion CPU, MR-J4W2-77B belongs to this type)
GF / G: CC-링크 IE / CC-Link IE TSN Ethernet bus
W2: 2-축 통합; W3: 3-축 통합
D1/D2/D3: Separate power type (amplifier unit paired with MR-CV power supply)
Numeric code for power rating (10=0.1kW, 20=0.2kW, 40=0.4kW, 60=0.6kW, 70=0.75kW, 100=1kW, 200=2kW, 350=3.5kW, 500=5kW, 700=7kW)
RJ: Special specification version
Active Series (Available for new orders)
- MR-J5 시리즈 (Latest generation, MELSERVO-J5, 3.5kHz 응답)
단축
MR-J5-10A / 20에이 / 40에이 / 60에이 / 70에이 / 100에이 / 200에이 / 350에이 / 500에이 / 700A 【Pulse type】
MR-J5-10G / 20G / 40G / 70G / 100G / 200G / 350G / 500G / 700G 【CC-Link IE TSN】
MR-J5-10B / 20비 / 40비 / 70비 / 100비 / 200비 / 350B 【SSCNETⅢ/H fiber】
Multi-axis integrated
MR-J5W2-22B / 44비 / 77비 / 1010비 / 2020비 (2-중심선, SSCNET fiber)
MR-J5W3-222B / 444비 / 777비 (3-중심선, SSCNET fiber)
MR-J5W2-22G / 44G / 77G / 1010G (2-중심선, CC-링크 IE TSN)
MR-J5W3-222G / 444G / 777G (3-중심선, CC-링크 IE TSN)
Separate power type (Common DC bus regeneration system)
MR-J5D1-G4-N1 (1-중심선), MR-J5D2-G4-N1 (2-중심선), MR-J5D3-G4-N1 (3-중심선)
Matching power unit: MR-CV4 regenerative converter
- MR-J4 시리즈 (Mature mainstream, your model belongs here)
단축
MR-J4-10A / 20에이 / 40에이 / 60에이 / 70에이 / 100에이 / 200에이 / 350에이 / 500에이 / 700에이 / 11그만큼 / 15그만큼 / 22그만큼
MR-J4-10B / 20비 / 40비 / 60비 / 70비 / 100비 / 200비 / 350비 / 500비 / 700비 (SSCNETⅢ/H)
MR-J4-10GF / 20GF / 40GF / 70GF / 100GF (CC-Link IE 필드)
Multi-axis integrated (Focus: MR-J4W2 / J4W3)
MR-J4W2-22B (0.2+0.2kW)
MR-J4W2-44B (0.4+0.4kW)
MR-J4W2-77B (0.75+0.75kW, 당신의 모델)
MR-J4W2-1010B (1+1kW)
MR-J4W2-2020B (2+2kW)
MR-J4W3-222B / 444비 / 777비 (3-축 통합)
MR-J4W2-0303B6 (Low-power special version)
Separate amplifier unit
MR-J4-DU900B / DU11KB / DU15KB / DU22KB, used with MR-CV regenerative power supply
- MR-JE Economy Series (Low-cost, 맥박 / simple bus, low power range)
MR-JE-10A / 20에이 / 40에이 / 70에이 / 100에이 / 200에이
MR-JE-10C / 20기음 / 40기음 / 70기음 (EtherCAT version, JE-C)
애플리케이션: Simple feeding and transfer; SSCNET fiber multi-axis synchronization is not supported
- MR-JN Micro Economy Series (Ultra compact, 10~100W)
MR-JN-10A / 20에이 / 40에이 / 60에이 / 100에이
애플리케이션: Small rotary tables, miniature slides, entry-level low-power
⏸️ Obsolete Series (Spare parts market only, not recommended for new machines)
MR-J3 (Production discontinued, stock spares reducing)
단축: MR-J3-10A /20A/40A/70A/100A/200A/350A / MR-J3-10B/20B/40B/70B
다축: MR-J3W-22B / MR-J3W-44B / MR-J3W-77B (J3 2-axis, predecessor of J4W2)
CC-Link version: MR-J3-10T / 20T /40T
MR-J2S (유산, manufacturer repair service terminated)
MR-J2S-10A/20A/40A/70A/100A/200A/350A, MR-J2S-10B, MR-J2S-CP (built-in positioning type)
MR-J2 (Erly first generation, nearly phased out)
MR-J2-10A、MR-J2-20A, 등.
📌 Auxiliary Units (Common servo system accessories)
MR-CV: Regenerative power converter (common DC bus system for J4/J5D)
MR-RB: External regenerative braking resistor
MR-TB: Terminal block adapter
📎 Quick Selection Reference for MR-J4W2-77B
동일 시리즈 교체: MR-J4W2-77B
Upgrade to new generation: MR-J5W2-77B (SSCNET compatible, preferred direct upgrade)
Separate drive alternative: 2 pcs MR-J4-70B
경제적인 대안: JE series does not support SSCNET fiber, cannot replace directly
