







The DELTA ASDA-B2 Servo Drive ASD-B2-0121-B (100W) is a highly reliable, cost-effective servo drive engineered for precision motion control in industrial automation. As part of the ASDA-B2 series, this drive delivers exceptional feedback resolution with a 17-bit encoder, supporting both position and speed control modes. It is designed to operate with three-phase or single-phase AC input (170–255VAC, 50/60Hz) and features advanced SVPWM control for smooth torque output. The ASD-B2-0121-B is ideal for use in small-scale positioning systems, such as pick-and-place machines, labeling equipment, and conveyor indexing stations. Below is the detailed technical specification table for the entire ASDA-B2 series, including the 100W model.
| Parameter | 100W (ASD-B2-0121-B) | 200W | 400W | 750W | 1kW | 1.5kW | 2kW | 3kW |
|---|---|---|---|---|---|---|---|---|
| Phase / Voltage | Three-phase: 170~255VAC, 50/60Hz ±5% Single-phase: 200~255VAC, 50/60Hz ±5% |
Three-phase: 170~255VAC, 50/60Hz ±5% | ||||||
| Continuous Output Current | 0.9 Arms | 1.55 Arms | 2.6 Arms | 5.1 Arms | 7.3 Arms | 8.3 Arms | 13.4 Arms | 19.4 Arms |
| Cooling System | Natural Air Circulation | Fan Cooling | ||||||
| Encoder Resolution / Feedback | 17-bit (160,000 p/rev) | |||||||
| Control of Main Circuit | SVPWM Control | |||||||
| Tuning Modes | Auto / Manual | |||||||
| Dynamic Brake | – | Built-in | ||||||
| Max. Input Pulse Frequency | Line driver: Max. 500Kpps (low speed) / Max. 4Mpps (high speed) Open collector: Max. 200Kpps |
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| Pulse Type | Pulse + Direction, A phase + B phase, CCW pulse + CW pulse | |||||||
| Command Source (Position) | External pulse train / Internal parameters | |||||||
| Smoothing Strategy (Position) | Low-pass filter | |||||||
| Electronic Gear | N/M multiple: N: 1~(2^26-1), M: 1~(2^31-1) 1/50 < N/M < 25600 |
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| Torque Limit Operation | Set by parameters | |||||||
| Feed Forward Compensation | Set by parameters | |||||||
| Analog Input Command Voltage Range | 0 ~ ±10 VDC | |||||||
| Input Resistance | 10 kΩ | |||||||
| Time Constant | 2.2 μs | |||||||
| Speed Control Range | 3.5:1 (typical) | |||||||
| Command Source (Speed) | External analog signal / Internal parameters | |||||||
| Smoothing Strategy (Speed) | Low-pass and S-curve filter | |||||||
| Torque Limit Operation (Speed) | Set by parameters or via Analog input | |||||||
| Responsiveness Characteristic | Maximum 550 Hz |

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