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B&R 3AM051.6 Servo Motor

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B&R 3AM051.6 Servo Motor
May 27, 2026

B&R 3AM051.6 Servo Motor

The 3AM051.6 is a high‑density analog mixed module from the B&R SYSTEM 2005 series, often mistakenly associated with servo systems due to its control‑oriented design. It integrates 4 analog inputs and 4 analog outputs for 0–20 mA DC signals with 12‑bit resolution, serving as a critical interface between servo drive controllers and field sensors/actuators. Built in a single‑slot compact form factor, it features 2500 VAC galvanic isolation, ensuring reliable signal transmission in electrically noisy industrial environments. As a key I/O component for the SYSTEM 2005 platform, it enables precise analog signal conversion for servo system monitoring and auxiliary control tasks.

Description

B&R 3AM051.6 Servo Motor（Note: 3AM051.6 is actually an analog mixed module, not a servo motor）

Product Introduction

The 3AM051.6 is a high‑density analog mixed module from the B&R SYSTEM 2005 series, often mistakenly associated with servo systems due to its control‑oriented design. It integrates 4 analog inputs and 4 analog outputs for 0–20 mA DC signals with 12‑bit resolution, serving as a critical interface between servo drive controllers and field sensors/actuators. Built in a single‑slot compact form factor, it features 2500 VAC galvanic isolation, ensuring reliable signal transmission in electrically noisy industrial environments. As a key I/O component for the SYSTEM 2005 platform, it enables precise analog signal conversion for servo system monitoring and auxiliary control tasks.

Basic Information

  • Model: 3AM051.6

  • Brand: B&R (Bernecker + Rainer, ABB Group)

  • Series: SYSTEM 2005

  • Product Type: Analog Mixed Input/Output Module (for Servo System Auxiliary Control)

  • Input Channels: 4 differential channels, 0–20 mA DC

  • Output Channels: 4 channels, 0–20 mA DC

  • Resolution: 12‑bit for inputs and outputs

  • Power Supply: 5 VDC from backplane (1.5 W); 24 VDC for field (5.0 W)

  • Total Power Consumption: 6.5 W

  • Protection Class: IP20

  • Operating Temperature: 0 °C to +60 °C

  • Storage Temperature: -25 °C to +70 °C

  • Relative Humidity: 5% to 95%, non‑condensing

  • Isolation Voltage: 2500 VAC (field to backplane)

  • Certifications: CE, cULus, EAC, UKCA, Germanischer Lloyd (GL)

  • Installation: Standard single slot for SYSTEM 2005 racks

  • Compatible Terminal Block: TB170 (sold separately)

Function and Positioning

The 3AM051.6 functions as a dedicated analog signal interface for B&R servo drive systems and SYSTEM 2005 controllers, acting as a bridge between servo control units and 0–20 mA field devices. It converts analog current signals from servo‑related sensors (e.g., pressure, tension, and speed transmitters) into high‑resolution digital values for real‑time servo system monitoring and closed‑loop control. Simultaneously, it converts digital control commands from the PLC into 0–20 mA output signals to regulate auxiliary actuators in servo systems, such as proportional valves and frequency converters. By integrating input and output channels, it reduces hardware complexity, simplifies wiring, and optimizes system costs, serving as a versatile auxiliary component for servo‑based motion control applications.

Core Performance Parameters

  • Channel Configuration: 4 differential analog inputs, 4 analog outputs (0–20 mA)

  • Conversion Time: <1 ms for all channels; <1.5 ms with signal averaging

  • Basic Accuracy: ±0.1% full scale at 25 °C (inputs); ±0.15% full scale (outputs)

  • Temperature Drift: ±50 ppm/°C

  • Input Load: 50 Ω per channel

  • Isolation Voltage: 2500 VAC (field to backplane)

  • Output Protection: Short‑circuit resistant

  • Operating Modes: Cyclic sampling, signal averaging, software‑configurable timing (2 ms to 65.535 ms)

  • Status Indicators: Onboard LEDs for module status and channel activity

  • Diagnosis: Full fault diagnosis via B&R Automation Studio

  • EMC Compliance: EN 61000‑6‑2, EN 61000‑6‑4

  • Configuration: Parameterization via B&R Automation Studio V4.x and above

General Compatible Accessories

  • B&R SYSTEM 2005 series backplanes and multi‑slot expansion racks

  • SYSTEM 2005 series CPU modules and communication interface modules

  • B&R ACOPOS servo drive series and related motion control components

  • 24 VDC industrial power supplies (e.g., 0PS105.1, 0PS205.1)

  • Shielded twisted‑pair cables for 0–20 mA signal transmission

  • TB170 terminal block for reliable field wiring connection

  • B&R Automation Studio V4.x+ for programming, configuration, and maintenance

  • 0–20 mA compatible sensors for servo system monitoring (pressure, tension, speed)

  • 0–20 mA controlled auxiliary actuators (proportional valves, frequency converters)

Applicable Equipment Fields

  • Motion Control: Servo drive systems, positioning systems, multi‑axis motion control applications

  • Factory Automation: Packaging machinery, machine tools, automotive assembly lines, robotics

  • Process Industry: Chemical, pharmaceutical, food and beverage, water treatment systems requiring servo‑assisted process control

  • Energy Sector: Power plant auxiliary control, renewable energy systems with servo‑regulated components

  • Industrial Sites: Production environments with high electromagnetic interference and vibration, requiring stable servo system auxiliary control

  • All B&R SYSTEM 2005‑based automation projects integrating servo motion control and 0–20 mA analog signal processing


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