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Yaskawa SGMJV-02ADL21 is a medium-inertia small-capacity AC servo motor with a rated power of 200W (0.2kW). It is suitable for industrial automation equipment requiring medium-precision positioning and medium-inertia load driving.
- Detailed Model Code Interpretation
| Model Segment | Code | Description |
| Series | SGMJV | Σ‑V Series medium‑inertia small‑capacity servo motor (50W~750W) |
| Rated Output | 2 | 200W (0.2kW), rated torque 0.637N·m |
| Voltage | A | 3‑phase AC200V (170~230V) |
| Encoder Type | D | 20‑bit incremental serial encoder (1,048,576 pulses/rev) |
| Design Version | L | Standard design |
| Shaft End | 2 | Straight shaft, keyway, threaded hole |
| Option | 1 | No DC24V holding brake |
- Core Technical Specifications
2.1 Electrical Specifications
| Item | Value | Notes |
| Rated Power | 200W (0.2kW) | Continuous operation |
| Rated Torque | 0.637N·m | At 3000 r/min |
| Maximum Instantaneous Torque | 2.23N·m | 350% of rated torque (short‑time only) |
| Rated Speed | 3000 r/min | Continuous max speed |
| Maximum Speed | 6000 r/min | Short‑time operation |
| Rated Current | 1.5A | RMS at 200V |
| Peak Current | 4.2A | Corresponding to max torque |
| Rotor Inertia | 0.25×10⁻⁴ kg·m² | Medium inertia |
| Insulation Class | Class B | Max permissible temperature 130°C |
| Dielectric Withstand Voltage | AC1500V / 1 min | Between winding and frame |
| Insulation Resistance | ≥10MΩ at DC500V | Cold condition |
2.2 Encoder Specifications
| Item | Value | Description |
| Type | 20‑bit incremental | High‑resolution position detection |
| Resolution | 1,048,576 pulses/rev | High‑precision positioning |
| Communication | Serial communication | Dedicated interface for Σ‑V drives |
| Output Signal | A/B/Z phase pulses | Position and speed feedback |
2.3 Mechanical & Environmental Specifications
| Item | Value | Description |
| Protection | IP55 (except shaft penetration) | Totally enclosed, selfooled |
| Cooling | Totally enclosed selfooled | No forced air required |
| Shaft Diameter | 6mm | Straight shaft with keyway |
| Flange Size | 250mm*250mm, 6 mounting holes | Standard industrial mounting |
| Weight | Approx. 3.5kg | Excluding cables |
| Ambient Temperature | 0~40C | |
| Ambient Humidity | 20~80%RH (nonondensing) | |
| Vibration Level | V15 | IEC compliant |
| Mounting | Flange mount |
- Structural Features & Performance Advantages
3.1 Design Features
Medium inertia: Balances dynamic response and stability for general machinery.
High torque density: Up to 350% peak torque for fast acceleration/deceleration.
High‑resolution encoder: 20‑bit incremental for precision positioning (±1 pulse).
Totally enclosed structure: IP55 rated for harsh industrial environments.
3.2 Performance Advantages
Low‑speed smoothness: No crawling at low speed.
High‑speed response: Short acceleration time.
High reliability: Yaskawa patented insulation and bearing design, long MTBF.
Maintenance‑free: Brushless, self‑cooled structure.
- Matching Drives & System Integration
4.1 Recommended Drives
| Drive Model | Rated Power | Features |
| SGDV-2R8A01B | 200W | Standard type, analog/pulse control |
| SGDV-2R8A11B | 200W | RS-485, Modbus-RTU |
| SGDV-2R8A21B | 200W | EtherCAT bus |
4.2 System Integration Guidelines
Power rating ≥ 200W
Continuous current ≥ 1.5A, peak current ≥ 4.2A
Use dedicated Σ‑V encoder cable
Supports position / speed / torque control
Regenerative resistor recommended for frequent deceleration
- Typical Applications
- Semiconductor manufacturing: Wafer handling, coating, developing machines
- Electronic assembly: PCB drilling, pick-and-place, insertion machines
- Automation lines: Conveying, positioning tables, assembly actuators
- Packaging machinery: Film feeding, cutting, positioning
- Medical equipment: Precision instruments, sample positioning
- Robotics: Small SCARA, collaborative robot joints
- Installation & Maintenance
6.1 Installation Notes
Vertical or horizontal mounting
Coaxiality ≤ 0.05mm
Tighten flange bolts to 8~10N·m
Separate power and encoder cables; use shielded encoder cable
6.2 Maintenance
Inspect bolts and connections after 1000 hours
Keep surface clean for heat dissipation
Sealed long-life bearings: no extra lubrication needed
Store in dry, ventilated area; rotate shaft every 3 months
- Troubleshooting
| Symptom | Possible Causes | Solutions |
| Motor does not run | No power, drive alarm, encoder fault | Check power, wiring, alarm code, encoder |
| Insufficient torque | Low voltage, overload, wrong parameters | Check voltage, reduce load, adjust parameters |
| Excessive vibration | Resonance, inertia mismatch, loose encoder | Adjust gain, add inertia match, retighten |
| Overheating | Overload, poor cooling, high ambient | Reduce load, clean, improve ventilation |
| Poor positioning | Encoder fault, mechanical backlash | Check encoder, eliminate backlash, tune parameters |
- Replacement & Upgrade Suggestions
8.1 Same‑Series Alternatives
With brake: SGMJV-02ADL22
Different shaft: SGMJV-02ADL61
8.2 Upgraded Models
Σ‑7 Series: SGM7J-02AFC6S
Low inertia: SGMAV-02ADA61
The Yaskawa SGMJV-02ADL21 is a widely used 200W medium‑inertia servo motor in industrial automation, featuring high‑resolution feedback, 350% peak torque, and IP55 protection. Selection must consider load inertia, speed, accuracy, and environment to ensure optimal performance and reliability.
