ABB 3ASC25H705斜杠-7 Analog Input Module

Description

Hardware and Performance Specifications Auxiliary supply: 24 V DC, 18‑30 V DC wide‑range input Power consumption: ≤8 W Input channels: Multi‑channel galvanic‑isolated analog inputs, configurable for ‑10 V ~ +10 V, 4‑20 mA signals Measurement resolution: 12‑bit ADC Isolation voltage: 3000 V AC reinforced isolation between field side and system bus side Signal accuracy: ±0.15 % full‑scale Communication interfaces: Internal rack back‑plane bus Mounting mode: Subrack plug‑in card for Advant controller rack Protection class: IP20 Operating temperature: ‑25 ℃ ~ +70 ℃ Storage temperature: ‑40 ℃ ~ +85 ℃ Humidity: 5‑95 %RH non‑condensing EMC compliance: Comply with IEC 61000‑4 series industrial EMC standards Dimension & weight: 132 × 100 × 35 mm, weight approx. 0.40 kg Certifications: CE approval

Main Functions Receive and condition field analog signals such as pressure, flow and level from transmitters. Complete high‑precision analog‑to‑digital conversion for multi‑channel analog inputs. Upload converted measurement data to main controller through back‑plane bus. Provide over‑voltage and surge protection for field input loops. Front‑panel LED indicators display power‑on status, running status and channel fault alarms for on‑site troubleshooting. Hardware self‑diagnosis detects sensor open‑circuit, signal over‑range and internal circuit faults, upload fault status to main unit. Parameter configuration, channel calibration and diagnosis are completed by ABB Advant engineering software.

Installation Requirement Plug‑in installation inside Advant system subrack. High‑power cables and weak‑signal measuring cables shall be routed separately. Ensure reliable cabinet protective grounding. Auxiliary 24 V DC power supply shall stay within rated operating range. After module replacement, confirm full part‑number 3ASC25H705‑7 strictly matches original project configuration, download complete DCS configuration file. Perform analog‑channel calibration and back‑plane bus communication verification. Different hardware revisions cannot be directly interchanged without configuration adaptation. Do not put into service until no hardware self‑diagnosis fault alarm exists.

Typical Application Scenarios Analog input spare‑part for ABB Advant OCS DCS systems, applied for process‑signal acquisition in thermal‑power plants, hydropower plants, petrochemical and metallurgical industries, used for DCS‑system maintenance and spare‑part replacement.

Key Features

1. Dedicated DASA110 analog input module for ABB Advant OCS platform, reinforced isolation for anti‑interference performance in harsh industrial sites.
2. Multi‑range configurable analog input channels, high‑precision 12‑bit ADC for process‑variable measurement.
3. Plug‑in subrack‑mount structure, convenient for on‑site replacement and maintenance.
4. Comprehensive self‑diagnosis function for sensor breakage and channel‑fault detection.
5. Strict full‑part‑number and hardware‑revision matching shall be observed during spare‑part replacement; suffix‑7 represents hardware revision level.