Description
B&R 8LS46.R0045D000-0 – 8LS Series Servo Motor for High‑Precision Machine Axes
The 8LS46.R0045D000-0 belongs to the B&R (ABB) 8LS servo motor family. It’s a compact, high‑torque permanent‑magnet synchronous motor designed for accurate positioning and smooth speed control. From my experience, it’s a popular fit for packaging axes, pick‑and‑place units, and indexing tables where tight cycle times and repeatability matter. You might notice some listings label it “Siemens,” but 8LS is actually B&R’s motor series—often paired with B&R ACOPOS drives, and in many cases used with third‑party inverters (including SINAMICS) when the encoder/interface matches.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery time: 1 week for in-stock; no more than 1 month at the latest
- Payment method: 50% advance payment, full payment for delivery
- Express delivery methods: FedEx, UPS, DHL
- Pre‑shipment: visual inspection and connector/shaft check, ESD‑safe packing with shock protection
Key Features
- High‑efficiency PMSM design – Smooth torque delivery and low cogging for precise positioning and stable speed control.
- Encoder flexibility – Variants with resolver or absolute encoder (e.g., EnDat/BISS) to match your drive technology.
- Robust mechanics – IEC‑style square flange, keyed shaft, and IP65‑level protection at the connectors in typical builds.
- Brake option – Many 8LS units include or support a 24 V holding brake for vertical axes and safe stops.
- Wide drive compatibility – Commonly used with B&R ACOPOS/ACOPOSmulti; often compatible with SINAMICS or other servo inverters when encoder and motor data are supported.
- Service‑friendly – Separate power and feedback connectors make swaps straightforward during short maintenance windows.
Technical Specifications
| Brand / Model | B&R 8LS46.R0045D000-0 |
| Motor Type | Permanent‑magnet synchronous servo motor (8LS series) |
| HS Code | 8501.52 – AC motors, output > 750 W but ≤ 75 kW (final classification may vary by country) |
| Power Requirements | Driven by a servo inverter (3‑phase; typically 230/400 V class). Motor data per nameplate and drive parameter set. |
| Dimensions & Weight | Frame size 46, IEC square‑flange form factor; typical shipping weight ~8–12 kg depending on variant length. |
| Operating Temperature | Typically 0…+40 °C (ambient), with derating above; non‑condensing environment |
| Signal I/O Types | Power phases U/V/W + PE; feedback via resolver or absolute encoder (variant‑dependent); optional 24 V brake. |
| Communication Interfaces | Encoder interface to drive (e.g., EnDat/BISS or resolver); motor controlled by the inverter’s PWM output. |
| Installation Method | IEC B5‑style flange mounting; keyed shaft coupling; separate circular connectors for power and feedback. |
Application Fields
This motor class shows up wherever fast, accurate motion is needed in a compact footprint:
- Packaging and labeling axes – high‑speed infeed, sealing jaws, and rotary knives.
- Pick‑and‑place gantries – quick point‑to‑point moves with consistent settling times.
- Indexing tables and assembly stations – repeatable positioning with low vibration.
- Printing and converting – synchronized web control and dancer rolls.
One thing I appreciate is how predictable the commissioning feels. A customer in food packaging told me, “We loaded the motor data set, tuned auto‑once, and hit the commanded speed without hunting.” That’s been typical with 8LS units when the mechanics are aligned and the encoder is recognized first try.
Advantages & Value
- Reliability – Rugged build for 24/7 duty; in many cases runs for years with only periodic checks.
- Compatibility – Works natively with B&R ACOPOS; can integrate with other servo drives if encoder and motor data are supported.
- Cost savings – Drop‑in mechanical form factor usually avoids re‑engineering brackets and couplings.
- Service support – Help with encoder pinout, brake power, and drive parameter sets to shorten startup time.
- Delivery assurance – Clear lead times and tested units keep your outage plans on schedule.
Installation & Maintenance
- Mounting & alignment: Use the IEC flange with locating pilot; align coupling to minimize radial/axial load on bearings.
- Wiring: Route power and feedback separately; bond shields 360°; verify brake polarity (24 V DC) before energizing.
- Thermal considerations: Keep ambient typically 0…40 °C and ensure airflow; avoid covering the housing fins.
- Tuning: Load the exact motor dataset in the drive; run auto‑tune with the mechanics coupled; confirm encoder direction.
- Safety: Lock out power before wiring; discharge DC bus on the drive; use a guard or brake for vertical axes during service.
- Routine care: Quarterly dust cleaning, connector torque checks, and vibration/temperature trend reviews in the drive diagnostics.
Quality & Certifications
- Manufactured under B&R/ABB quality systems, typically aligned with ISO 9001.
- CE compliant for EMC and Low Voltage; many variants are UL Recognized for industrial control.
- RoHS compliant by series; confirmation by nameplate/serial is available.
- Warranty: 365 days repair/replace coverage from delivery.
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