B&R 8LSA35.DA030S000-3

Product Introduction:

The B&R 8LSA35.DA030S000-3 is a compact servo drive from the ACOPOS 8L series, designed for single-axis servo motion control in high-performance machine applications. It delivers precise position, velocity, and torque control with integrated safety functions. The model features a rated current of 30A and supports multi-protocol communication including EtherCAT, PROFINET, POWERLINK, and Sercos III.

Technical Specifications:

Functional Features:

• Three control modes: Position, Velocity, Torque — switchable in real-time
• Electronic camming with up to 32 cam profiles
• Integrated PLC functionality (motion logic executed directly in the drive)
• Jerk-limited trajectory planning for smooth motion profiles
• Adaptive resonance suppression for mechanical vibration elimination
• Energy regeneration via braking resistor or grid feedback

Performance Parameters:

Structural Features:

• Compact book-style design — suitable for cabinet mounting
• Integrated power stage — no external power module required
• Pluggable terminal blocks for power, motor, encoder, and communication
• LED status indicators: Power, Ready, Fault, Operation
• Optional IP65 front cover for harsh environments

Working Principle:

The 8LSA35.DA030S000-3 uses a field-oriented control (FOC) algorithm to independently control torque and flux in the motor. The drive receives position/velocity/torque setpoints from the master controller via EtherCAT or other fieldbus. The internal three-phase IGBT inverter modulates the DC bus voltage using Space Vector PWM (SVPWM) to drive the synchronous servo motor. The absolute encoder provides real-time rotor position feedback, enabling sensorless commutation at zero speed and high-precision closed-loop control at all speeds.

Key Advantages:

• 30A continuous / 90A peak — high dynamic performance for demanding applications
• Multi-protocol support — seamless integration into any automation network
• Integrated safety functions (STO, SS1, SLS, SLP) — eliminates need for external safety relays
• Compact footprint — saves cabinet space compared to conventional drives
• Jerk-limited motion — reduces mechanical wear and improves product quality

Installation Requirements:

• Mounting: Vertical or horizontal wall/cabinet mounting with minimum 100mm clearance on all sides
• Power Connection: 3-phase 360–750 V DC — use shielded cables, max 10m from DC bus
• Motor Cable: Use B&R recommended shielded servo cables, max length 20m
• Grounding: Protective earth connection < 0.1 ohm
• Ambient: 0–55°C, derate current by 2% per °C above 40°C
• Ventilation: Natural convection or forced air — minimum airflow 0.5 m/s

Usage Precautions:

• Do not operate without a properly connected motor or braking resistor — DC bus overvoltage will damage the drive
• Encoder cable must be routed separately from power cables — minimum 100mm separation
• Firmware updates must be performed via Automation Studio — do not interrupt during update
• Braking resistor must be connected for applications with frequent deceleration — calculate energy per cycle
• Do not exceed 90A peak current for more than 3 seconds — thermal protection will trigger