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Delta ECMA-E21320RS is a 2kW medium-inertia AC servo motor of the ASDA-B2 series. It is compatible with 220V-class ASDA-B2 series servo drives, equipped with a 17-bit incremental encoder, featuring high-precision positioning and stable torque output. It is widely used in automated production lines, machines d'emballage, electronic manufacturing equipment, et d'autres domaines.
- Core Specifications Overview
| Article | Details |
| Modèle | ECMA-E21320RS (Medium-inertia type, ASDA-B2 series) |
| Puissance nominale | 2kW (2000W) |
| Tension nominale | 200–230V AC (3-phase) |
| Rated Speed | 2000 r/min |
| Max Speed | 3000 r/min |
| Rated Torque | 9.55 N·m |
| Max Torque | 28.65 N·m (3× rated torque) |
| Inertia Class | Medium inertia (J=0.012 kg·m²) |
| Encoder Type | 17-bit incremental encoder (131072 ppr) |
| Shaft Configuration | With keyway + center threaded hole, oil seal, no brake |
| Mounting Flange | Standard 130mm flange |
| Classe d'isolation | Class B |
| Classe de protection | IP65 (shaft end), IP20 (corps) |
| Cooling Method | Self-cooled |
| Poids | Environ. 12.5 kilos |
| Certifications | UL, CE, CAE |
- Model Code Explanation (ECMA-E21320RS)
| Code Segment | Description |
| ECMA | Prefix for Delta servo motor series |
| E | Voltage class: E = 200V class (for ASDA-B2 series) |
| 2 | Code de série: 2 = ASDA-B2 series |
| 13 | Flange size: 13 = 130mm flange |
| 20 | Rated power ×10: 20 = 2.0kW |
| R. | Shaft configuration: R = with keyway + center threaded hole |
| S | Special configuration: S = with oil seal (no brake) |
- Key Product Features
- High-precision positioning control: 17-bit encoder with 131072 ppr resolution achieves sub-millimeter positioning accuracy and stable low-speed operation.
- Strong anti-interference capability: Separate power supply design for main and control circuits improves system stability.
- Flexible adaptability: Supports position / vitesse / torque control modes, controllable via pulse command (up to 4Mbps) or analog voltage.
- Durable design: IP65 shaft protection+oil seal for dusty and humid industrial environments; Class B insulation withstands 130°C.
- Safety and reliability: Built-in overcurrent, surtension, surchauffe, and overload protection, with full closed-loop monitoring via the drive.
- Model Comparison in the Same Power Range (ASDA-B2)
| Modèle | Power | Speed | Torque | Shaft Difference | Application |
| ECMA-E21320RS | 2kW | 2000rpm | 9.55Nμm | Oil seal, no brake | General transmission, convoyeurs |
| ECMA-E21320SS | 2kW | 2000rpm | 9.55Nμm | Oil seal, with brake | Vertical loads, lifting mechanisms |
| ECMA-E21320FS | 2kW | 2000rpm | 9.55Nμm | No oil seal, with brake | Dry environments, horizontal drive |
| ECMA-E21320RS-001 | 2kW | 2000rpm | 9.55Nμm | Custom version | Special customer requirements |
- ASDA-B2 Series Model Overview (130mm Flange)
| Power | Sample Model | Rated Speed | Rated Torque |
| 1.0kW | ECMA-E21310RS | 3000rpm | 3.18N·m |
| 1.5kW | ECMA-E21315RS | 2500rpm | 5.73N·m |
| 2.0kW | ECMA-E21320RS | 2000rpm | 9.55N·m |
| 3.0kW | ECMA-E21330RS | 1500rpm | 19.11N·m |
- Recommended Alternatives (International & Domestic Brands)
6.1 Upgraded Delta Alternatives
| Original | Upgraded Model | Série | Upgrade Highlights |
| ECMA-E21320RS | ECM-B3M-E21320RS1 | ASDA-B3 | 23-bit encoder, EtherCAT support, 30% faster response |
| ECMA-E21320RS | ECM-E3M-E21320RSE | ASDA-E3 | Simplified wiring, improved UI, better cost-performance |
6.2 International Brand Alternatives
| Original | Schneider Alternative | Siemens Alternative | Mitsubishi Alternative |
| ECMA-E21320RS | LXM32AD18M2 + BSH1003P12A2A | V90-2kW + 1FL6064-1AC61-0AA1 | MR-JE-200A + HF-SP202 |
| Key Match | 2kW, 2000rpm, 17-bit encoder, medium inertia | 2kW, 2000rpm, 20-bit encoder, PROFINET | 2kW, 2000rpm, 17-bit encoder, CC-Link |
