Product Description:

The 8EI8X8HWD10.0400-1 servo drive is manufactured by B&R Automation for the 8EI Servo Drives series. Within the ACOPOS P3 8EI platform, this compact power stage converts three-phase mains power into regulated motor currents, enabling precise velocity and torque control in production machinery. In packaging, printing, and assembly equipment, it closes the loop between a PLC motion task and the connected motors. This closed-loop operation helps multiple axes remain synchronized during high-speed production cycles. Its compact format also allows the power stage to fit within space-limited control cabinets while supporting coordinated motion applications.

This unit is supplied as a 2-axis module and delivers a continuous phase current of 8.8 Aeff to each motor output. The power section accepts a three-phase 200–480 VAC supply, allowing connection to a common industrial supply range without an autotransformer. The enclosure supports wall mounting, so the heat sink can mate directly with the cabinet back panel for effective heat transfer. An internal braking resistor dissipates regenerative energy produced when high-inertia loads decelerate, reducing the need for an external braking resistor under suitable operating conditions. The drive is supplied in the standard option class without module-specific modifications. It also comes without a front cover, which must be considered when planning cabinet access and protection. No auxiliary plug-in module is included because the drive’s primary functions are incorporated into the main assembly.

Functional safety is provided by hardwired STO safety technology with encoder support, allowing torque production on both axes to be disabled through a dedicated safe torque-off circuit. This hardwired arrangement provides a direct safety path instead of relying solely on standard control communication. Signal wiring uses Connector Set 1 with a one-row configuration, providing a consistent termination layout for the required field connections. A second two-row connector set is not installed, so wiring plans should use the available one-row interface. The dual-channel design allows one module to control two connected motors while maintaining separate regulated motor outputs. Embedded control and safety functions reduce reliance on auxiliary cards and preserve the compact form of the servo drive. The lack of customized add-ons also keeps the physical connection arrangement consistent for machines using this model.