Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | B&R Industrial Automation |
| Model | 8MSA5X.RO-X400-1 |
| Product Type | Synchronous AC Servo Motor |
| Motor Series | 8MSA5X |
| Motor Frame Size | Size 5 Extra-Long Stack |
| Rated Voltage | 400 VAC three-phase |
| Rated Speed | 3000 RPM |
| Maximum Speed | Up to approximately 4500 RPM (configuration dependent) |
| Rated Power | Approx. 4 kW class |
| Feedback System | Resolver feedback (R0 configuration) |
| Brake | No holding brake (RO configuration) |
| Cooling Method | Forced ventilation / configuration dependent |
| Protection Rating | IP65 typical |
| Mounting | Flange-mounted servo motor |
| Drive Compatibility | B&R ACOPOS servo drives |
| Application | Packaging machines, CNC equipment, robotics, industrial automation |
Product Introduction
B&R 8MSA5X.RO-X400-1 Overview
The B&R 8MSA5X.RO-X400-1 is an 8MSA series three-phase synchronous servo motor designed for demanding industrial motion applications. It provides closed-loop speed and position control when paired with compatible B&R ACOPOS servo drives, making it suitable for coordinated multi-axis machinery.
The B&R 8MSA5X.RO-X400-1 is commonly maintained in existing automation equipment where mechanical fit, motor tuning parameters, and machine software are already based on the original motor specification. Before replacement, verify resolver type, motor parameters, drive configuration, cable compatibility, and Automation Studio project data.
8MSA5X.RO-X400-1
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A servo motor failure rarely appears as a simple motor problem. A machine may stop with drive alarms, positioning errors, or unexpected axis behavior. The motor may test correctly, but incorrect feedback configuration or mismatched parameters can prevent the axis from returning to service.
The B&R 8MSA5X.RO-X400-1 operates as part of a complete motion chain. Motor, feedback device, drive hardware, and software configuration must all match.
Typical Applications
- Packaging Machinery – High-speed indexing, filling, sealing, and synchronized conveyor motion.
- CNC Machine Tools – Feed axes requiring accurate positioning and repeatable movement.
- Printing Equipment – Registration control and coordinated roller movement.
- Material Processing Systems – Servo-controlled cutting, forming, and positioning applications.
Technical Pitfalls to Avoid
- Feedback System Verification
The R0 version uses resolver feedback. Do not replace it with an encoder-based motor without confirming drive hardware and software compatibility.
- Motor Parameter Matching
Servo drives depend on correct motor data for current limits, torque control, and thermal protection. Confirm the exact motor identification before commissioning.
- Mechanical Installation Checks
Check flange dimensions, shaft coupling, mounting alignment, and load inertia. A mechanically similar motor may still require retuning.
Field note: Before removing an 8MSA5X motor, record the ACOPOS drive parameters, motor identification data, feedback wiring, axis position offsets, and alarm history. These records can save significant commissioning time.
Related Products
- B&R 8MSA5L.RO-X400-1
Related 8MSA5 series motor with a different rotor stack length. Used when torque requirements are lower than the extra-long 5X version. - B&R 8MSA5D
Similar Size 5 motor variant with different torque characteristics. Requires load calculation before substitution. - B&R 8MSA6X
Larger frame motor option for applications requiring increased torque capacity. - B&R ACOPOS 1045 Servo Drive
Compatible drive family used with 8MSA motor systems for motion control applications. - B&R ACOPOS 1090 Servo Drive
Higher current servo amplifier option used with larger 8MSA motor configurations. - B&R 8MS Servo Motor Series
Motor family including multiple frame sizes and torque ratings for industrial motion systems. - B&R Automation Studio Software
Engineering environment used for configuring motion axes, servo parameters, and machine applications. - B&R X20 Controller Series
PLC platform commonly integrated with ACOPOS motion systems for synchronized machine control. - B&R ACOPOSmulti Drive System
Multi-axis servo drive platform used in advanced machine automation applications.
