Product Overview
The ASD-A2-1021-F (ASD A2 1021 F) is a high-performance 1 kW AC servo drive within Delta's flagship ASDA-A2 series. Designed for sophisticated motion control, this drive operates on a 220 V single-phase input and is engineered for high-speed, high-precision applications such as CNC tooling, robotic arms, and automated packaging systems. The ASD-A2-1021-F distinguishes itself with a 20 bit superior resolution encoder and advanced internal motion control functions. By integrating a powerful "F" type model configuration that supports advanced communication protocols and full closed-loop control, this drive eliminates the need for complex external controllers in many multi-axis synchronization tasks, significantly reducing system latency and total cost of ownership.
Technical Configuration
The ASD-A2-1021-F is characterized by its "F" type model logic, which denotes a comprehensive feature set including support for high-speed communication and full closed-loop control. The module features a 1 kHz frequency response, allowing for rapid signal processing and minimized settling times during high-inertia moves. Its internal 20 bit absolute encoder (1,280,000 pulses/rev) ensures exceptional positioning accuracy even at low speeds. The "F" variant is particularly optimized for applications requiring electronic cam (E-CAM) profiles and capture/compare functions, making it a versatile hub for complex motion sequences that require precise synchronization with external sensors or auxiliary axes.
Technical Specifications
| Feature |
Specification |
| Model |
ASD-A2-1021-F |
| Brand |
Delta |
| Series |
ASDA-A2 |
| Rated Output Power |
1.0 kW |
| Input Voltage |
1-Phase 220 VAC |
| Encoder Resolution |
20 bit (1,280,000 p/rev) |
| Control Mode |
Position / Speed / Torque / Internal Position (PR) |
| Communication |
DMCNET / RS-485 / RS-232 |
| Interface Type |
F (Full-Function / Full Closed-Loop) |
| Frequency Response |
1 kHz |
| Operating Temperature |
0 to 55 deg C |
| Protection Rating |
IP20 |
| Weight |
2.0 kg (4 kg shipping weight) |
Technical FAQs
What is the significance of the "F" type in the A2 series?
The "F" type represents the full-function model. Unlike basic models, it supports DMCNET (Delta’s high-speed motion bus) and full closed-loop control, allowing the drive to receive feedback directly from an external linear scale or encoder to eliminate mechanical backlash.
Can this drive be used for high-speed synchronized cutting?
Yes. With its built-in E-CAM function (720 points for contouring) and high-speed DMCNET communication, the ASD-A2-1021-F is perfectly suited for flying shear, rotary cut, and other synchronized motion applications.
Does the ASD-A2-1021-F support dual-feedback loops?
Yes. In Full Closed-Loop mode, the drive utilizes the motor encoder for velocity feedback while simultaneously reading a second encoder or linear scale for position feedback. This ensures the actual load position is accurate regardless of mechanical transmission errors.
Engineering & Installation Guide
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Full Closed-Loop Integration: When connecting an external scale to the CN5 port for closed-loop control, ensure the resolution of the external scale is correctly calculated in the drive parameters. Improper scaling will lead to "positioning deviation" errors or unstable servo loops.
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Thermal Dissipation: For 1 kW drives, heat management is critical. Install the drive vertically with at least 50 mm of clearance above and below. In enclosed cabinets, ensure an axial fan provides at least 0.6 m3/min of airflow to prevent thermal tripping during high-duty cycle operations.
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Regenerative Braking: If the application involves high inertia or fast deceleration, the internal 40 Ohm regenerative resistor may reach capacity. If a "Regenerative Error" (ALE05) occurs, install an external 40 Ohm/1000 W brake resistor across the P and C terminals to dissipate excess energy safely.