Overview
The Allen-Bradley 1389-AA09 /A is a Series A servo amplifier from the Bulletin 1389 product family, designed to provide high-performance 4-quadrant power amplification for industrial servo motor systems. This unit operates on a 3-phase power source and is primarily matched with the 1326 series of AC servo motors for precise motion control, acceleration, deceleration, and speed regulation in demanding industrial applications.
Key Features
- 4-quadrant operation enables bidirectional motor control with smooth acceleration and deceleration
- 1.6 kilowatt continuous power rating supports sustained servo motor loads
- 310V DC input with 310V bus voltage (11A max) for stable, regulated operation
- 210V RMS AC output at 9A nominal current delivery to servo motor windings
- 3-phase power supply compatibility for industrial plant integration
- Compact form factor (381 × 381 × 203.2 mm) mounts on cabinet panels or frames
- Proven compatibility with 1326AD-K2G, 1326AD-K3G, 1326AD-K4F, and 1326AD-K5E servo motors
- Built-in protective features and operating temperature range of 0–60°C (32–140°F) for manufacturing environments
Technical Specifications
- Power Rating: 1.6 kilowatts (continuous)
- Input Voltage (DC Bus): 310V DC nominal, 11A maximum
- Output Voltage (AC): 210V RMS
- Output Current: 9A nominal
- Power Supply: 3-phase
- Operation Type: 4-quadrant (motoring and regenerating)
- Operating Temperature: 0–60°C (32–140°F)
- Storage Temperature: 0–65°C (32–149°F)
- Relative Humidity: 5–95% non-condensing
- Maximum Operating Altitude: 1000 meters (3300 feet)
- Dimensions: 381 × 381 × 203.2 mm (15 × 15 × 8 inches)
- Weight: 3.6 kilograms (8 pounds)
- Series/Bulletin: Bulletin 1389, Series A
- Mounting Style: Open frame, panel or cabinet mountable
Typical Applications
The 1389-AA09 /A servo amplifier is widely deployed in:
- Machine tool spindle and feed motor control systems
- Automated assembly and material handling equipment
- Precision positioning systems requiring bidirectional torque control
- Industrial conveyor and indexing systems with dynamic load reversal
- Process equipment requiring smooth acceleration and deceleration profiles
- OEM retrofit and legacy system upgrades using 1326 servo motors
Compatibility & Replacements
The Allen-Bradley 1389-AA09 /A is explicitly rated for integration with the following 1326 series servo motors: 1326AD-K2G, 1326AD-K3G, 1326AD-K4F, and 1326AD-K5E families. When used with these matched motors, the amplifier delivers up to 300% peak torque during acceleration and deceleration cycles, enabling responsive motion profiles. The unit is discontinued by the manufacturer but remains available through surplus and refurbished inventory channels. Engineers should verify connector pinouts and control signal interfaces before retrofit or replacement installations. For system-specific configuration details, consult the Bulletin 1389 product manual or contact your systems integrator.
