ASD-A0421-AB Delta 400W AC Servo Drive High Resolution

Delta ASD-A0421-AB Servo Drive

The Delta ASD-A0421-AB is a high-performance AC servo drive. It delivers 400W of precise motor control. This unit supports multiple command sources and pulse types. It features a built-in dynamic brake for safety. The drive uses natural air cooling for quiet operation. It provides exceptional speed control across a wide range.

Key Features

• Precise Control: Supports high-resolution encoder feedback up to 10000ppr.
• Multiple Input Options: Accepts various pulse command formats for flexibility.
• Built-in Safety: Integrated dynamic brake enhances system security.
• Wide Speed Range: 1:5000 speed control ratio for versatile applications.
• Easy Tuning: Auto and manual tuning modes simplify setup.

Technical Specifications

• Brand: Delta
• Model: ASD-A0421-AB
• Product Type: AC Servo Drive
• Rated Power: 400W
• Input Voltage: Single-phase/Three-phase 200-230V AC
• Cooling Method: Natural Air Convection
• Encoder Resolution: 2500 pulses per revolution (ppr)
• Feedback Resolution: 10000 pulses per revolution (via multiplication)
• Control Method: Space Vector Pulse Width Modulation (SVPWM)
• Tuning Options: Automatic and Manual Adjustment Modes
• Braking System: Internal Dynamic Brake
• Maximum Pulse Frequency: 500Kpps (Line Driver), 200Kpps (Open Collector)
• Pulse Command Types: Pulse+Direction, A/B Phase Quadrature, CW/CCW Pulse Pairs
• Command Sources: External Pulse Signals or Internal Parameter Settings
• Signal Filtering: Low-pass and P-curve Smoothing Filters
• Analog Input Range: 0 to ±10 VDC
• Input Impedance: 10 kΩ
• Speed Regulation Range: 1:5000
• Unit Weight: 1.5 kg (3.3 lbs)
• Communication Interface: Standard servo communication protocol
• Protection Features: Overcurrent, Overvoltage, Overheat, Short Circuit Protection
• Operating Temperature: 0°C to 55°C (32°F to 131°F)
• Storage Temperature: -20°C to 80°C (-4°F to 176°F)

Installation and Configuration

• Mount in a well-ventilated location using natural convection cooling.
• Connect using appropriate pulse command cables for your controller.
• Select the correct pulse type and command source in parameters.
• Use auto-tuning for initial setup, then fine-tune manually if needed.
• Ensure proper grounding and follow EMC guidelines.

Typical Applications

• Precision CNC machine tools and milling equipment.
• Industrial robots and automated handling systems.
• Packaging machinery and labeling equipment.
• Textile machines and winding systems.
• Semiconductor manufacturing equipment.

Frequently Asked Questions (FAQ)

Q: What is the difference between encoder and feedback resolution?

• A: The physical encoder provides 2500ppr. The drive internally multiplies this to 10000ppr for finer position control resolution.

Q: When should I use auto-tuning versus manual tuning?

• A: Use auto-tuning for initial setup and standard applications. Use manual tuning for special mechanical systems or when optimizing for specific performance needs.

Q: What does the built-in dynamic brake do?

• A: It quickly stops the motor when power is removed, preventing uncontrolled coasting and enhancing operational safety.