Delta ASD-A3-0721-E Servo Drive
The Delta ASD-A3-0721-E Servo Drive is designed for precision motion control in industrial automation systems requiring stable torque, accurate positioning, and controlled speed regulation. It supports 0.75 kW output power and operates on 1/3 phase 220 VAC with a permissible input range of 200~230 VAC. The drive delivers 5.1 Arms output current with a peak of 21.21 Arms, using fan cooling and 24-bit resolution with SVPWM control for smooth performance. Manufactured by Delta automation, it is part of the servo drive range and belongs to the ASD series controllers.
| Brand | Delta |
| Product | Servo Drive |
| Model Number | ASD-A3-0721-E |
Delta ASD-A3-0721-E Servo Drive - Technical Specifications:
| Specification | Value |
|---|---|
| Rated Output Power | 0.75 kW |
| Phase | 1/3 PH |
| Voltage | 220 VAC |
| Permissible Voltage Range | Single-phase / three-phase 200~230 VAC, -15%~10% |
| Arms Output Current | 5.1 Arms |
| Instantaneous Max Output Current | 21.21 Arms |
| Cooling System | Fan Cooling |
| Drive resolution | 24-bit (16777216 p/rev) |
| Control of Main Circuit | SVPWM Control |
| Tuning Modes | Auto / Manual |
| Regenerative Resistor | Built-in |
| Pulse Type (Only for Non-DMCNET mode) | Pulse + Direction, A phase + B + CW pulse |
| Max. Input Pulse Frequency(Only for Non-DMCNET mode) | Pulse + Direction: 4Mpps ; CCW pulse + CW pulse: 4Mpps ; A phase + B phase: Single phase 4Mpps ; Max. 200Kpps (Open collector)pps |
| Command Source | External pulse train (PT mode) (Only for Non-DMCNET mode) / Internal parameters (PR mode) |
| Smoothing Strategy | Low-pass and P-curve filter |
| Electronic Gear | Electronic gear N/M multiple N: 1~536870911, M: 1~2147483647 (1/4< N/M < 262144) |
| Torque Limit Operation | Set by parameters |
| Feed Forward Compensation | Set by parameters |
| Analog Monitor Output | Monitor signal can set by parameters (Output voltage range: ±8V) |
| Communication Interface | RS-485 / CANopen / USB |
| Installation Site | Indoor environment (free of direct sunlight), no corrosive liquid and gas (free of oil mist, flammable gas, or dust) |
| Altitude | Altitude 2000m or lower above sea level |
| Atmospheric Pressure | 86kPa ~ 106kPa |
| Operating Temperature | 0ºC ~ 55ºC (If operating temperature is above 45ºC, forced cooling will be required) |
| Storage Temperature | -20 ºC ~ 65 ºC |
| Humidity | 0 ~ 90% RH (non-condensing) |
| Vibration | 9.80665 m/s2 (1G) less than 20Hz, 5.88 m/s2 (0.6G) 20 to 50Hz |
| IP Rating | IP20 |
| Power System | TN System*3*4 |
| Approvals | IEC/EN 61800-5-1，UL 508C |
The Delta ASD-A3-0721-E servo drive is built to deliver stable and responsive motion control in systems that require accurate positioning and controlled speed output. It supports automation equipment where precise torque control and smooth motor operation are essential for maintaining process stability. Its structure allows installation inside control panels while maintaining reliable electrical performance.
In operation, the drive maintains consistent output through 24-bit resolution and SVPWM control, enabling smooth motor movement and stable response under varying load conditions. The fan cooling system supports continuous operation in demanding environments, while the built-in regenerative resistor improves energy handling during motion changes. Communication support through RS-485, CANopen, and USB enables flexible integration into automation systems.
From an application perspective, the Delta ASD-A3-0721-E aligns with systems requiring controlled torque, electronic gear configuration, and adjustable tuning modes. Its support for pulse-based control, parameter configuration, and stable operation within defined environmental conditions ensures compatibility with industrial requirements. This connection between drive capability and system performance makes it a practical solution within the ASD series for motion control applications.
Related Products
