Description
Hardware & Electrical Specifications
- Model：UNS0867A‑P,V2
- Part Number：HIEE405246R0002
- Module Type：I/O Extension Board
- Bus Interface：Internal dedicated back‑plane bus for excitation system
- Signal Channel：Multi‑channel analog input, binary input / relay output channels
- Power supply：24 V DC (18‑32 V DC)
- Max power consumption：11 W
- Galvanic isolation：≥1500 V AC between field‑signal side and control‑logic side
- Dielectric strength：1500 V AC 1 minute
- Insulation resistance：＞100 MΩ @ 500 V DC
- On‑board protection：ESD protection, signal surge suppression, input signal filtering, conformal coated PCB
- Compatibility note：Cannot run standalone; matches UNITROL‑F / UNITROL1000 excitation rack, must match corresponding firmware version.
Environmental Specifications
- Operating temperature：‑10 ℃ ~ +60 ℃
- Storage temperature：‑40 ℃ ~ +85 ℃
- Relative humidity：5%‑95% non‑condensing
- Installation location：Inside excitation cabinet rack
- EMC compliance：IEC 61000‑6‑2
- Certifications：CE
Mechanical Data
- Installation：Plug‑in rack‑mount eurocard board
- Interfaces：Internal back‑plane connector; external signal terminal connectors
- Recommended wire cross‑section：0.75 mm²‑2.5 mm² copper cable for signal terminals
- Terminal tightening torque：0.6‑1.0 N·m
- Weight：approx 0.80 kg
- Dimension：Standard Euro‑card form‑factor for UNITROL rack
Main Functions
- Expand analog input channels: collect generator temperature, auxiliary voltage/current measurement signals, perform signal conditioning and A/D conversion.
- Acquire multi‑channel binary status signals from cabinet interlock, cooling system and power unit auxiliary devices.
- Relay output for auxiliary alarm and status indication signals.
- Transmit processed field data to main processor via back‑plane bus, receive control commands from main unit.
- Channel self‑diagnosis: detect signal loss, over‑range and circuit fault, report fault codes to excitation system.
- LED status indication:
- Green LED：Power supply normal, board logic healthy
- Yellow LED：I/O channel signal active
- Red LED：Channel fault / board hardware fault
Installation & Wiring Requirements
- Cut off cabinet total power before replacement. Insert UNS0867A‑P,V2 into assigned rack slot and tighten mounting screws. Hot‑swap is strictly forbidden.
- Connect field measuring‑signal and binary I/O cables strictly per wiring drawing; separate high‑power cables and weak‑signal cables to reduce electromagnetic interference.
- Cabinet protective grounding shall comply with ABB UNITROL‑series grounding specification.
- After replacement, confirm firmware compatibility, download project parameters, complete channel signal test and interlock function verification before commissioning.
- Replacement note: Cross‑version substitution needs hardware‑firmware compatibility validation.
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