Delta ASD-B3-0421-M Servo Drive | 400W Compact High-Performance Drive
The Delta ASD-B3-0421-M is a 400W servo drive from the ASDA-B3 series, designed for compact, high-precision motion control applications. Featuring 24-bit encoder support, 3.1 kHz speed response bandwidth, and advanced auto-tuning capabilities, this drive delivers exceptional dynamic performance, rapid commissioning, and reliable operation for small to medium automation equipment.
Key Specifications
| Parameter | Specification |
| Model | ASD-B3-0421-M |
| Rated Output Power | 400 W (0.4 kW) |
| Supply Voltage | 200-240V AC (±10%) |
| Input Phase | 3-Phase Only |
| Input Current | 3.2 Arms |
| Continuous Output Current | 2.6 Arms |
| Instantaneous Max Output Current | 7.8 Arms (3 sec) |
| Encoder Support | 24-bit absolute/incremental encoder |
| Control Bandwidth | 3.1 kHz |
| Control Modes | Position, Speed, Torque (selectable) |
| Communication Interfaces | MODBUS RS-485, CANopen, EtherNet/IP |
| Regenerative Resistor | Built-in |
| Cooling System | Natural cooling (fanless) |
| Protection Rating | IP20 |
| Operating Temperature | 0°C to +55°C |
| Dimensions (H x W x D) | 170 mm x 50 mm x 165 mm |
| Weight | Approx. 1.3 kg |
Key Features
- High Response Bandwidth: Achieves 3.1 kHz speed response bandwidth with settling time reduced by up to 40% compared to previous ASDA-B2 series
- 24-bit High-Resolution Encoder Support: Supports 24-bit absolute and incremental encoders for exceptional positioning precision
- Advanced Auto-Tuning: Automatically calibrates drive parameters to match load inertia and mechanical characteristics
- Vibration Suppression: Advanced functions minimize mechanical resonance for stable operation
- Versatile Communication Options: Supports MODBUS RS-485, CANopen, and EtherNet/IP for seamless integration
- Energy Regeneration: Built-in regenerative energy utilization improves system efficiency
- Compact Fanless Design: Natural cooling eliminates fan noise and reduces maintenance
- Built-in PID Control: On-board PID controller enables precise closed-loop control
Protection Features
| Protection Type | Description |
| Overcurrent | Shuts down when output current exceeds rated limits |
| Overvoltage | Protects against excessive DC bus voltage |
| Undervoltage | Prevents operation during insufficient voltage conditions |
| Overtemperature | Monitors internal temperature; triggers fault if exceeding limits |
| Overload | Protects motor from extended overload conditions |
| Encoder Error | Detects encoder communication or signal failures |
Applications
- Small CNC Machines (engraving machines, desktop mills)
- Pick-and-Place Equipment (high-speed component placement)
- PCB Assembly Machines (surface mount technology)
- Medical Devices (precision positioning equipment)
- Laboratory Automation (sample handling, liquid handling)
- Packaging Machinery (labeling, capping, indexing)
- Small Robotics (SCARA robots, collaborative robots)
- Electronic Manufacturing (dispensing, inspection systems)
Matching Motors
| Motor Model | Power | Inertia | Brake |
| ECM-B3M-C20604SS1 | 400W | Low | No |
| ECM-B3M-C20604RS1 | 400W | Low | Yes |
| ECM-B3M-C20602SS1 | 200W | Low | No |
| ECM-B3M-C20602RS1 | 200W | Low | Yes |
Required Cables
| Cable Type | Recommended Model |
| Motor Power Cable | ACS3-CAPW0206 |
| Encoder Cable | ACS3-CAEN2006 |
Model Comparison: M vs L Series (400W)
| Feature | ASD-B3-0421-M | ASD-B3-0421-L |
| Input Phase | 3-Phase Only | 1-Phase or 3-Phase |
| Input Current | 3.2 Arms (3-phase) | 6.9 Arms (1-phase) / 3.2 Arms (3-phase) |
| STO | Not available | Built-in |
| Cooling | Fanless (natural) | Fan cooling |
| Dimensions | 170 x 50 x 165 mm | 170 x 60 x 165 mm |
Why Choose ASD-B3-0421-M?
- Compact 400W power ideal for small to medium automation equipment
- 3.1 kHz bandwidth delivers fast response and high throughput
- Fanless design for quiet operation and reduced maintenance
- 24-bit encoder support ensures precision positioning
- Multiple communication options for flexible integration
- Cost-effective solution for high-performance applications
- Seamless integration with Delta motors, cables, and automation ecosystem