Delta ASD-A2-1021-F AC Servo Drive ASDA-A2 Series (1 kW)

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

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

• 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.

• 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.

• 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.