8MSA2S.R0-K4 Multi-Axis Servo Drive

Parameter Name	Parameter Value
Product Model	B&R 8MSA2S.R0-K4
Manufacturer	B&R Industrial Automation (ABB Group)
Product Type	Multi-Axis Servo Drive
Axes Capacity	8 axes (independent control)
Continuous Power	2 kW/axis (16 kW total)
Peak Power	6 kW/axis (48 kW total, 100 ms)
Input Voltage	3-phase 400–480V AC ±10%
Communication	EtherCAT P (100 Mbit/s)
Safety Functions	STO, SS1, SOS (SIL 3/PL e)
Feedback	EnDat 2.2, BiSS C, HIPERFACE DSL
Control Loop	≤50 μs (current), ≤100 μs (position)
Protection	Short circuit, overtemp, overload
Operating Temp	0°C to +55°C (derating >40°C)
Dimensions	238 x 74 x 225 mm
Certifications	UL, CE, IEC 61800-5-2

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Categories: DCS, Other

Description

Product Overview

The B&R 8MSA2S.R0-K4 is a high-density multi-axis servo drive engineered for advanced motion control applications within B&R’s ACOPOSmulti platform. Designed for synchronized control of up to 8 axes from a single module, this drive integrates power electronics, safety functions, and real-time communication in a compact form factor. The 8MSA2S.R0-K4 delivers 2 kW per axis (continuous) with peak power up to 6 kW, supporting servo motors up to NEMA 34 frame sizes. Its EtherCAT P connectivity enables single-cable motor integration (power + feedback + safety) while reducing wiring by 70%. With SIL 3/PL e safety certification (Safe Torque Off, Safe Stop 1) and IP20 protection, this drive excels in packaging, robotics, and machine tool applications requiring precision synchronization (±1 μs axis coordination) and space optimization.

Technical Specifications

Parameter Name	Parameter Value
Product Model	B&R 8MSA2S.R0-K4
Manufacturer	B&R Industrial Automation (ABB Group)
Product Type	Multi-Axis Servo Drive
Axes Capacity	8 axes (independent control)
Continuous Power	2 kW/axis (16 kW total)
Peak Power	6 kW/axis (48 kW total, 100 ms)
Input Voltage	3-phase 400–480V AC ±10%
Communication	EtherCAT P (100 Mbit/s)
Safety Functions	STO, SS1, SOS (SIL 3/PL e)
Feedback	EnDat 2.2, BiSS C, HIPERFACE DSL
Control Loop	≤50 μs (current), ≤100 μs (position)
Protection	Short circuit, overtemp, overload
Operating Temp	0°C to +55°C (derating >40°C)
Dimensions	238 x 74 x 225 mm
Certifications	UL, CE, IEC 61800-5-2

Key Features & Advantages

Integrated Safety Architecture

Hardware-enforced SIL 3 safety functions (STO/SS1/SOS) eliminate external relays while enabling safe motion control strategies like speed limitation and position monitoring.

EtherCAT P Single-Cable Technology

Combines power (600V DC), feedback, and safety signals in one hybrid cable – reduces cabinet space by 40% and eliminates signal integrity issues.

8MSA2S.R0-K4

Dynamic Braking Energy Reuse

Regenerative DC link shares deceleration energy between axes, cutting energy consumption by 30% in high-cycle applications like pick-and-place robots.

Deterministic Performance

≤1 μs axis synchronization via distributed clocks enables precision multi-axis coordination for gantry systems and electronic cams.

Centralized Diagnostics

Integrated web server provides real-time health monitoring of all axes (temperature, current, error logs) via B&R’s Automation Studio.

Application Areas

Robotic Cells: Coordinated control of delta robot arms with ≤5ms cycle times
Packaging Lines: Synchronized servo-driven conveyors and cutters with flying saw functions
Machine Tools: Multi-axis spindle and feed control with electronic gearing
Printing Presses: Register control with automatic compensation for web stretch
Semiconductor Handling: Wafer transfer robots with nanometer positioning
Assembly Automation: Force-controlled screwdriving with torque-angle profiling