B&R 8V1090.00-2 ACOPOS Servo Drive — 4 kW Modular 3-Phase Drive for Precision Motion Control

Application Scenarios

In a high-speed packaging machine, the B&R 8V1090.00-2 drives the main feed axis responsible for film tension and cut registration. When the machine transitions from 120 to 300 packages per minute during product changeover, the 8V1090.00-2 must maintain torque linearity across the entire speed range while synchronizing with the rotary cutter via POWERLINK.

The challenge in this application is not raw power delivery but deterministic response under dynamic load. The 8V1090.00-2 addresses this through its 470 µF DC bus capacitance and high-bandwidth current control loop, which maintains stable torque output even when the film roll diameter changes and inertia varies. Its integrated braking resistor handles regenerated energy during rapid deceleration without requiring external chopper hardware, simplifying cabinet design and reducing wiring complexity in space-constrained machine frames.

In a CNC grinding machine, the 8V1090.00-2 controls the wheelhead infeed axis with sub-micron positioning requirements. The drive’s encoder plug-in slot accepts EnDat 2.2 or BiSS interface modules, providing direct high-resolution feedback that eliminates the latency and quantization errors of analog encoder interfaces. The resulting improvement in surface finish quality and wheel dressing accuracy translated to measurable reductions in scrap and rework for the machine builder’s end customers.

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