Product Description:

The 8V1045.00-1 is a single-axis servo drive produced by B&R Automation within the 8V1 ACOPOS Servo Drives series. Designed to regulate torque and velocity in brushless AC motors, the unit converts three-phase mains energy into controlled output for motion axes in packaging, assembly, and handling machines. By incorporating dynamic braking hardware, the drive provides controlled deceleration that protects mechanical components in high-inertia systems.

At a mains voltage of 400 V, the drive supplies a continuous phase current of 4.4 Aeff, dropping to 3.3 Aeff on 480 V lines; these steady-state limits set the motor frame sizes that can be driven continuously. For acceleration or shock loads, the unit delivers 24 Aeff peak. Its nominal shaft power is 2 kW, which is suitable for mid-range axes in packaging or material-handling equipment. The PWM stage switches up to 20 kHz, giving fine torque resolution while keeping audible noise moderate. A braking resistor rated at 200 W continuous is mounted internally to absorb regenerative energy, while a DC-bus link allows excess power to be shared with other drives. Control electronics and the holding brake are energized from an external 24 Vdc supply that must provide up to 2.5 A plus the brake current. The overvoltage category is II, an integrated power filter limits conducted emissions, and a plug connection speeds installation.

During short-term stops, the resistor can absorb up to 7 kW of regenerative energy, preventing DC-link overvoltage during emergency braking. The enclosure carries an IP20 protection rating, so the drive must be mounted inside a control cabinet but still allows tool-free service access. Installation weight is 4.1 kg, allowing easier handling during maintenance. Thermal flow is guided through an internal aluminum heat sink that keeps semiconductor junctions within safe limits during repeated duty cycles.