B8501 Danaher
Wake Industrial LLC is not an authorized distributor of this product.
The Danaher B8501 is a regenerative drive in the Quadraline Regenerative Drives series and is compatible with EC2B-L, EC3B-L, and EC5B-L actuators. It provides continuous shaft power of 1,000 watts, peak shaft power of 1,900 watts, and uses a brushless servo motor with analog position control. The drive features a closed-loop absolute linear positioning system and supports 115 or 230 VAC power input.
Internal Product Review
The B8501 is a Danaher regenerative servo drive built for brushless servo operation with analog position control. Closed-loop absolute linear positioning and a no-homing architecture support precise motion setup with fast startup. Continuous shaft power of 1,000 W and peak shaft power of 1,900 W make the B8501 a strong choice for demanding actuator applications.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The B8501 belongs to the Quadraline Regenerative Drives series manufactured by Danaher. It is a regenerative drive that pairs with linear brushless actuators to return excess kinetic energy to the supply, improving the overall electrical efficiency of positioning stages. Within automated assembly lines or metrology equipment, the drive regulates current and velocity so the attached slide reaches commanded coordinates without overshoot or excessive heat buildup. Its regenerative operation redirects energy produced during deceleration instead of dissipating all of that energy as heat.
This model draws power from a single-line or two-line mains source rated at 115/230 VAC. Internally, it excites a brushless servo motor and controls that motor with analog position control, allowing an external controller to issue ±10 V commands that translate directly into motion. Continuous mechanical output is limited to 1,000 W, while momentary transients can reach 1,900 W so the axis can accelerate or decelerate quickly without saturation. Because the current loop is tuned for a sinusoidal back-EMF profile, torque ripple is minimal and thermal loading of the windings remains predictable. This control arrangement supports responsive movement while maintaining stable operation during repeated positioning cycles.
Feedback for the closed loop comes from a linear potentiometer mounted on the actuator, providing absolute position data to the controller and eliminating the need for a homing sequence at power-up. The position loop uses a closed-loop absolute linear control scheme, meaning each command corresponds to an unambiguous physical position rather than an incremental count. Compatible electromechanical elements include the EC2B-L, EC3B-L, and EC5B-L actuators, which use consistent feedback scaling across the supported actuator sizes. Absolute feedback allows the system to recognize the slide position as soon as control power is available. Regenerative energy handling reduces the heat that would otherwise be produced by resistive braking during rapid indexing and repeated deceleration.
