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ABB NASM03 analog slave module

Item NO.:
NASM03
Payment:
T/T
Price:
$1200
Product Origin:
Sweden
Color:
NEW
Lead Time:
In stock

ABB NASM03 Analog Slave Module

ABB NASM03 is a dedicated analog slave module designed for ABB Symphony Plus and AC 800M automation systems. It functions as a distributed signal hub in analog control loops, responsible for collecting field analog signals (e.g., from pressure, temperature, flow sensors) and executing analog control commands from upper-level master controllers (e.g., ABB NAMM03). It excels in long-distance, anti-interference analog signal transmission, making it suitable for large-scale process industries like oil & gas, chemicals, and power generation.

Core Product Features

Dual Analog Signal Handling: Integrates 8 analog input channels (4-20mA/0-10V) and 4 analog output channels (4-20mA), enabling bidirectional data interaction with field devices. It converts weak sensor signals into standardized digital data for the master controller, while translating controller commands into analog drive signals for actuators (e.g., control valves).
High-Isolation Protection: Features 2.5kV AC channel-to-channel isolation and 5kV AC isolation between the module and system bus. This eliminates ground loops and prevents field-side electrical faults (e.g., surge voltages) from damaging the master control system, ensuring signal integrity in harsh industrial environments.
Loop Diagnostics & Redundancy: Built-in fault detection for analog channels (open circuit, short circuit, signal overrange) and module status (power loss, communication failure). Supports redundant loop wiring (ring topology) for critical applications—automatically switches to the standby loop if the main link fails, avoiding control interruption.

Key Parameters

Parameter Category	Specifications
Analog Inputs	8 channels; 4-20mA (input impedance 250Ω) / 0-10V (1MΩ); accuracy ±0.1% of full scale (FS)
Analog Outputs	4 channels; 4-20mA (max load 500Ω); linearity error ≤0.2% FS
Loop Compatibility	Works with ABB proprietary analog loops (e.g., Symphony Plus Loop); supports up to 32 slave modules per master
Transmission Performance	Loop communication rate up to 1Mbps; signal delay ≤5ms; supports redundant ring topology
Power Supply	24V DC (18-30V DC); power consumption ≤5W (full load)
Environmental Adaptability	Operating temperature: -40°C to +70°C; humidity: 5%-95% (non-condensing); protection grade IP20
Mechanical Specs	100mm×80mm×25mm; DIN rail-mounted (35mm standard); connects to loop bus via 15-pin D-sub connector

Core Advantages

Distributed Cost Savings: Installed near field devices (e.g., on-site instrument cabinets), it reduces long-distance analog cable usage (and associated signal attenuation) by converting scattered signals into a unified loop transmission. This cuts wiring costs by 40% in large plants (e.g., oil refineries with scattered sensors).
Enhanced Signal Stability: Built-in low-pass filters (50Hz cutoff) reduce high-frequency noise from motors or inverters, while surge protection (IEC 61000-4-5, ±2kV) withstands field voltage spikes—critical for high-precision applications (e.g., pharmaceutical reactor temperature control).
Seamless ABB Integration: Natively compatible with ABB master controllers and configuration software (Control Builder M). Supports auto-addressing (via DIP switch) and online parameter adjustment, eliminating the need for manual calibration during commissioning.

Typical Applications

Oil & Gas Pipelines: Deployed near wellhead pressure/flow sensors (4-20mA), collects signals and transmits them to the central DCS master. Simultaneously sends valve opening commands (4-20mA) to field control valves, regulating pipeline media flow.
Chemical Reactors: Installed in reactor zones, connects thermocouple signal converters (4-20mA) and pH sensors (0-10V) to the master controller. Executes dosing pump control signals (4-20mA) to maintain reaction parameters within set ranges.
Power Plant Steam Systems: Monitors steam temperature/pressure (4-20mA) via field transmitters and controls steam valve actuators (4-20mA), integrating decentralized data into the central boiler control loop.

Usage Precautions

Loop Wiring: Use shielded twisted-pair cables for the loop bus; terminate loop ends with 120Ω resistors to prevent signal reflection. For redundant ring topology, ensure two independent wiring paths between the master and slave.
Address Configuration: Assign a unique address (1-32) to each NASM03 via DIP switch—duplicate addresses cause loop communication conflicts. Confirm the address matches the master controller’s configuration.
Maintenance: Regularly check loop communication status via the master DCS; clean module terminals annually to prevent oxidation-induced signal loss. Calibrate analog channels every 12 months (using ABB calibration tools) for applications requiring ±0.1% precision.