B&R 8BVI0028HWDS.000-1 ACOPOSmulti Inverter Module

Product Overview

The B&R 8BVI0028HWDS.000-1 is a high-performance inverter module from the ACOPOSmulti series, specifically configured for wall-mounted installation. As a cornerstone of the ACOPOSmulti motion control ecosystem, this unit is designed to handle high-precision motor control in demanding industrial environments, including packaging machinery, robotics, and complex CNC applications. This module operates on a nominal DC bus voltage of 750 VDC, providing the power density and rapid response times required for multi-axis synchronization. By optimizing energy efficiency through sophisticated switching frequency management, it ensures reliable torque delivery while minimizing thermal losses in the cabinet.

Technical Configuration

The 8BVI0028HWDS.000-1 is engineered for seamless integration into the ACOPOSmulti backplane architecture. Its power consumption profile is dynamic, calculated based on the specific switching frequency and motor current ($I_M$) to maintain precise thermal control. The module includes integrated input capacitance of 23.5 µF to stabilize the DC bus voltage, protecting the drive from transients. Power management is highly scalable; the maximum power consumption is defined by the base module power (28 W) plus the specific requirements of the power supply modules (PSMC), auxiliary 24 VDC outputs, and holding brake demands, ensuring the system can be precisely tailored to the application's energy needs.

Technical Specifications

Power Dissipation (Switching Frequency)

The power loss ($P_{loss}$ in Watts) of the module varies significantly based on the selected switching frequency and motor current ($I_M$):

• 5 kHz: $1.2 \cdot I_M^2 + 2.62 \cdot I_M + 100$
• 10 kHz: $2.56 \cdot I_M^2 + 2.8 \cdot I_M + 200$
• 20 kHz: $6 \cdot I_M^2 - 9.4 \cdot I_M + 430$

FAQs

How is the total power consumption calculated for this drive?

The total consumption is the sum of the base 28 W constant load, the power drawn by the connected PSMC modules, any external 24 VDC auxiliary loads, and the energy required to disengage/engage the holding brakes.

Does the switching frequency affect the drive's thermal management?

Yes. As shown in the power dissipation formulas, increasing the switching frequency from 5 kHz to 20 kHz substantially increases the internal heat generation. It is critical to select the lowest switching frequency that meets your application's dynamic performance requirements.

Can this module be used in high-humidity environments?

The unit is rated for operation in environments with 5% to 85% relative humidity (non-condensing). For transport and storage, it can withstand up to 95% at 40 deg C, but it must be kept free of condensation during active operation.

Installation and Operational Guidelines

• Wall Mounting and Thermal Clearance: When mounting the 8BVI0028HWDS.000-1, ensure sufficient vertical clearance above and below the unit. The ACOPOSmulti system relies on efficient airflow for cooling; blocking these paths will lead to premature derating or thermal shutdown.
• DC Bus Stability: Ensure that the 750 VDC bus is supplied by a compatible ACOPOSmulti power supply module. Use high-quality shielded cabling for the motor connections to mitigate electromagnetic interference, especially when operating at higher switching frequencies (e.g., 20 kHz).
• Maintenance: Regularly inspect the cooling fans and air channels for debris. In environments with metallic dust or other conductive particles, ensure the cabinet maintains a positive pressure or uses appropriate air filtration to prevent internal short circuits across the power electronics.