The Aerotech BA30-320 is a high-performance servo amplifier for precise motion control in industrial automation. This compact, self-contained unit delivers 15 A continuous and 30 A peak output current across a 40–320 VDC range, with jumper-selectable operation for three-phase AC brushless or single-phase DC brush motors. The amplifier supports velocity, torque, dual-phase (brushless), and current command modes via ±10 VDC analog input, accepting quadrature encoder or tachometer feedback signals. A 20 kHz IGBT power stage ensures reliable commutation, while complete electrical isolation—transformer-isolated control supply and opto-isolated drive, current, and fault signals—minimizes loop noise and safeguards against power-stage transients. Built-in protection covers under-voltage faults, over-current and over-temperature conditions, output short circuits, and DC bus overvoltage. The internal 5 VDC, 250 mA supply powers encoders and Hall Effect devices. Optional shunt regulation (–S suffix models) manages elevated bus voltage and provides fuse-open shutdown capability.
Technical Specifications
• Motor Compatibility: Three-phase AC brushless; single-phase DC brush (jumper-selectable)
• Control Modes: Velocity, torque, dual-phase (brushless only), current command
• Power Stage: 20 kHz IGBT
• Continuous Output Current: 15 A
• Peak Output Current (2 seconds): 30 A
• Output Voltage Range: 40–320 VDC
• Command Input: ±10 VDC (velocity or torque)
• DC Bus: Up to 320 VDC operation
• Encoder Power Supply: 5 VDC, 250 mA
• AC Line Input: Direct connection
– Key Features
• Transformer-isolated control voltage supply and opto-isolated signal paths
• Dynamic power limit circuit protects output transistors
• Current limit time-out circuit with programmable duration shutdown
• Protection: under-voltage (control and bias), RMS current limit, over-temperature, over-current, phase-to-phase and phase-to-ground short circuits, DC bus overvoltage
• External commutation capability
• Optional internal shunt regulator (–S models)
– Feedback & Integration
• Accepts quadrature encoder or tachometer input
• Encoder signal converted to voltage representation of speed
• Isolated current feedback and fault signal paths
– Typical Applications
Precision motion control in industrial automation requiring DC-isolated amplification and multi-mode command flexibility.
