Delta ASD-B3-1521-L Servo Drive | 1.5kW High-Performance Motion Control
The Delta ASD-B3-1521-L is a 1.5kW servo drive from the ASDA-B3 series, designed for high-precision motion control applications. Featuring 24-bit encoder support, 3.1 kHz speed response bandwidth, and built-in Safe Torque Off (STO) functionality, this drive delivers exceptional performance, rapid commissioning, and enhanced safety for demanding industrial automation environments.
Key Specifications
| Parameter | Specification |
| Model | ASD-B3-1521-L |
| Rated Output Power | 1.5 kW |
| Supply Voltage | 200-240V AC (±10%) |
| Input Phase | 1-Phase or 3-Phase |
| Input Current (1-Phase) | 11.7 Arms |
| Input Current (3-Phase) | 6.33 Arms |
| Continuous Output Current | 8.3 Arms |
| Instantaneous Max Output Current | 24.3 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 |
| Safe Torque Off (STO) | IEC/EN 61800-5-2, SIL2 compliant |
| Regenerative Resistor | Built-in |
| Cooling System | Fan cooling |
| Protection Rating | IP20 |
| Operating Temperature | 0°C to +55°C |
| Dimensions (H x W x D) | 240 mm x 150 mm x 190 mm |
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, enabling faster cycle times and increased productivity.
- 24-bit High-Resolution Encoder Support: Supports 24-bit absolute and incremental encoders (16,777,216 pulses/revolution) for exceptional positioning precision and ultra-smooth low-speed operation.
- Built-in Safe Torque Off (STO): Integrated STO function compliant with IEC/EN 61800-5-2 SIL2 standards ensures personnel safety during maintenance and emergency situations without requiring external safety components.
- Advanced Auto-Tuning: Built-in auto-tuning automatically calibrates drive parameters to match load inertia and mechanical characteristics, significantly reducing commissioning time and optimizing dynamic response.
- Vibration Suppression: Advanced system modeling and vibration suppression functions minimize mechanical resonance, ensuring stable operation across various load conditions.
- Versatile Communication Options: Supports MODBUS RS-485, CANopen, and EtherNet/IP for seamless integration into diverse automation architectures.
- Energy Regeneration: Built-in regenerative energy utilization improves overall system efficiency and reduces operational costs by recovering and reusing braking energy.
- Built-in PID Control: On-board PID controller enables precise closed-loop control without requiring external controllers, simplifying system architecture and reducing component costs.
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 |
| STO | Safe Torque Off for personnel safety |
Applications
- CNC Machine Tools
- Packaging Machinery
- Industrial Robotics
- Pick-and-Place Equipment
- Printing & Textile Machinery
- Semiconductor Manufacturing Equipment
- Automated Guided Vehicles (AGVs)
Matching Motors
| Motor Model | Power | Brake |
| ECM-B3M-E21315SS1 | 1.5 kW | No |
| ECM-B3M-E21315RS1 | 1.5 kW | Yes |
Required Cables
| Cable Type | Recommended Model |
| Motor Power Cable | ACS3-CAPW3203 |
| Encoder Cable | ACS3-CAEN2703 |
Model Comparison: L vs M Series
| Feature | ASD-B3-1521-L | ASD-B3-1521-M |
| Rated Power | 1.5 kW | 3.0 kW |
| Input Phase | 1-Phase or 3-Phase | 3-Phase Only |
| Continuous Current | 8.3 Arms | 15.2 Arms |
| STO | Built-in | Not available |
| Dimensions | 240 x 150 x 190 mm | 240 x 150 x 190 mm |
Why Choose ASD-B3-1521-L?
- 1.5kW power rating ideal for medium-duty applications
- Flexible input supports both single-phase and three-phase power
- Built-in STO enhances safety without external components
- High bandwidth delivers faster response and higher throughput
- 24-bit encoder support ensures precision positioning
- Easy integration with Delta motors, cables, and automation ecosystem