Product Overview
The ABB NETA‑21 (3AUA0000093675) is a dedicated remote monitoring gateway designed for ABB industrial drive systems. It features an embedded web‑server to access drive parameters, real‑time operational data, fault logs and trend graphs via Ethernet network. It supports DDCS fiber‑optic, Modbus RS‑485 and Ethernet‑based multi‑drive networking, allowing connection of up to 32 ABB drives. The SD‑card slot enables local data logging for offline analysis. Widely used as spare replacement for existing ACS800 and ACS880 drive installations for predictive maintenance and remote troubleshooting.
Series
NETA‑21 is ABB’s legacy remote monitoring tool for variable‑speed drives. Working cooperatively with NEXA‑21 extension modules, it expands DDCS fiber‑optic network capacity. This connectivity family delivers drive‑level data acquisition, logging and web‑interface access for legacy ABB drive platforms, serving maintenance and retrofit projects across heavy‑industry sites.
Product Features
‑ Built‑in embedded web server for browser‑based drive monitoring and parameter adjustment ‑ Multi‑interface support: DDCS fiber‑optic, Ethernet TCP/IP, Modbus RS‑485 ‑ Connect up to 32 ABB ACS800 / ACS880 drives in one network ‑ SD/SDHC card slot (max 32 GB) for historical data logging and fault‑event storage ‑ USB 2.0 host port for modem and peripheral expansion ‑ Multiple status LED indicators for power, operation and communication diagnosis ‑ DIN‑rail mounting for standard control cabinet installation ‑ Galvanic isolation on serial communication ports for noise immunity ‑ Remote read‑out of drive runtime statistics, warning and fault history
Product Parameters
‑ Power Supply: 10‑30 V DC ‑ Ethernet: 10/100BASE‑TX, shielded RJ45 ‑ DDCS Fiber‑Optic: 1 Mbit/s, ring / star topology ‑ Serial Interfaces: EIA‑232, galvanically isolated EIA‑485 (Modbus) ‑ Storage: SD/SDHC card slot, maximum 32 GB ‑ USB: USB 2.0 Host Type‑A port ‑ Operating Temperature: 0 °C ~ +55 °C ‑ Storage Temperature: ‑25 °C ~ +70 °C ‑ Relative Humidity: 5‑85 %, non‑condensing ‑ Mounting: DIN‑rail ‑ Protection Class: IP20 ‑ Approvals: CE compliant
Product Specifications
‑ Form Factor: Compact DIN‑rail housing ‑ Maximum Connected Drives: 32 units ‑ Access Method: Standard web browser, no special software required ‑ Data Logging: Cyclic trending, fault‑event recording onto SD‑card ‑ Compatibility: ABB ACS800, ACS880 series variable‑frequency drives ‑ Communication Protocols: DDCS, Modbus RTU, TCP/IP ‑ Weight: Approximately 0.51 kg
Function
NETA‑21 collects real‑time operational values, status bits and fault information from connected ABB drives over fiber‑optic or fieldbus links. It hosts a local web server, so users can view parameters, monitor trends and perform diagnostics via standard web browser. It logs drive runtime data and fault events to SD‑card for offline analysis. It acts as protocol gateway between drive internal DDCS network and upper‑level automation system.
Purpose
Implement remote monitoring, fault diagnosis and historical‑data recording for ABB drive systems. Reduce on‑site inspection workload, accelerate drive fault troubleshooting. Deployed as spare‑part replacement for failed monitoring gateway in existing drive cabinets.
Application Fields
Water‑wastewater treatment, power plants, pulp‑and‑paper mills, metallurgical plants, chemical facilities, mining equipment, HVAC large‑fan & pump drive systems, legacy ABB ACS800 / ACS880 drive maintenance and retrofit projects.
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