ACDA-22 Reliance Electric Vectrive AC Servo Converter

Product Overview

Key Specifications

• Part Number: ACDA-22 (alternative model EXCA-22)

• Manufacturer: Reliance Electric (Rockwell Automation)

• Product Series: Vectrive AC Servo

• Rated Power: 22 kW (30 HP)

• Input Voltage: 380–480 VAC, 3-phase, 50/60 Hz

• Output Voltage: 540–680 VDC (regulated DC bus)

• Continuous Current: 45 A (DC)

• Regeneration: Built-in regenerative braking (returns energy to AC line)

• Protection: Overvoltage, undervoltage, overcurrent, short-circuit, overtemperature, phase loss

• Enclosure: NEMA 1 (IP20), steel chassis with coated finish

• Cooling: Forced-air cooling (integrated fan)

• Operating Temperature: 0°C to +45°C (32°F to 113°F)

• Dimensions (W×H×D): 320 mm × 500 mm × 200 mm (12.6" × 19.7" × 7.9")

• Weight: Approx. 28 kg (62 lb)

• Status: Obsolete / Legacy (discontinued by OEM; available as refurbished/used)

Core Features and Benefits

• Regenerative Capability: Recaptures kinetic energy during deceleration and feeds it back to the AC power grid, reducing energy consumption and heat generation compared to traditional resistor braking.

• High Power Density: Compact 22 kW design saves panel space while delivering robust power for high-torque servo applications.

• Stable DC Bus Regulation: Maintains consistent DC voltage under fluctuating loads, ensuring precise servo motor speed and position control.

• Comprehensive Protection: Multi-layered protection safeguards the converter and connected servo drives from electrical faults, minimizing downtime and maintenance costs.

• Rugged Industrial Design: Durable steel enclosure and vibration-resistant components withstand harsh factory conditions, including dust, moisture, and mechanical shock.

• Seamless System Integration: Compatible with Reliance Electric Vectrive servo drives (e.g., ACDA series), enabling easy retrofit into existing motion control systems.

Applications

• Machine Tools: CNC milling machines, lathes, and grinding machines

• Material Handling: High-speed cranes, hoists, and automated guided vehicles (AGVs)

• Packaging & Printing: Web handling, roll-to-roll processing, and high-speed packaging lines

• Plastics & Rubber: Injection molding machines, extruders, and blow molding equipment

• Legacy System Upgrades: Replacement for aging Vectrive converters in Reliance Electric servo installations

Lifecycle and Availability

• Original Production: Discontinued by Reliance Electric/Rockwell Automation; classified as legacy/obsolete.

• Current Availability: Supplied by authorized distributors as professionally refurbished and tested used units.

• Warranty: 12‑month warranty for refurbished units; extended options available.

• Testing: Each unit undergoes full electrical testing, including insulation resistance, continuity, load, and regeneration performance verification, to meet original Reliance Electric specifications.