Worldwide Brand Alternatives to Yaskawa SGMJV-02ADL21
- Base Reference Parameters
Rated Power: 200W (0.2kW)
Rated Torque: 0.637N·m
Rated Speed: 3000 r/min
Max Speed: 6000 r/min
Rotor Inertia: 0.25×10⁻⁴ kg·m²
Encoder: 20‑bit incremental
Peak Torque: 2.23N·m (350%)
Protection: IP55
Power Supply: 3‑phase AC200V
Brake: None
- Global Brand Cross‑Reference Table
| Brand | Replacement Model | Rated Power | Rated Torque | Rated Speed | Rotor Inertia (×10⁻⁴ kg·m²) | Matching Drive |
| Mitsubishi | HG-KR23BJ | 200W | 0.637N·m | 3000 r/min | 0.24 | MR-J5-20A/RJ |
| Panasonic | MHMF022L1U2 | 200W | 0.637N·m | 3000 r/min | 0.26 | MDDLN45SG |
| Siemens | 1FL6062-1AC61-2LG0 | 200W | 0.637N·m | 3000 r/min | 0.25 | V90-200W |
| Schneider | BMH0702P01A2A | 200W | 0.637N·m | 3000 r/min | 0.27 | LXM32AD18M2 |
| Allen‑Bradley | MPL-B230P-MJ74AA | 200W | 0.637N·m | 3000 r/min | 0.25 | Kinetix 5500 |
| Bosch Rexroth | MSK040C-0200-NN-S2-UP0 | 200W | 0.637N·m | 3000 r/min | 0.24 | IndraDrive Cs |
| Omron | R88M-G20030H-S2-Z | 200W | 0.637N·m | 3000 r/min | 0.26 | R88D-GT02H |
- Detailed Alternative Analysis
3.1 Mitsubishi HG-KR23BJ
Series: MELSERVO‑J5
Encoder: 20‑bit battery‑free absolute
Features: Seamless PLC integration, vibration suppression, multi-mode control
Applications: Semiconductor, electronics, automation lines
3.2 Panasonic MHMF022L1U2
Series: MINAS A6
Encoder: 23‑bit absolute
Features: Ultra-low cogging, 3.2kHz bandwidth
Applications: 3C electronics, small robots, medical devices
3.3 Siemens 1FL6062-1AC61-2LG0
Series: SIMOTICS S‑1FL6
Encoder: 20+12‑bit multi-turn absolute
Features: IP65, PROFINET, easy setup with V90
Applications: Packaging, conveying, woodworking
3.4 Schneider BMH0702P01A2A
Series: Lexium 32 BMH
Encoder: 20‑bit absolute (Hiperface DSL)
Features: 400% peak torque, 1600Hz speed loop
Applications: Material handling, doors, data center equipment
3.5 Allen‑Bradley MPL-B230P-MJ74AA
Series: Kinetix MPL
Encoder: 20‑bit absolute, SIL 2
Features: Studio 5000 integration, EtherNet/IP
Applications: Automotive, printing, textiles
3.6 Bosch Rexroth MSK040C-0200-NN-S2-UP0
Series: IndraDyn S
Encoder: 20‑bit absolute (EnDat 2.2)
Features: Compact, high precision, IP65
Applications: Injection molding, wind power, machine tools
3.7 Omron R88M-G20030H-S2-Z
Series: R88M
Encoder: 20‑bit absolute
Features: Sysmac integration, high response
Applications: Electronics, packaging, assembly
- Key Selection Criteria
- Inertia matching: ±0.02×10⁻⁴ kg·m² of original
- Encoder compatibility: ≥20‑bit resolution
- Torque rating: ≥0.637N·m continuous, ≥2.23N·m peak
- Protection: IP55 or higher
- Bus & software compatibility: EtherCAT, PROFINET, EtherNet/IP
- Recommended Replacement Grades
| Grade | Model | Reason | Application |
| 1st Choice | Mitsubishi HG-KR23BJ | Full parameter match, high market share | Semiconductor, Mitsubishi PLC systems |
| 1st Choice | Panasonic MHMF022L1U2 | Higher encoder resolution, excellent low-speed performance | 3C assembly, precision inspection |
| 2nd Choice | Siemens 1FL6062-1AC61-2LG0 | IP65, PROFINET | Packaging, food processing |
| 2nd Choice | Schneider BMH0702P01A2A | Higher peak torque | Heavy‑duty starting applications |
| Special | Allen‑Bradley / Rexroth | Platform integration, harsh environments | Automotive, machine tools |
- Replacement Implementation Notes
- Mechanical: Match flange, shaft φ6mm, keyway, coaxiality ≤0.05mm
- Electrical: Use matching cables, separate power/feedback lines
- Parameters: Retune gain, position, speed, torque, and home settings
- Testing: No-load → load → 24h endurance test
Many direct global alternatives are available for the Yaskawa SGMJV-02ADL21. Priority should be given to parameter matching, system compatibility, and after-sales support. Mitsubishi and Panasonic provide the closest drop-in replacements. Siemens, Schneider, Allen‑Bradley, and Rexroth are preferred for their respective platforms and environments. Proper mechanical, electrical, and parameter setup ensures consistent performance.
