Description
B&R 8LSA35.DA030S000-3 | 8LSA Servo Motor, 3000 RPM 2.3Nm
Architect’s Product Breakdown
The B&R 8LSA35.DA030S000-3 belongs to B&R’s 8LSA high-dynamic synchronous motor family. Engineered for high-acceleration and high-precision applications—such as CNC machinery, robotics, packaging lines, and textile manufacturing—this motor combines high power density with low rotational inertia.
The DA feedback designator specifies a single-cable hybrid connection solution utilizing an inductive EnDat single-turn absolute encoder. Instead of requiring separate cables for motor power and encoder feedback, the single hybrid cable transports both energy and high-speed digital feedback data between the motor and the ACOPOS servo drive. This reduces cabling footprint, simplifies drag-chain routing, and minimizes installation errors.
Operating on a nominal 560 VDC DC-bus link, the motor features 4 pole pairs (8 poles), self-cooling construction (Type A), an 80 mm centering flange (j6 fit), and an IP64 protection class.
8LSA35.DA030S000-3
Model Code Breakdown
8LSA 3 5 . DA 030 S 0 0 0 -3
│ │ │ │ │ │ │ │ │ └── Generation / Revision Designator (-3)
│ │ │ │ │ │ │ │ └───── Special Options (0 = Standard)
│ │ │ │ │ │ │ └────── Holding Brake (0 = Without Brake)
│ │ │ │ │ │ └─────── Shaft Design (0 / S = Smooth Shaft, no keyway)
│ │ │ │ │ └───────── Nominal Speed (030 = 3,000 RPM)
│ │ │ │ └───────────── Connection & Encoder (DA = Angled swivel hybrid connector, EnDat single-turn)
│ │ │ └──────────────── Stator Length (5 = Length 5)
│ │ └──────────────────── Motor Frame Size (3 = Size 3 Flange, 80mm centering)
│ └────────────────────── Motor Series (8LSA Synchronous Servo)
Key Technical Specifications
| Parameter | Specification |
| Motor Type | Permanent Magnet Synchronous Servo Motor (PMSM) |
| Frame Size / Centering | Size 3 / 80 mm Flange Centering (j6 fit) |
| Stator Length | Length 5 |
| Stall Torque (M_0) | 2.30 Nm |
| Nominal Speed (n_N) | 3,000 RPM |
| Number of Pole Pairs | 4 (8 Poles) |
| Nominal Bus Voltage | 560 VDC |
| Feedback System | EnDat single-turn inductive (32 lines / single-cable solution) |
| Connection Style | Single-cable hybrid solution, angled rotatable swivel connector |
| Shaft Design | Smooth Shaft (without keyway) |
| Holding Brake | None (Standard configuration without brake) |
| Degree of Protection | IP64 (without shaft oil seal) |
| Cooling Method | Self-cooling / Natural convection |
| Drive Compatibility | B&R ACOPOS, ACOPOSmulti, ACOPOS P3 |
Field Engineer’s Pitfall Guide
WARNING: Single-Cable Hybrid Connector Bending Radius
The hybrid single-cable solution carries high-voltage motor power conductors alongside high-speed digital EnDat data lines. Exceeding the minimum dynamic bend radius in cable carriers can compromise signal integrity or lead to intermittent EnDat communication faults in Automation Studio.
WARNING: Smooth Shaft Coupling Torque
The model designation
S/0indicates a smooth cylindrical shaft without a keyway. Ensure high-precision clamping hubs or shrink-disc couplings are cleaned of grease and torqued to manufacturer specifications with a torque wrench. Slippage under high acceleration will cause immediate position tracking errors.
WARNING: Absence of Mechanical Holding Brake
The
000option in this model specifies no internal holding brake. Do not deploy this motor on vertical axes or suspended loads without an external mechanical safety brake, as the axis will drop when drive power is removed.
QA & Testing SOP
- Visual & Mechanical Inspection:
- Inspect housing, mounting flange, and smooth shaft surface for scores, corrosion, or mechanical damage.
- Rotate the shaft manually—verify smooth, consistent bearing rotation without binding or abnormal friction.
- Confirm the swivel hybrid connector housing rotates smoothly within its designed angular range.
- Electrical & Insulation Diagnostics:
- Measure phase-to-phase winding resistance (U-V, V-W, W-U) using a calibrated milliohm meter to verify balanced phases (\pm 2\%).
- Perform a 500 VDC insulation breakdown test between motor power terminals and chassis earth; resistance must exceed 100 M\Omega.
- Single-Cable EnDat Functional Test:
- Connect motor to an ACOPOS test drive using an official B&R hybrid cable harness.
- Verify automatic motor parameter identification via the embedded EnDat electronic nameplate in B&R Automation Studio.
- Dynamic Closed-Loop Bench Test:
- Perform a full velocity sweep up to 3,000 RPM.
- Monitor phase currents, position feedback stability, vibration spectrum, and thermal equilibrium under continuous rotation.
- ESD Cleaning & Shipping Preparation:
- Install protective plastic caps over the smooth shaft and hybrid connector.
- Wrap in ESD anti-static packaging with desiccant and secure inside foam-cushioned shipping containers.
Technical FAQ
What does the single-cable solution (DA designator) mean?
The “DA” connector option integrates motor power conductors and digital EnDat encoder communication lines into a single hybrid cable interface. This eliminates the need for a separate feedback cable, saving space, weight, and installation time.
Is this motor equipped with an oil seal on the shaft?
No. The standard 8LSA35.DA030S000-3 is rated to IP64 and does not include a shaft oil seal. If installed in gearbox applications or environments with splashing liquids directly at the shaft passage, ensure an external seal or an IP65 variant with a shaft seal is selected.
Can I replace an 8LSA35 motor with a standard 2-cable B&R motor?
Mechanically and electrically, yes, provided the mounting flange and torque specs match. However, you will need to replace the single hybrid cable harness with dual power and feedback cables and reconfigure the I/O channel configuration in B&R Automation Studio.
What is the difference between 3,000 RPM (030) and 6,000 RPM (060) variants?
The 030 variant is wound specifically for a nominal speed of 3,000 RPM at 560 VDC bus voltage. The 060 variant features different stator windings optimized for higher speeds up to 6,000 RPM, which alters the motor’s voltage constant (K_e) and back-EMF profile.
