ABB 216NG63A HESG441635R1 HESG216877K Power Supply‑Supervision Module

‑ Power Supply: Auxiliary external DC power input, and powered by REG216 rack back‑plane bus

‑ Power Consumption: ≤ 7 W

‑ Mechanical Structure: 6U Eurocard rack‑mount plug‑in board, metal front panel, back‑plane parallel bus connector

‑ On‑board Resources: Multi‑channel voltage‑monitoring circuit, power‑fail detection logic, fault latch circuit, channel status LED logic, B448C parallel back‑plane bus interface

‑ Communication Interface: Internal B448C parallel back‑plane bus, no external communication port

‑ Galvanic Isolation: Auxiliary supply input is electrically isolated from system internal logic bus

‑ Interfaces: Front‑panel auxiliary‑power wiring connector, back‑plane system bus connector

‑ Status LED Indicators: Power, Run, Module Fault, Supply‑abnormality LEDs

‑ Weight: Approx 0.42 kg

‑ Continuously monitors multiple working supply voltages inside REG216 rack, detects over‑voltage, under‑voltage and power‑drop conditions.

‑ Provides power‑good enabling logic for other plug‑in modules in the rack. Triggers early warning when supply drifts out of permitted range.

‑ Detects power‑fail events, uploads power‑supply status and self‑diagnosis fault information to main CPU for upper‑level HMI monitoring and event logging.

‑ Hardware self‑diagnosis covers auxiliary input abnormality, monitoring‑circuit failure and module internal faults, reports fault status to system CPU.

‑ All threshold parameters are configured by upper‑level system software; no local keypad operation.

‑ Cannot operate independently without REG216 rack back‑plane and CPU unit. Cannot be directly hardware interchanged with other REG216 I/O modules. HESG441635R1 is main module part‑number; HESG216877K denotes hardware variant / kit revision K.

‑ Continuously monitors auxiliary power input, rack internal supply rails and module internal hardware status. Detected faults activate fault LED and send fault word to system CPU.

‑ Front‑panel LEDs indicate real‑time power‑supply and module health status. No local numerical display; all status and fault codes are read from upper‑level HMI workstation.

‑ Module hardware failure results in loss of rack‑wide power‑supply supervision. Protection logic still runs if power remains normal, but power‑supply degradation and early‑fault conditions cannot be captured, bringing hidden risks for generator‑transformer set.

‑ Back‑plane connector: Connect to REG216 B448C parallel back‑plane bus for data exchange with CPU and other plug‑in modules.

‑ Front‑panel field connector: Auxiliary power‑supply signal input.

‑ Mounting: Plug‑in installation inside REG216 system rack

‑ Operating Temperature: 0 °C ~ +60 °C

‑ Storage Temperature: −40 °C ~ +85 °C

‑ Relative Humidity: 5‑95 %RH, non‑condensing

‑ Protection Class: IP20 (inside cabinet)

‑ Power off the whole rack before inserting or removing the module. Auxiliary‑power wiring shall adopt shielded cables with single‑end shield grounding to reduce electromagnetic interference.

‑ For spare‑part replacement: Verify complete part‑number HESG441635R1 and revision identifier HESG216877K. After replacement, confirm back‑plane bus identification, verify multi‑rail voltage‑monitoring and fault‑reporting function.

‑ Module hardware fault disables power‑supply supervision function; protection logic may still operate under normal power conditions.

Generator and main‑transformer protection cabinets in thermal / hydro power plants; ABB REG216 numerical generator‑transformer protection‑control system; industrial spare‑part replacement.