Product Core Brief

• Model: 8LSA35.E2060D000-0
• Brand: B&R Industrial Automation
• Series: 8LSA Frame 3 Slim Natural-Cooled Synchronous Servo Motor Line
• Core Function: Delivers fast closed-loop speed, position and torque control for high-speed packaging, electronics assembly and textile automation axes
• Product Type: 3-Phase Permanent Magnet Synchronous Servo Motor, single-turn EnDat 2.2 absolute encoder, no integrated holding brake
• Key Specs: 6000 rpm nominal speed | 1.6Nm rated torque | 400V winding class | Straight fixed Intercontec circular connectors
• Note: New Original inventory; matched ACOPOS P3 / ACOPOSmulti 400V servo drives sold separately

Key Technical Specifications

• Rated Power: 1.005 kW
• Nominal Speed: 6000 rpm; Max Mechanical Speed: 12000 rpm
• Rated Torque: 1.6 Nm; Stall Torque: 2.3 Nm; Peak Torque: 4.8 Nm (<5% duty cycle)
• Feedback System: EnDat 2.2 single-turn absolute inductive encoder, no multi-turn position storage
• Cooling Method: Passive natural convection slim frame construction
• Insulation Class: Class F; Continuous operating ambient range -20°C to +40°C; torque derating above +40°C
• Enclosure Rating: IP64 shaft and connector end; IP54 rear housing
• Winding Supply: 3×400VAC high-voltage servo drive supply class
• Mechanical Mount: Standard compact IEC square flange, smooth keyless output shaft, 80mm centering diameter j6 fit
• Connectors: Separate fixed straight Intercontec circular plugs for power and EnDat signal lines
• Rotor Moment of Inertia: 8.1 kg·cm²
• Unit Weight: 3.1 kg (brake-less variant)
• Thermal Time Constant: 10 min natural convection heat dissipation
• Certifications: CE, UL cULus, EAC, RoHS industrial compliance

Product Introduction

This compact frame single-turn absolute encoder servo targets high-cycle small automation axes where digital EnDat feedback delivers precise positioning in moderately noisy cabinet environments. Fixed straight circular connectors simplify tight cabinet cable routing without rotating joint wear points.

The unit’s fanless cooling eliminates mechanical wear failures, while motor parameter auto-identification cuts commissioning steps when paired with compatible 400V drive hardware. Absence of an integrated brake shortens overall motor length for narrow machine frame layouts. Single-turn encoder design reduces internal component count compared to multi-turn variants to lower long-term failure risk.

QA & Testing SOP (Transparency Building)

1. Incoming Inspection: Cross-reference OEM serial database for genuine hardware validation; inspect output shaft surface for scoring, circular connector pins for bending, and cast aluminum housing for casting voids.
2. Live Testing: Couple the unit to calibrated dynamometer; supply 3×400VAC from matched ACOPOS P3 drive; run 24-hour cyclic load test at 75% rated torque, logging EnDat position repeatability and steady-state speed error hourly.
3. Electrical Testing: 500V Megger insulation test between stator windings and motor housing; pass threshold >10MΩ isolation resistance.
4. Firmware/Config Backup: Capture encoder winding ID via Automation Studio; photograph power/feedback connector pinout and shaft orientation for replacement matching.
5. Final QC & Packaging: Apply thin anti-corrosion protective film to output shaft; secure inside shock-absorbent ESD crate; attach printed test tag with dynamometer torque curve trace data.

Installation Pitfalls & Guide (Engineer to Engineer)

❗ Low-Voltage Drive Mismatch: This motor requires 400V-class ACOPOS drives; pairing with 230V low-voltage servo units creates insufficient torque output and consistent speed oscillation at full production load.❗ Shaft Seal Damage During Coupling Fit: Hammer strikes to the motor output shaft crack front IP64 oil seal, allowing cutting fluid ingress that shorts stator windings within weeks of runtime. Use only hydraulic press-fit tooling for couplings.❗ Parallel Cable Routing Noise: Running EnDat signal cables alongside high-current motor power wiring creates digital signal distortion, generating ±8 count position jitter during high-speed contouring cycles.❗ Over-tightened Fixed Connector Strain Relief: Excessive clamp force on straight circular cable glands crushes internal twisted shield pairs and degrades EnDat signal noise immunity.❗ Unmitigated ESD Exposure: Low-humidity static discharges damage onboard EnDat encoder signal circuitry; wear grounded anti-static wristbands before mating circular feedback connectors.

4-Step Replacement Guide

1. Pre-install: Full machine power down; photograph power/EnDat connector pinouts, coupling gap dimensions, and cable bend routing for exact replication.
2. Removal: Loosen coupling clamping fasteners; disconnect both fixed circular plugs; unbolt flange mounting hardware and extract the unit from machine frame.
3. Install: Secure new unit to flange with OEM specified torque values; press-fit coupling without shaft impact; set cable strain relief to moderate tension before final fastening.
4. Power-on Test: Execute auto motor identification routine in Automation Studio; run low-speed jog cycles; verify stable single-turn EnDat position readings before full production speed operation.

FAQ (Frequently Asked Questions)

Q: Does this single-turn EnDat encoder retain absolute multi-turn position after full power loss?A: No. The encoder only stores position data within one mechanical rotation. Every power cycle requires a full homing sequence to re-establish machine zero position, unlike multi-turn EnDat motor variants.Q: Can this unit sustain continuous operation at peak 4.8Nm torque?A: No. Peak torque is limited to brief acceleration/deceleration duty cycles (<5% total runtime). Sustained torque above rated 1.6Nm exceeds Class F insulation thermal limits and accelerates winding degradation.Q: Which ACOPOS drive families fully support the 400V winding and EnDat single-turn feedback?A: ACOPOS P3 8EI40-series and ACOPOSmulti 8BVI40-series high-voltage servo drives. Older 230V low-voltage drive variants lack native 400V winding parameter sets.Q: Is this brake-less unit safe for vertical Z-axis lifting loads?A: Not for safety-critical vertical axes. This variant has no integrated holding brake; uncontrolled load drop will occur during power loss. Specify D-suffix braked motor models for vertical applications.Q: What ambient temperature triggers continuous torque derating?A: Torque output derates linearly above +40°C cabinet ambient; at max +60°C operating temperature, continuous rated output falls to 76% of nominal 1.6Nm torque.Q: Are generic third-party circular motor cables compatible with fixed straight connectors?A: Physically compatible, but uncertified cables lack full EMC twisted shielding. Field data shows 3.8x higher EnDat communication noise with non-B&R cabling during high-speed motion.Q: What warranty coverage applies to surplus stock of the motor?A: Standard 12-month functional warranty covers stator winding and encoder manufacturing defects; damage from coupling impact, coolant ingress, or unshielded wiring-induced signal failure is fully excluded from coverage.