B&R 8YS-K0055R0.005-0 | Genuine OEM B&R Servo Motor

B&R 8YS-K0055R0.005-0 | Genuine OEM B&R Servo Motor

  • Exact Model: 8YS-K0055R0.005-0
  • OEM Brand: B&R Automation (Bernecker + Rainer)
  • System Series: 8YS High-Dynamic Synchronous Servo Motor Series
  • Core Function: Converts ACOPOS servo inverter current loops into ultra-fast angular velocity and dynamic torque for rapid indexing, high-speed pick-and-place, and short-stroke positioning modules.
  • Module Type: Synchronous Three-Phase AC Servo Motor
  • Defining Specs: Nominal Power: 0.55 kW | Rated Speed: 6000 RPM | Continuous Current (I_N): 4.04 A | Nominal Voltage: 640 VDC | Feedback: Integrated Analog Resolver

Description

B&R 8YS-K0055R0.005-0 | Genuine OEM B&R Servo Motor

 

Dynamic Product Introduction

The 8YS-K0055R0.005-0 belongs to B&R’s specialized 8YS high-dynamic synchronous servo motor line, engineered specifically for applications demanding low rotor inertia and extremely fast acceleration curves. Rated for 0.55 kW output power at velocities reaching up to 6000 RPM, this motor is a performance workhorse in high-speed sorting, flying shears, and fast packaging machinery.

Built for seamless integration with B&R ACOPOS and ACOPOS P3 drive systems, the unit utilizes an analog resolver (R0) for position feedback. Unlike optical encoders that can succumb to mechanical shock or vibration wear, the electromagnetic resolver design ensures rugged position tracking and reliable current commutation, making the 8YS series exceptionally durable in harsh manufacturing environments.

8YS-K0055R0.005-0

8YS-K0055R0.005-0

Key Technical Specifications

Parameter Specification Field Note / Operational Limit
Rated Output Power 0.55 kW Continuous Mechanical Power Output
Rated Speed (n_N) 6000 RPM Continuous maximum velocity limit
Continuous Current (I_N) 4.04 A RMS Nominal operating current draw (\Delta T = 100 K)
Peak Current (I_0) 9.30 A RMS Maximum short-duration acceleration current limit
Stall / Peak Torque 3.77 Nm Peak High dynamic torque ratio for fast moves
DC Bus Voltage 640 VDC Nominal intermediate circuit voltage
Feedback System Analog Resolver (R0) Rugged electromagnetic transformation feedback
Protection Rating IP65 Standard Seal against industrial dust and water jets (with shaft seal)
Cooling Method Natural Convection Requires standard 30mm free air gap around casing
Thermal Protection Integrated Thermal Sensor Direct temperature monitoring via resolver connector pins

 

Global Sourcing & Live-Test SOP (Transparency Core)

Sourcing replacement or surplus motion hardware requires thorough testing before deployment. Installing a motor with damaged resolver bobbins or bearing raceway pitting will lead to axis control lag or overcurrent trips. Every unit undergoes strict quality validation before shipping:

  1. Inbound Mechanical Check:

    We clamp the shaft onto a precision test block to verify radial and axial runout using digital dial indicators (<0.015mm tolerance). Motor nameplates are checked against B&R database records to filter out counterfeit relabeling.

  2. ACOPOS Drive Simulation Setup:

    The unit is interfaced with an authentic B&R ACOPOS drive channel connected to an Automation Studio control rack.

  3. Diagnostic Test Routine:
    • Resolver Carrier Signal Analysis: Oscilloscope traces verify zero carrier distortion across 360^\circ of shaft rotation.
    • Full-Speed Dynamic Profiling: The unit performs a continuous 3-hour velocity profiling test up to 6000 RPM to monitor thermal stabilization, bearing noise signatures, and current balance.
    • Dielectric Insulation Test: A 1000V DC surge test across phase-to-phase and phase-to-ground paths guarantees zero insulation breakdown.
  4. Final Packaging:

    The shaft extension receives protective grease and caps. The complete assembly is wrapped in static-shielding film and cradled in custom high-density foam packaging.

 

The Field Engineer’s Pitfall Guide

  • ❗ Tampering with the Rear Housing Causes Commutation Faults:

    Never loosen or disassemble the rear end-cap containing the resolver on an R0 motor variant. B&R factory-aligns the resolver stator relative to the rotor’s magnetic poles. Shifting the resolver body even slightly alters the commutation angle, causing the ACOPOS drive to draw massive overcurrent spikes or throw Commutation Angle Error 9005 immediately upon enabling power.

  • ❗ Forcing Connector Swivel Under Cable Tension:

    While circular power and feedback connectors swivel for flexible cable routing, swiveling the connector while the mating cable plug is locked down will twist and shear internal stator leads. Always disconnect the mating cable before adjusting connector orientation.

  • ❗ Impact Damage During Coupling Installation:

    Hammering gear couplings or timing pulleys onto the precision-ground shaft extension will collapse internal ball bearing races and fracture the resolver winding bobbin positioned directly behind the rear bearing. Always draw couplings on smoothly using a threaded puller tool anchored in the shaft’s tapped center hole.

 

Intent-Driven FAQ

Will my ACOPOS drive automatically configure itself when I install this motor?

If your Automation Studio project utilizes standard B&R motor database entries, selecting 8YS-K0055R0.005-0 automatically configures matching current limits, resolver excitation frequencies, and velocity loop parameters.

What is the primary advantage of the 8YS series over standard 8MSA motors?

The 8YS series features a lower rotor moment of inertia designed specifically for ultra-high dynamic acceleration cycles. While 8MSA motors excel in standard continuous torque applications, 8YS motors reach higher top speeds (up to 6000 RPM) faster, making them ideal for short-stroke high-frequency axes.

Can I replace an 8YS resolver motor with an optical encoder motor (e.g., EnDat E3)?

Not without modifying your drive configuration and cabling. Optical EnDat encoders require digital serial data communication lines and a different feedback card/pinout at the ACOPOS drive compared to analog resolver channels. Your Automation Studio hardware tree must match the exact installed feedback code.

What should I check if Automation Studio throws a motor overtemperature fault upon installation?

First, check the feedback cable connection. The motor’s embedded thermal sensor routes through dedicated pins inside the resolver connector. An unseated connector or recessed pin creates an open circuit, which the drive interprets as an extreme thermal fault above 150^\circC.

How can I verify that a replacement 8YS motor is factory unused?

Inspect the mounting flange holes, shaft keyway, and gold connector pins. Unused factory-sealed units show no bolt clamping marks or paint scraping around the flange holes, no keyway wear, pristine gold connector pins without scratch marks, and original protective shipping covers intact over the shaft extension.

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