Part Number Full ID: OP2446-001, OEM drawing code 640-1017, hardware revision REV01
Core Definition: A070 safety-related Master Processing Unit (MPU) main control board, the central logic hub of the UPS system
Controlled UPS Series Compatibility (Official): PEW, PDW, WEW, WDW nuclear-grade industrial UPS, PXP high-frequency industrial UPS
Core Official Functions (From NRC Document):
Full rectifier, inverter, static switch (EN/EA) closed-loop control
Real-time voltage/current/temperature measurement & fault alarm logging
Front panel HMI communication, parallel system interlock logic
Battery charge/discharge management, UPS mode automatic switching
Lifecycle Status: EOL Obsolete, official supersession replacement part: OP3895AC
Application Scope: Nuclear power plant Class 1E safety UPS, petrochemical, thermal power DCS critical power supply
Defect Record (Official NRC File): PLCC MPU socket contact degradation risk may trigger unplanned UPS inverter shutdown without independent static bypass (ISBS) backup.
GUTOR OP6285A
Official Article Title
OP6285A SDC System Distribution Control Main PCB for Gutor SDC DC UPS Series
Official Brief Description
Advanced digital main processor assembly dedicated to Gutor SDC series industrial DC uninterruptible power systems, integrated battery management & system parallel control logic.
Official Detailed Information
Series Affiliation: OP Operation Processor Control Board Series
Matching UPS Platform: SDC DC industrial UPS, nuclear auxiliary DC power supply
Official Functions: DC rectifier regulation, battery monitoring system (BMS), multi-unit parallel current sharing, DC ground fault detection, remote Modbus TCP/IP communication
Hardware Feature: Conformal coated PCB for harsh industrial environment, wide -20℃~+70℃ operating temperature range
Compatibility: Matches OP6281A auxiliary interface board as a complete control set
3. GUTOR OP6281A
Official Article Title
OP6281A Auxiliary Interface Control PCB for SDC UPS OP6285A Main Processor Board
Official Brief Description
Peripheral signal acquisition & extension interface board paired with OP6285A main controller, part of SDC DC UPS OP control system suite.
Official Detailed Information
Series Affiliation: OP Series auxiliary signal processing sub-board
Matching Main Board: OP6285A (SDC main control)
Official Functions: Analog signal sampling, auxiliary relay output expansion, external fault dry contact signal conversion, fan & heater logic control
Application: SDC 110/220/400VDC nuclear-grade DC UPS system signal front-end processing
