BCL-02820-A00 Kollmorgen
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The Kollmorgen BCL-02820-A00 is part of the Goldline Smart Drives series and supports 3-phase motors with a supply voltage range of 24 to 32 VDC. It delivers a continuous output current of 20 Amps and an output power of 480 Watts, with a PWM frequency of 20 kHz. The drive utilizes Hall sensors or optical encoders for commutation feedback and features a current loop controller.
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Product Description:
The BCL-02820-A00 is a low-voltage servo drive manufactured by Kollmorgen for the Goldline Smart Drives series. As a current-mode amplifier, it conditions direct-current power and modulates it through pulse-width switching so that three-phase brushless motors receive precise stator current. The unit is intended for tightly coordinated axes in industrial automation, supplying controlled torque and velocity to conveyors, pick-and-place heads, or compact gantries where distributed 24 VDC power is already available.
The drive delivers a continuous motor armature current of 20 A, allowing moderate-torque servomotors to maintain rated load without thermal derating. Electrical losses are managed so that the continuous output power reaches 480 W while mounted on a panel heat sink. Incoming logic and power rails share a common supply window of 24/28/32 VDC; within this range the internal regulators also derive ±15 V and +5 V rails for sensors and controls. Switching occurs at a carrier of 20 kHz, keeping audible noise low and reducing current ripple in the motor windings. Because the firmware operates as a current loop controller only, velocity or position regulation must be handled by the upstream motion processor, simplifying the amplifier’s internal structure and minimizing propagation delay.
During rapid accelerations the power stage can source a peak current of 20 A for short intervals, matching the continuous rating so the designer relies on external duty-cycle limits for overload protection. The DC bus is reflected to the motor terminals as 20/24/32 VDC depending on line conditions, so back-EMF selection must consider these limits. Rotor position is supported through Hall Sensors or Optical Encoders, and the phase bridge is wired for 3 symmetrical motor phases. Additional features include a 230 VAC compensation input for line disturbance sensing, a dedicated +5 V hall supply, and auxiliary ±15 V outputs that each provide 10 mA for small analog circuits.
