Product Description:

The BEL-090-30 from Copley Controls is a compact digital servo drive offered in the Accelnet CANopen Modules series. This module connects to a CANopen network and supplies regulated phase current to brushless or brushed motors used in industrial machinery. By executing onboard current, velocity, and position control, it translates motion commands into drive signals that match motor requirements. The module therefore functions as a bridge between a system controller and the electromechanical load in pick-and-place gantries, conveyors, and semiconductor handling stations.

The power stage can accept a DC bus up to 90 Vdc and delivers a continuous output of 15 Adc while supporting a peak of 30 Adc for 1 s to handle acceleration surges. Current is updated by the drive’s control ASIC at 16 kHz, whereas position and velocity loops are refreshed at 4 kHz to maintain tight tracking. Applications working with inductive loads must provide at least 200 µH of motor inductance so the PWM filters function correctly. A dedicated brake transistor can sink 1.0 Adc for holding or dynamic-stop functions, and an optically isolated output supports 300 mAdc for interfacing with external relays. Logic power at 5 V is available on a service pin that supplies up to 500 mA to encoders or sensors. Protective features include an HV undervoltage threshold of 14 Vdc that forces a controlled shutdown when the supply collapses.

Command information enters through a differential analog channel that tolerates a range of ±10 Vdc. With a 12-bit resolution and an input impedance of 5.05 kΩ, this port allows fine torque or velocity setpoints without loading upstream DACs. The auxiliary output provides a regulated 5 Vdc rail for feedback devices, keeping wiring simple in distributed installations. An internal temperature sensor trips at 70 °C, ceasing gate drive before semiconductor limits are exceeded and preventing thermal damage during high-duty cycles.