6.3 Domestic Brand Alternatives
| Original | Inovance Alternative | Estun Alternative | Invt Alternative |
| ECMA-E21320RS | IS620PT200I + MS1H2-20B30CB | EDB-20APA + EMJ-130B20R22 | DA200-2R7-2 + SV-ML130-20-20 |
| Advantage | ~2/3 price of imports, EtherCAT support | Full closed-loop, harsh environment rated | Rentable, local support |
- Key Matching Parameters for Selection & Remplacement
| Catégorie | Matching Requirements | Priority |
| Power/Torque | Rated power ≥ load demand; max torque ≥ 3× peak load | ★★★★★ |
| Inertia Matching | Load inertia ≤ 5× motor inertia (medium-inertia applications) | ★★★★☆ |
| Encoder Type | Incremental/absolute compatible with drive; resolution meets positioning | ★★★★☆ |
| Shaft Config | Keyway/thread/oil seal/brake matches mechanical system | ★★★☆☆ |
| Flange Size | Identical mounting dimensions to avoid modification | ★★★★☆ |
| Communication | Supports original control system protocol after replacement | ★★★☆☆ |
- Applications typiques
- Automated production lines: Precision positioning, synchronous conveying, multi-axis synchronization
- Machines d'emballage: High-speed, high-precision control for bag making, sealing, étiquetage
- Electronic manufacturing: PCB drilling machines, pick-and-place machines, semiconductor packaging
- Machine tools: Feed axis drive for small machining centers, CNC lathes
- Printing machinery: Tension control, register accuracy adjustment
- Machines textiles: Let-off and take-up control for uniform fabric tension
- Operating Notes
- Must be used with a 220V ASDA-B2 series drive (par ex., ASD-B2-2023-B); do not connect directly to mains.
- Use original Delta shielded cables for motor power and encoder lines to reduce EMI.
- Keep flange surfaces clean and flat; tighten bolts evenly to avoid vibration-induced accuracy loss.
- Température ambiante: –10°C ~ +40°C, humidity ≤90% (non-condensing).
- Regularly check motor temperature, noise, and vibration; stop for inspection if abnormal.
Delta ECMA Series Servo Motor Product Codes & Ordering Guide
The Delta ECMA series is a standard AC servo motor for ASDA-A2/B2 drives, later upgraded to the ECM series (for ASDA-B3/E3/A3 drives). Below is the complete product coding rule, full model list, and ordering specification for selection, procurement, and inventory management.
- ECMA Model Coding Rules (Core Explanation)
1.1 Full Model Format
1.2 Detailed Code Definitions
| Code Segment | Position | Options | Description |
| ECMA | Prefix | Fixé | Delta standard AC servo motor (ECM = electronically commutated motor, A = AC) |
| Series Code | 1st | C1/C2 | C1 = ASDA-A2; C2 = ASDA-B2 |
| Voltage/Speed | 2nd | C/E/F/G | C=220V, 3000rpm |
| E=220V, 2000rpm | |||
| F=220V, 1500rpm | |||
| G=400V series | |||
| Flange Size | 3rd–4th | 06/08/10/13/18 | 06=60mm; 08=80mm; 10=100mm; 13=130mm; 18=180mm |
| Power Code | 5th–6th | 02/04/07/10/15/20/30 | Power ×10 (07=0.75kW, 20=2.0kW) |
| Shaft Code | 7th | R/S/P/6/C | R=keyway+thread |
| S=keyway+thread+brake | |||
| P=smooth shaft | |||
| 6=16mm shaft | |||
| C=3m extended cable | |||
| Special Config | 8th | S/blank | S=with oil seal (standard); blank=no oil seal |
1.3 Quick Reference (Commonly Used)
| Voltage/Speed | Code | Flange | Code | Power | Code | Shaft | Code |
| 220V/3000rpm | C | 60mm | 6 | 0.2kW | 2 | Key+thread | R. |
| 220V/2000rpm | E | 80mm | 8 | 0.4kW | 4 | Key+thread+brake | S |
| 220V/1500rpm | F | 100mm | 10 | 0.75kW | 7 | Smooth shaft | P. |
| 400V series | G | 130mm | 13 | 1.0kW | 10 | 16mm shaft | 6 |
| 180mm | 18 | 1.5kW | 15 | 3m cable | C | ||
| 2.0kW | 20 | ||||||
| 3.0kW | 30 |
- Complete ECMA Series Model List (By Flange Size)
2.1 60mm Flange (06) – Low Inertia, 0.2kW/0.4kW
