Advanced Motion Controls BE15A8J-H Brushless PWM Servo Amplifier

The Advanced Motion Controls BE15A8J-H is a brushless PWM servo amplifier engineered for precision motion control in robotics, automation, and applications. Operating from 20–80 VDC, this compact amplifier delivers 15 A peak and 7.5 A continuous output current with a maximum continuous power rating of 570 W, making it suitable for demanding three-phase brushless motor systems as well as single-phase brushed, voice coil, and inductive loads.

Technical Specifications

• Supply voltage: 20–80 VDC


• Peak output current: 15 A


• Continuous output current: 7.5 A


• Maximum continuous output power: 570 W


• Maximum power dissipation: 30 W (at continuous current)


• DC bus over-voltage limit: 88 VDC


• DC bus under-voltage limit: 9 VDC


• Switching frequency: 31 kHz


• Internal bus capacitance: 94 µF


• Minimum load inductance (line-to-line): 100 µH


• Auxiliary outputs: +6 VDC (30 mA)


• Dimensions: 63.5 × 50.8 × 22.9 mm


• Weight: 95.8 g

Key Features

• Command inputs: ±10 V analog, PWM and direction signals


• Feedback support: Hall sensors, tachometer (±60 VDC)


• Trapezoidal commutation for three-phase brushless motors


• Multiple operation modes: current, Hall velocity, duty cycle open-loop, tachometer velocity


• Adjustable parameters: loop gain, current limit, input gain, offset via 14-turn potentiometers


• On-board test potentiometer for signal verification


• Comprehensive protection: invalid commutation feedback, over-current, over-temperature, over-voltage, under-voltage, phase-phase and phase-ground short circuit detection

Typical Applications Motion control systems requiring precision speed or torque regulation, automated machinery, robotic actuators, and systems demanding reliable brushless motor operation across variable load conditions.

Compatibility & Integration P1 signal connector: 16-pin, 2.54 mm spaced friction-lock header. P2 power connector: 5-port, 5.08 mm spaced screw terminal. Certifications: UL, cUL, CE Class A (LVD and EMC), RoHS compliant.