





The Delta ASDA-A3 Servo Drive 750W, specifically the ASD-A3-0721-L, represents a leap forward in servo drive technology, delivering exceptional performance for demanding automation tasks. With its 24-bit high-resolution encoder feedback and advanced SVPWM control, this drive ensures precise position, speed, and torque control across a wide range of applications, from packaging to robotics. Its robust electrical design accommodates both single-phase and three-phase 220 VAC inputs, while the built-in regenerative resistor enhances energy efficiency during deceleration. The ASD-A3-0721-L is engineered for reliability, offering comprehensive protection features and seamless integration with Delta's ASDA-A3 series motors and controllers.
| Specification | Value (ASD-A3-0721-L / 750W) |
|---|---|
| Power Rating | 750 W |
| Phase / Voltage | Single-phase / three-phase 220 VAC |
| Permissible Voltage Range | Single-phase / three-phase 200~230 VAC, -15%~10% |
| Input Current (3PH) (Arms) | 5.01 |
| Input Current (1PH) (Arms) | 8.68 |
| Continuous Output Current (Arms) | 5.1 |
| Instantaneous Max Output Current (Arms) | 21.21 |
| Cooling System | Fan Cooling |
| Drive Resolution | 24-bit (16,777,216 p/rev) |
| Control of Main Circuit | SVPWM Control |
| Tuning Modes | Auto / Manual |
| Regenerative Resistor | Built-in |
| Pulse Type (Non-DMCNET Mode) | Pulse + Direction, A phase + B + CW pulse |
| Max Input Pulse Frequency (Non-DMCNET Mode) | Pulse + Direction: 4 Mpps; CCW pulse + CW pulse: 4 Mpps; A phase + B phase: Single phase 4 Mpps; Max 200 Kpps (Open collector) |
| Command Source | External pulse train (PT mode) / Internal parameters (PR mode) |
| Smoothing Strategy | Low-pass and P-curve filter |
| Electronic Gear | N/M multiple, N: 1~536,870,911, M: 1~2,147,483,647 (1/4 < N/M < 262,144) |
| Torque Limit Operation | Set by parameters |
| Feed Forward Compensation | Set by parameters |
| Analog Monitor Output | Monitor signal set by parameters (±8V) |
| Communication Interface | RS-485 / CANopen / USB |
| Installation Site | Indoor, free of direct sunlight, corrosive liquids/gas, oil mist, flammable gas, or dust |
| Altitude | 2000 m or lower above sea level |
| Atmospheric Pressure | 86 kPa ~ 106 kPa |
| Operating Temperature | 0°C ~ 55°C (forced cooling required above 45°C) |
| Storage Temperature | -20°C ~ 65°C |
| Humidity | 0 ~ 90% RH (non-condensing) |
| Vibration | 9.80665 m/s² (1G) < 20 Hz, 5.88 m/s² (0.6G) 20 to 50 Hz |
| IP Rating | IP20 |
| Power System | TN System |
| Approvals | IEC/EN 61800-5-1, UL 508C |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22