The Delta ASD-A2-0721-E is an ASDA-A2 series AC servo drive rated 750 W, supplied as the ethercat model. The ASDA-A2 is Delta’s high performance servo family, with a 20-bit encoder interface, full closed loop capability and electronic cam motion.
Technical Specifications
| Brand | Delta Electronics |
|---|---|
| Series | ASDA-A2 |
| Model number | ASD-A2-0721-E |
| Rated output power | 750 W |
| Input voltage | 200-255 V single-phase or three-phase |
| Rated output current | 5.10 Arms |
| Peak output current | 15.30 A |
| Model type | EtherCAT model |
| Communication and control | EtherCAT fieldbus control, internal position (PR) control and electronic cam. No analog or pulse command inputs |
| Encoder interface | 20-bit, 1,280,000 pulses per revolution |
| Control modes | PT, PR internal position, speed and torque, plus dual modes |
| Full closed loop | Yes, second encoder input on CN5 |
| Electronic cam | Yes |
| Enclosure | IP20 |
| Matching motors | Delta ECMA C1, E1, F1 series (20-bit encoder) and CA absolute series |
Key Features
- 20-bit encoder interface, 1,280,000 pulses per revolution
- Position (PT), internal position (PR), speed and torque control
- Full closed loop control with a second encoder input on CN5
- Electronic cam (E-CAM) function for synchronised motion
- Pulse input up to 4 Mpps and RS-232 and RS-485 Modbus on every model
- Auto tuning, vibration suppression and gantry synchronisation
Typical Applications
- Semiconductor and PCB equipment
- SMT and precision placement
- Machine tools and grinding
- Printing and converting machinery
- Robotics and multi-axis synchronised motion
- Flying shear and rotary cut-off
Frequently Asked Questions
What does the E suffix mean on ASD-A2-0721-E?
EtherCAT model. EtherCAT fieldbus control, internal position (PR) control and electronic cam. No analog or pulse command inputs.
Which motor pairs with ASD-A2-0721-E?
ECMA motors with a 20-bit encoder, that is the C1, E1 and F1 prefixes, or a CA series absolute encoder motor, at the same power rating.
Does ASD-A2-0721-E support absolute encoder motors?
Yes. The ASDA-A2 works with the ECMA CA series absolute encoder motors, which keep position through a power cut with a battery fitted, so the machine does not need to re-home.
How is the ASDA-A2 different from the ASDA-B2?
The A2 is the high end family. It adds a 20-bit encoder instead of 17-bit, internal position control with an electronic cam, full closed loop with a second encoder, and fieldbus options including CANopen, DMCNET and EtherCAT.
Ordering and Delivery
RendatSP supplies this item to factories, machine builders and maintenance teams across the Middle East and Africa. Send us the model number and the quantity you need and we will come back with price, lead time and shipping to your country. Technical help with selection and replacement is included at no charge.



