May 27, 2026

B&R 3AM051.6 Analog Input Module

The 3AM051.6 is a high‑precision analog input module from the B&R SYSTEM 2005 series, designed for current signal acquisition in industrial automation. It provides 4 differential analog inputs for 0–20 mA DC signals with 12‑bit resolution. Built in a single‑slot compact design, it features 2500 VAC galvanic isolation between field circuits and the backplane, ensuring strong immunity to electromagnetic interference. As a core I/O component for the SYSTEM 2005 platform, it delivers reliable and accurate analog‑to‑digital conversion for process monitoring and data logging tasks.

Description

B&R 3AM051.6 Analog Input Module

Product Introduction

Basic Information

Model: 3AM051.6
Brand: B&R (Bernecker + Rainer, ABB Group)
Series: SYSTEM 2005
Product Type: Analog Input Module (Current)
Input Channels: 4 differential channels
Input Range: 0–20 mA DC
Resolution: 12‑bit
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 current‑loop input interface for B&R SYSTEM 2005 controllers, connecting 0–20 mA field sensors to the control system. It converts continuous analog current signals from pressure, flow, temperature, and level transmitters into high‑resolution digital values for real‑time process monitoring, data acquisition, and closed‑loop control. With differential input design, it minimizes common‑mode noise and ensures stable signal capture in electrically noisy environments. As a key part of the SYSTEM 2005 I/O portfolio, it provides cost‑effective and reliable analog input capability for general industrial automation.

Core Performance Parameters

Channel Configuration: 4 differential analog inputs (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
Temperature Drift: ±50 ppm/°C
Input Load: 50 Ω per channel
Isolation Voltage: 2500 VAC (field to backplane)
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
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
SYSTEM 2005 controller memory expansion modules
0–20 mA compatible sensors (pressure, flow, temperature, level)

Applicable Equipment Fields

Factory Automation: Packaging machinery, machine tools, automotive assembly lines, general production equipment
Process Industry: Chemical, pharmaceutical, food and beverage, water treatment, papermaking, oil and gas systems
Energy Sector: Power plant monitoring, renewable energy systems, energy efficiency control
Building Automation: HVAC systems, environmental monitoring, building management systems
Motion Control: Frequency converter monitoring, servo drive feedback interfaces
Industrial Sites: Production environments with high electromagnetic interference and vibration
All B&R SYSTEM 2005‑based automation projects requiring high‑precision 0–20 mA analog input capabilities

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