| Power | Speed | A2 Series | B2 Series | Rated Torque | Inertia |
| 0.2kW | 3000rpm | ECMA-C10602RS/SS | ECMA-C20602RS/SS | 0.637Nμm | Faible |
| 0.4kW | 3000rpm | ECMA-C10604RS/SS | ECMA-C20604RS/SS | 1.273Nμm | Faible |
2.2 80mm Flange (08) – Low/Medium Inertia, 0.75kW
| Power | Speed | A2 Series | B2 Series | Rated Torque | Inertia |
| 0.75kW | 3000rpm | ECMA-C10807RS/SS | ECMA-C20807RS/SS | 2.387Nμm | Faible |
| 0.75kW | 2000rpm | ECMA-E10807RS/SS | ECMA-E20807RS/SS | 3.580Nμm | Moyen |
2.3 100mm Flange (10) – Medium Inertia, 1.0kW
| Power | Speed | A2 Series | B2 Series | Rated Torque | Inertia |
| 1.0kW | 3000rpm | ECMA-C11010RS/SS | ECMA-C21010RS/SS | 3.183Nμm | Moyen |
| 1.0kW | 2000rpm | ECMA-E11010RS/SS | ECMA-E21010RS/SS | 4.775Nμm | Moyen |
2.4 130mm Flange (13) – Medium Inertia, 1.0kW/1.5kW/2.0kW/3.0kW
| Power | Speed | A2 Series | B2 Series | Rated Torque | Inertia |
| 1.0kW | 3000rpm | ECMA-C11310RS/SS | ECMA-C21310RS/SS | 3.183N·m | Moyen |
| 1.5kW | 2500rpm | – | ECMA-E21315RS/SS | 5.730N·m | Moyen |
| 2.0kW | 2000rpm | – | ECMA-E21320RS/SS | 9.550N·m | Moyen |
| 3.0kW | 1500rpm | – | ECMA-F21330RS/SS | 19.110N·m | Moyen |
2.5 180mm Flange (18) – High Inertia, 4.5kW/5.5kW
| Power | Speed | A2 Series | B2 Series | Rated Torque | Inertia |
| 4.5kW | 1500rpm | ECMA-F11845RS/SS | ECMA-F21845RS/SS | 28.648Nμm | Haut |
| 5.5kW | 1500rpm | ECMA-F11855RS/SS | ECMA-F21855RS/SS | 35.017Nμm | Haut |
2.6 Special Shaft Configurations
| Base Model | Derived Model | Special Description |
| ECMA-C20604RS | ECMA-C20604R6 | 16mm shaft, no center thread |
| ECMA-C20807RS | ECMA-C20807RC | 3m extended cable, oil seal |
| ECMA-E21320RS | ECMA-E21320RC | 3m extended cable, oil seal |
| ECMA-C20602RS | ECMA-C20602RH | Keyway, no center thread |
- ECMA Series Ordering Specifications
3.1 Standard Order Format
ECMA[Modèle complet][Optional Suffix]
Standard: No suffix = standard (17-bit incremental encoder, keyway+thread+oil seal)
Special suffixes:
SS = brake version (par ex., ECMA-C20604SS)
RC = 3m extended cable (par ex., ECMA-C20807RC)
R6 = 16mm shaft (par ex., ECMA-C20604R6)
RH = keyway, no center thread
3.2 Matching Drive Models
| Motor Power | B2 Drive | A2 Drive |
| 0.2kW | ASD-B2-0221-B | ASD-A2-0221-M |
| 0.4kW | ASD-B2-0421-B | ASD-A2-0421-L |
| 0.75kW | ASD-B2-0721-B | ASD-A2-0721-L |
| 1.0kW | ASD-B2-1021-B | ASD-A2-1021-L |
| 2.0kW | ASD-B2-2023-B | ASD-A2-2023-L |
- Upgraded ECM Series (For B3/E3/A3)
ECMA series has been upgraded to the ECM series for high-speed ASDA-B3/E3/A3 systems. New order format:
| Original ECMA | B3 Replacement | E3 Replacement | Upgrade Highlights |
| ECMA-C20604RS | ECM-B3M-CA0604RS1 | ECM-E3M-CA0604RSE | 23-bit encoder, EtherCAT, 3.1kHz response |
| ECMA-E21320RS | ECM-B3M-EA1320RS1 | ECM-E3M-EA1320RSE | Simplified wiring, better usability, cost-optimized |
- Key Selection & Procurement Tips
- Model matching: Ensure drive series (A2/B2) matches motor series (C1/C2) to avoid incompatibility.
- Shaft selection:
RS = standard (key+thread+oil seal, no brake)
SS = with brake (required for vertical axes)
RC = 3m extended cable
- Encoder: Default 17-bit incremental; absolute type requires custom order.
- Certifications: Full series UL, CE, EAC certified for global markets.
- Full Series Quick List (By Power)
| Power | Speed | Flange | Modèle typique | Application |
| 0.2kW | 3000rpm | 60mm | ECMA-C20602RS | Small positioning stages, precision instruments |
| 0.4kW | 3000rpm | 60mm | ECMA-C20604RS | Electronics, small conveyors |
| 0.75kW | 3000rpm | 80mm | ECMA-C20807RS | Conditionnement, labeling machines |
| 1.0kW | 3000rpm | 100mm | ECMA-C21010RS | Automated assembly lines |
| 2.0kW | 2000rpm | 130mm | ECMA-E21320RS | Printing machinery, CNC machines |
| 4.5kW | 1500rpm | 180mm | ECMA-F21845RS | Heavy-duty production lines, large equipment |
