Advanced Motion Controls B12A6F Brushless PWM Servo Amplifier

The Advanced Motion Controls B12A6F is a brushless PWM servo amplifier engineered to deliver precise, efficient motor control across demanding automation and motion systems. It drives brushless DC motors, brushed DC motors, voice coil motors, and inductive loads with a 33 kHz switching frequency, supporting trapezoidal commutation via Hall sensors with selectable 60/120 degree phasing. The amplifier provides peak output current of 12 A and continuous current of 6 A at maximum continuous output power of 342 W, operating from a single unregulated DC supply between 20–60 VDC.

Technical Specifications

• Peak Output Current: 12 A


• Continuous Output Current: 6 A


• Maximum Continuous Output Power: 342 W


• Maximum Power Dissipation (at Continuous Current): 18 W


• DC Supply Voltage Range: 20–60 VDC


• DC Bus Over Voltage Limit: 62 VDC, 67 VDC


• Minimum Load Inductance (Line-to-Line): 200 µH


• Switching Frequency: 33 kHz


• On-Board Power Supplies: +10 V @ 3 mA (short circuit protected); +6 V @ 30 mA for Hall sensors (short circuit protected)


• Current Monitor Output: 2 A/V scaling


• Current Reference Output: Max ±7.2 V at peak current

Key Features

• Supports multiple control modes: current, open loop, tachometer velocity, velocity, profile current/velocity/position, and cyclic synchronous variants


• Four-quadrant regenerative operation capability


• Comprehensive hardware protection: over-current, over-temperature, over-voltage, under-voltage, phase-phase and phase-ground short circuits, invalid commutation feedback, and power-up reset


• DIP switch configuration for mode selection, commutation phasing, outer loop integration, and test/offset modes


• Analog output signals for real-time current monitoring and feedback

Typical Applications Automation systems, precision motion control, robotics, and OEM equipment requiring efficient brushless motor drive with flexible control architecture and extensive fault detection.

Compatibility & Integration Accepts ±10 V analog commands and digital network commands via EtherCAT. Supports embedded Click&Move program execution. Feedback inputs accommodate Hall sensors, tachometer, and incremental encoder (ENC A, B, I signals). Operates as standalone unit or interfaces with external digital controllers.