B&R 8LSA46.R0045D000 Synchronous Servo Motor 4500 RPM

Description

Product Introduction

The B&R 8LSA46.R0045D000 is a robust, high-performance three-phase AC synchronous servo motor engineered for high-speed dynamic response. Designed to integrate directly with B&R ACOPOS servo drive families, this motor delivers continuous torque output and high rotational velocity across automated packaging machines, rotary cut-off knives, material handling transfers, and multi-axis CNC gantries.

Unlike delicate optical encoder motors that struggle in high-vibration or high-heat environments, the 8LSA46.R0045D000 utilizes an analog resolver feedback unit. This heavy-duty design provides maximum electrical and mechanical noise immunity, making it an ideal choice for harsh production floors where reliability and zero dynamic lag are required.

Key Technical Specifications

Application Scenarios & The “Trench” Experience

It’s 1:30 AM on a Friday night during peak production. A high-speed rotary fly-knife on a continuous cardboard corrugating line throws a position error and trips out the main ACOPOS drive. The root cause? An optical glass encoder inside the old motor shattered from relentless frame vibration. The line is down, costing $3,500 per hour in idle labor and delayed freight contracts. You unbox a fresh 8LSA46.R0045D000, swap it onto the gear head, lock down the swivel connectors, update the motor type in B&R Automation Studio, and hit cycle start by 2:15 AM. The rugged resolver inside takes the shock loading in stride, and production runs clean all weekend.

• Rotary Cutters & Fly-Knives – High-speed cutting axes – 4,500 RPM velocity capability enables rapid acceleration and deceleration cycle profiles without overheating.
• Stamping & Metal Forming Feeds – High-vibration coil handling – Analog resolver feedback handles heavy mechanical vibration where glass-scale encoders fracture.
• Automated Palletizers & Transfers – Horizontal conveyor indexing – Compact Size 46 frame delivers high power density in tight machine footprints.

8LSA46.R0045D000

Transparency SOP: Quality Assurance & Testing

We don’t just ship boxes; we test them on actual B&R ACOPOS test benches before they ever reach your plant.

1. Inbound Inspection: Anti-counterfeit checks, OEM housing seal inspection, shaft runout check, and connector pin integrity verification.
2. Electrical Parameter Checks: Insulation resistance testing (Megger) across U, V, and W phase windings to ground, followed by precise phase-to-phase resistance balance testing.
3. Live Rig Testing: Mounted to an ACOPOS drive test rig to run dynamic motion curves up to the full 4,500 RPM nominal speed rating.
4. Resolver Alignment Verification: Oscilloscope and Automation Studio signal diagnostics to verify correct resolver offset angle relative to the motor stator pole positions.
5. Final QC & Anti-static Packaging: Degreasing, protective shaft cover installation, heavy ESD bag wrapping, and custom foam packaging for safe transit.

The Veteran’s Tech Trap Guide (Crucial Value-Add)

• ⚠️ This Model Has NO Brake (D000 Designation): The D000 suffix code indicates this motor is NOT equipped with a holding brake. If you install this on a vertical Z-axis or sloping incline, the payload will free-fall the instant drive power drops. Use an external brake or select a brake-equipped model (D200).
• ❗ Resolver vs. EnDat Parameter Setup: This motor relies on a Resolver for feedback, not an optical EnDat encoder. Because resolver motors do not feature an electronic nameplate chip, you must manually select the exact motor model string (8LSA46.R0045D000) inside B&R Automation Studio. Otherwise, the drive will fail to compute the field-oriented vector control correctly.
• ⚠️ Smooth Shaft Coupling Requirements: This model features a standard smooth shaft. Never try to cut a custom keyway into it—you risk bending the rotor shaft and ruining the front bearing. Use a high-quality clamping hub or shrink-disc coupling, and make sure to clean off all factory anti-rust oils before torquing the bolts.
• ❗ Never Force Swivel Connectors: The power and resolver cable connectors swivel to accommodate cable routing. Rotate them by hand. Do NOT apply channel-lock pliers or wrenches, or you will shear the internal wires off the terminal board inside the motor cap.

Frequently Asked Questions (FAQ for Conversion)

Q: Is the 8LSA46.R0045D000 motor hot-swappable?

A: No. Disconnecting or plugging in the motor cable while the ACOPOS intermediate DC bus is charged (560-750 VDC) will cause an electrical arc flash across the connector pins. This can permanently damage the motor connectors and blow the power modules in the drive. Always lock out power first.

Q: How does the ACOPOS drive know the motor parameters if it uses a resolver?

A: Resolver motors do not have an EnDat auto-identification chip. You must select the 8LSA46.R0045D000 from the hardware catalog in B&R Automation Studio during software configuration, which loads the factory parameter table directly into the drive project.

Q: Can I use this 4500 RPM motor to replace a slower 3000 RPM model of the same frame size?

A: Mechanically, yes—the mounting flange matches. However, you must verify that your gear reducer can handle 4,500 RPM and that your ACOPOS drive has enough current capacity to deliver the required peak torque at higher speeds.

Q: What warranty comes with this motor?

A: We provide a full 12-month operational warranty on all New Surplus and Refurbished B&R motors starting from the day of delivery to your shop floor.

Q: Why buy New Surplus B&R hardware over direct OEM factory orders?

A: B&R factory lead times for specialized servo motors can run anywhere from 12 to 24 weeks. Sourcing surplus hardware gets you genuine, tested B&R components in a matter of days at a significantly reduced price point, minimizing costly downtime.