Delta ASD-B2-0121-B AC Servo Drive
The Delta ASD-B2-0121-B is a 100W AC servo drive from the ASDA-B2 series, designed for high-precision motion control in compact industrial automation applications. Supporting both single-phase and three-phase 230V input, this drive delivers reliable performance with built-in position, speed, and torque control modes.
Technical Specifications
| Parameter |
Specification |
| Model |
ASD-B2-0121-B |
| Series |
ASDA-B2 Series |
| Output Power |
100 W (0.1 kW) |
| Input Voltage |
200-230V AC, Single-Phase / Three-Phase, 50/60Hz ±5% |
| Continuous Output Current |
0.9 Arms |
| Peak Output Current |
2.7 Arms |
| Encoder Resolution |
17-bit (160,000 p/rev) |
| Control Modes |
Position, Speed, Torque |
| Communication Interfaces |
RS-232, RS-485, Modbus |
| Max. Input Pulse Frequency |
4Mbps (line driver), 200Kpps (open collector) |
| Control Method |
SVPWM (Space Vector Pulse Width Modulation) |
| Cooling System |
Natural Air Circulation |
| Mounting Type |
Chassis Mount |
| Operating Temperature |
0°C ~ 55°C |
| Storage Temperature |
-20°C ~ 65°C |
| Protection Rating |
IP20 |
Key Features
High Precision Positioning
- 17-bit high-resolution encoder (160,000 p/rev) provides exceptional positioning accuracy and smooth low-speed operation
- 10-pole rotor magnetics reduces cogging torque by 10-25% compared to traditional 6 and 8 pole motors, ideal for applications requiring smooth low-speed control
- Three auto-notch filters automatically suppress mechanical resonance for stable system performance
Flexible Control
- Built-in position, speed, and torque control modes — switchable via parameters or analog input
- Supports high-speed pulse input up to 4Mbps for high precision positioning control
- Speed control range: 1:5000
Easy Installation & Maintenance
- Plug-and-play motor auto-identification — no complex setup required
- Separate main and control power circuits for safer maintenance and encoder tracking during E-STOP conditions
- Upward compatibility — existing ASDA series power and encoder cables can be reused
- Screw-type terminal block design eliminates need for plug-in connectors, saving time and cost
Built-in Protection & Durability
- Conformal-coated circuit boards for improved moisture and particulate protection
- Integrated temperature sensors on IGBT for overheating protection
- Built-in protection functions: overcurrent, overvoltage, undervoltage, and encoder error protection
Easy Operation
- ASDA-Soft configuration software for quick tuning, system analysis, real-time scope, and diagnostics
- Easy-to-use digital keypad for parameter setting and direct monitoring
Communication & Connectivity
| Interface |
Description |
| RS-232 / RS-485 |
Modbus communication for multi-drop networking and centralized monitoring |
| CN1 Connector |
I/O signals, pulse input, analog I/O |
| CN2 Connector |
Encoder feedback connection |
| CN3 Connector |
RS-232/RS-485 communication port |
| CN5 Connector |
Two analog outputs for real-time drive/motor status monitoring |
Applications
| Industry |
Application Examples |
| CNC Machinery |
Small milling machines, engraving machines, tool changers |
| Robotics |
Small pick-and-place systems, articulated arms |
| Packaging |
Fillers, sealers, labeling machines |
| Textile |
Small winding machines, embroidery equipment |
| General Automation |
Conveyors, feeders, small printing presses, dispensing machines |
Matching Motor
The ASD-B2-0121-B is commonly paired with:
| Motor Model |
Specifications |
| ECMA-C20401RS |
100W, 3000 rpm, 40mm frame, 17-bit encoder, without brake |
| ECMA-C20401FS |
100W, 3000 rpm, 40mm frame, 17-bit encoder, with brake |
Certifications & Compliance
- UL, cUL, CE, RoHS certified
- RoHS Compliant — environmentally friendly manufacturing
Ordering Information
| Item |
Details |
| Manufacturer |
Delta Electronics, Inc. |
| Part Number |
ASD-B2-0121-B |
| Packaging |
Box |
| Part Status |
Obsolete / End of Life — verify availability before ordering |
Need support?
Contact us for:
- Technical specifications
- Volume pricing
- Matching motor recommendations (ECMA-C20401RS)