ASD-B3-0421-L 400W AC Servo Drive 220V 1/3-Phase 2.65A | Delta

The Original New Delta ASD-B3-0421-L is a 400 W AC servo drive from the ASDA-B3 series, Delta's newest generation standard servo system. Rated at 2.65 A continuous output current with a 220 V AC single/three-phase input, it delivers high-precision motion control with a 3.1 kHz response bandwidth and a 24-bit absolute encoder (16,777,216 pulses/revolution). The drive supports position, speed, and torque control modes, with pulse input, analog voltage control, PR mode, and RS-485 communication. Built-in STO (Safe Torque Off) safety function complies with IEC/EN 61800-5-2. Compared to the previous ASDA-B2 series, the B3 series reduces settling time by 40%, increases torque overload to 3.5×, and cuts cogging torque to 50%. The ASD-B3-0421-L is compatible with B3, B2, A3, and A2 series motors, making it a versatile drive for machine tools, electronics manufacturing, packaging, and industrial robotics.

Core Engineering Highlights:
400 W rated output power | 2.65 Arms continuous output current / 10.6 Arms instantaneous max | 220 V AC single/three-phase input | 24-bit absolute encoder (16,777,216 ppr) | 3.1 kHz response bandwidth | 6000 rpm max motor speed | 3.5× torque overload capacity | Built-in STO (SIL2) safety function | 0°C to +55°C operating temperature | IP20 protection

Key Features:

• Original New Delta ASD-B3-0421-L servo drive

• 400 W rated output power with 2.65 A continuous output current

• 10.6 Arms instantaneous maximum output current (3.5× torque overload)

• 220 V AC single-phase or three-phase input (200–230 V AC, -15% to +10%)

• 24-bit absolute encoder eliminates homing at power-up and retains position after power loss

• 3.1 kHz response bandwidth reduces settling time by approximately 40% vs. ASDA-B2

• Supports position, speed, torque, and S-T control modes

• Control modes: PT Mode (pulse input), PR Mode, RS-485, Analog Voltage Control

• Built-in STO (Safe Torque Off) safety function per IEC/EN 61800-5-2

• Supports DC Bus Sharing for multi-axis energy efficiency

• Vibration suppression, auto-tuning, and graphical configuration software

• Compatible with B3, B2, A3, and A2 series motors

• Natural cooling (fanless) for reduced maintenance

• Smaller drive and motor sizes compared to the B2 series

Applications:

• Machine tools and CNC precision machining

• Electronics manufacturing and semiconductor equipment

• Industrial robots and pick-and-place systems

• Printing, packaging, and textile machinery

• Warehousing and material handling systems

• Medical equipment and laboratory automation

• General high-precision motion control applications

Technical Specifications:

System Compatibility:

• Compatible with Delta ASDA-B3 series architecture

• Compatible motors: ECM-B3M-C20604RS1, ECM-B3M-C20604SS1, ECM-B3H-C20604RS1, and other B3 series 400 W motors

• Also compatible with B2, A3, and A2 series motors (verify compatibility before installation)

• Programmed via Delta ASDA-Soft configuration software

• Supports RS-232/RS-485 communication for integration with Delta PLCs, motion controllers, and HMIs

Related Products:

• ECM-B3M-C20604RS1 – 400 W B3 series servo motor (low inertia, 3000 rpm)

• ECM-B3M-C20604SS1 – 400 W B3 series servo motor (low inertia, with brake)

• ASD-B3-0221-L – 200 W version (lower power)

• ASD-B3-0721-L – 750 W version (higher power)

• ASD-B3A-0421-L – 400 W version with STO (SIL3) certification

• ASD-CAPW1103 – Power cable for B3 series (3 m)

• ASD-CAEN1003 – Encoder cable for B3 series (3 m)

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Delta and ASDA are trademarks of Delta Electronics, Inc.