B&R 8LSA35.DB060S200-3 6000 RPM Servo Motor with 4 Nm Holding Brake & Smooth Shaft

The B&R 8LSA35.DB060S200-3 is a high-performance synchronous servo motor engineered for applications requiring both high-speed dynamics and fail-safe position holding. Operating at 6000 RPM with 1.60 Nm nominal torque, this motor is the preferred choice for vertical lifting modules, Z-axis robotics, and rotary indexing tables where load retention is critical.

Key Configuration Differentiators

Breaking down the model code reveals what sets this variant apart:

• DB: Multi-turn encoder with EnDat 2.2 interface, tracking absolute position across 4096 revolutions.

• 060: Nominal speed of 6000 RPM – optimized for high-speed, low-inertia motion tasks.

• S200: This suffix is the critical differentiator:

  • S100 (previous model) = Keyed shaft without brake.

  • S200 (this model) = Smooth shaft with integrated 4 Nm holding brake.

Integrated Holding Brake for Vertical Safety

This model includes a factory-integrated 4.00 Nm holding brake. When power is removed, the brake engages to hold the axis stationary, preventing unintended load movement. This makes the 8LSA35.DB060S200-3 particularly suitable for:

• Vertical lifting axes (Z-axis motion)

• Tilting and swiveling units

• Robotic arms requiring position retention during power loss

• Machinery with safety-critical stop conditions

The brake adds 1.09 kg to the motor weight and 0.38 kgcm² to the rotor inertia, which should be considered in dynamic calculations.

Smooth Shaft for Clamping & Friction Connections

Unlike keyed shaft variants, this motor features a 14 mm smooth shaft. This design is optimal for components that transmit torque via friction clamping, such as:

• Collet chucks

• Shrink-fit couplings

• Clamping ring connections

• Shaft couplings requiring precise concentricity without keyway backlash

Absolute Positioning Confidence

The EQI 1331 FS multi-turn encoder communicates via EnDat 2.2, providing absolute position data even after a complete power cycle. This eliminates homing routines on machine startup, reducing downtime and improving operational efficiency.

Why Choose the 8LSA35.DB060S200-3?

• High-Speed Operation: 6000 RPM nominal speed enables faster cycle times for packaging, printing, and pick-and-place.

• Integrated Brake for Safety: 4 Nm holding brake ensures secure load retention during power-off conditions – essential for vertical axes.

• Multi-Turn Absolute Feedback: EnDat 2.2 with 4096 revolution tracking eliminates referencing runs.

• Single-Cable Simplicity: Hybrid cable combines power and feedback, reducing wiring complexity and cabinet space.

• Smooth Shaft Design: Ideal for clamp-type couplings where zero-backlash and high concentricity are required.

• 94% Energy Efficiency: Reduces operating costs and heat dissipation in control cabinets.

• B&R Ecosystem Ready: Optimized for ACOPOS, ACOPOSmulti, and ACOPOS P3 drives with pre-configured motor parameters.

• High Overload Capability: Maximum torque of 9.2 Nm (575% of nominal) for demanding acceleration tasks.

Typical Applications

• Vertical Lifting Modules (Z-axis positioning with brake retention)

• Robotic Arm Joints (Axes requiring fail-safe holding)

• Packaging Indexing Stations with vertical tooling

• Print Registration Systems (High-speed, precise synchronization)

• Rotary Indexing Tables with stop-position holding

• Automated Palletizing Systems

• Carton Erectors & Case Packers

• Labeling Machinery requiring quick acceleration

• Machine Retrofit & Replacement Projects for existing 8LSA35 installations

Frequently Asked Questions (FAQ)

Q1: What is the difference between 8LSA35.DB060S100-3 and S200-3?
The key differences are:

• S100-3: Keyed shaft, without holding brake.

• S200-3: Smooth shaft, with integrated 4 Nm holding brake.
  Choose S200-3 for vertical axes or any application requiring power-off load retention.

Q2: Can the holding brake be used for dynamic deceleration?
No. The 4 Nm brake is a holding brake, designed only for keeping the axis stationary when power is removed. All dynamic deceleration must be performed by the servo drive.

Q3: What drives are compatible with this motor?
B&R recommends the following drives for optimal performance:

• ACOPOS: 8V1045

• ACOPOSmulti: 8BVI0028

• ACOPOS P3: 4X5X

Q4: Is the smooth shaft suitable for pulley or sprocket installations?
Yes, but only with clamping-type or friction-fit coupling methods. For positive-lock keyed connections (timing pulleys, sprockets), the S100-3 keyed shaft variant should be used.

Q5: Does the brake require an external power supply?
The holding brake is electrically controlled via the motor connection. When power to the motor is removed, the brake engages automatically.

Q6: What is the maximum rotational speed of this motor?
The maximum allowable speed is 9000 RPM.