B&R 8LSA46.R0045D000-0 ACOPOS Synchronous Servo Motor

Description

Key Technical Specifications

Product Introduction & Supply Chain Strategy

The B&R 8LSA46.R0045D000-0 is a heavy-duty, high-dynamic synchronous AC servo motor designed to pair with B&R ACOPOS and ACOPOSmulti drive systems. Equipped with a Size 4 frame (115 mm flange) and Length 6 stator stack, this motor provides substantial continuous torque and rapid acceleration for demanding axes in metalworking, packaging, plastics injection molding, and high-speed material handling.

By utilizing an analog resolver feedback system (“R” designation), this unit excels in harsh, vibration-prone industrial environments where optical encoders might suffer optical glass cracking or signal distortion. A motor fault caused by bearing mechanical wear or winding breakdown immediately halts the automated machine axis. Installing a genuine New Surplus 8LSA46.R0045D000-0 motor guarantees zero runtime, factory magnet integrity, and immediate restoration of operational throughput without waiting on long OEM factory lead times.

8LSA46.R0045D000-0

8LSA46.R0045D000-0

Installation & Alignment Guide

1.Stage 1: Pre-Installation (Prep & Safety):Mechanical & Electrical Prep.

• Lock out main electrical power to the ACOPOS drive cabinet and verify DC bus rail voltage is fully discharged (< 50 VDC).
• Inspect the 8LSA46 motor pilot flange, smooth shaft, and electrical connectors for transit damage or debris.
• Ensure the mating gearbox or keyless clamping sleeve is clean, rust-free, and aligned properly.

2.Stage 2: Removal:Mechanical Extraction.

• Unbolt and disconnect the circular power and resolver connectors by rotating the bayonet locking rings counter-clockwise.
• Loosen the clamping shaft coupling and unbolt the motor from the machine mounting faceplate.
• Carefully pull the motor straight off the pilot flange without applying axial or side impacts to the shaft.

3.Stage 3: Mechanical & Electrical Connection:Mounting & Shaft Coupling.

• Align the 115 mm pilot flange onto the machine mounting face and hand-tighten the mounting bolts.
• Torque the mounting bolts crosswise to specified torque values using a calibrated torque wrench.
• Secure the keyless shaft coupling to the smooth shaft, ensuring zero axial or radial pre-load on the motor bearings.
• Connect the shielded power and resolver cables until circular bayonet connectors snap firmly into their locked positions.

4.Stage 4: Drive Initialization & Testing:Drive Commutation & Test Run.

• Apply 24 VDC logic power to the ACOPOS drive; confirm the drive detects resolver signals without feedback fault alarms.
• Verify motor parameter table settings in B&R Automation Studio software match the 8LSA46.R0045D000 nameplate data.
• Perform a low-speed jog command to verify proper resolver commutation angle, correct direction of rotation, and smooth motion.

Firmware/Software Integration & Resolver Notes

• Automation Studio Integration: Fully supported in all versions of B&R Automation Studio via standard ACOPOS drive hardware catalog definitions.
• Resolver Feedback Advantages: Unlike optical encoders, analog resolvers contain no glass scales or complex internal electronics. They transmit robust sinusoidal/cosinusoidal analog signals, making this motor model ideal for high-vibration, high-shock applications.
• Shielding & Cable Routing: Ensure the resolver cable utilizes braided shielding connected to the drive grounding bar. High-frequency electrical noise from the inverter power cable can interfere with resolver feedback if unshielded or poorly grounded.

Frequently Asked Questions (FAQ)

Q: What is the difference between an 8LSA motor with an EnDat encoder versus a Resolver?

A: Models with an “E” designation use digital absolute EnDat optical encoders (high precision, digital parameter memory). Models with an “R” designation (like this 8LSA46.R0045D000-0) use analog resolvers, which offer extreme shock/vibration tolerance and high heat resistance at the expense of absolute multi-turn digital position memory.

Q: Does this model variant include an integrated holding brake?

A: No. The “0” in the brake position indicates a motor without an internal mechanical holding brake. If your application involves vertical axes that drop under gravity during power loss, an external mechanical brake or a brake-equipped motor variant is required.

Q: Why choose New Surplus over a refurbished or rewound servo motor?

A: Rewound or rebuilt motors frequently suffer from degraded permanent magnets (caused by past over-temperature events) and improper resolver angle alignment. Our New Surplus inventory consists of 100% unused hardware with original factory magnet strength, pristine bearing assemblies, and factory-aligned feedback devices.

Q: Is this 8LSA46.R0045D000-0 motor guaranteed authentic B&R manufacture?

A: Yes. All stock is guaranteed genuine original B&R equipment. Each unit undergoes comprehensive visual, shaft rotation, and electrical winding checks prior to shipment.

Q: What degree of ingress protection does this motor offer?

A: The standard housing provides IP64 protection against dust ingress and water splash. When fitted with an optional radial shaft seal ring and fully locked connectors, protection can be upgraded to IP65.

Q: What warranty applies to this New Surplus B&R motor?

A: We provide a full 1-Year Comprehensive Replacement Warranty. If any operational or mechanical fault occurs under normal operating conditions within 12 months, we will replace the unit or issue a full refund.