Description
Auxiliary supply: 24 V DC, support 9‑36 V DC wide‑range input
Power consumption: ≤22 W
Binary I/O: Multi‑channel electrically‑isolated digital input, relay output channels for cabinet status acquisition and hard‑wired signal output
Communication interfaces: AC800PEC internal back‑plane bus, auxiliary serial communication interface
Mounting mode: Rack plug‑in module for excitation cabinet AC800PEC rack
Operating temperature: ‑10 ℃ ~ +70 ℃
Storage temperature: ‑40 ℃ ~ +85 ℃
Humidity: 5‑95 %RH non‑condensing
EMC compliance: IEC 61000‑4 series industrial electromagnetic compatibility standards
Dimension & weight: approx. 373 × 73.5 × 142 mm, weight about 0.98 kgABB Group
Certifications: CE approval
Collect massive auxiliary status signals of excitation cabinet: circuit‑breaker auxiliary contacts, cabinet door interlock, cooling fan status, cooling‑water flow, temperature switch and other field binary signals.
Output isolated relay contact signals for excitation fault alarm, system trip, external interlock linkage signal transmission to hard‑wired loop.
Transmit collected field I/O status data to main control board through rack back‑plane bus, receive control command issued by main controller.
Provide auxiliary serial communication channel for local debugging and peripheral equipment connection.
Front‑panel LED indicator displays channel working status and fault information.
Built‑in hardware self‑diagnosis function, detect channel abnormality and circuit fault, report fault code to main control board.
Configuration and parameter setting are completed by UNITROL Configurator and Control Builder M engineering software.
Plug‑in installation inside AC800PEC rack of excitation cabinet. High‑power power cables and weak‑signal wiring shall be separated, ensure reliable cabinet grounding. Auxiliary 24 V DC power supply must keep within rated working range. After board replacement, confirm hardware version matches original project configuration, download complete excitation configuration file. Complete binary‑I/O point‑to‑point test, interlock‑loop verification and back‑plane bus communication inspection. This board must work with main control board and cannot be used alone. Confirm no hardware self‑diagnosis fault alarm before putting into operation.
Expansion I/O auxiliary board for UNITROL6000/6800 static excitation system of medium‑large synchronous generators in thermal‑power plants, hydropower plants and nuclear‑power plants, applied for on‑site maintenance and spare‑part replacement of excitation cabinets.
- Special extended I/O board for AC800PEC excitation platform, provides abundant isolated binary input‑output resources.
- Relay output channel with electrical isolation, guarantee the reliability of hard‑wired alarm and trip signal loop.
- Realize high‑speed data interaction with main control board by rack back‑plane bus.
- Front‑panel LED status indication, convenient for on‑site fault checking.
- Rack plug‑in mechanical structure, easy for on‑site replacement and maintenance; pay attention to hardware version matching during replacement.
- Common maintenance spare‑part for ABB UNITROL6000/6800 excitation systems.
Reviews
There are no reviews yet.