Products Description
ABB GJR5253100R0272 07KT98 Advant Controller Unit

Module Feature
GJR5253100R0272 is ABB 07KT98 Advant Controller 31 basic unit.
It is a compact programmable logic controller for marine gensets and general industrial automation. Equipped with built-in Ethernet port, it supports AC1131 programming standard, data interaction with I/O modules and upper monitoring system. It has reliable operation performance and is widely stocked as spare part for power and marine control cabinet.
Working principle
The controller executes user control program cyclically, reads field I/O signal status.
It outputs control commands according to logic algorithm, and uploads running data via Ethernet. It supports interlock, sequence control and protection logic, and stores fault and event records inside non-volatile memory.
Onboard components
Main processing unit, program memory, Ethernet communication chip, status indicator circuit, backplane bus connector and metal housing.
LED indicators
Front LEDs indicate power, run, fault and network communication status.
Hardware self‑diagnosis
Internal circuit monitors power supply, program runtime, bus connection and network channel health. Configuration and programming are completed by ABB engineering software.
Programming software
ABB Control Builder AC31, used for logic programming, parameter setup and online diagnosis.
Electrical & Process Parameters
Model: GJR5253100R0272 Brand: ABB Device type: AC31 PLC controller Function: Logic control, signal acquisition and industrial network communication
Mechanical & Structure
Mounting: DIN rail mounting inside control cabinet Protection class: IP20 Housing: Die-cast metal and plastic assembly
Environmental
Operating temperature: 0℃ ~ +60℃ Storage temperature: -40℃ ~ +85℃ Ambient humidity: 5~95% non‑condensing
Certification: CE Status: Original ABB automation spare
Installation
Cut off 24V DC power before replacement.
Mount unit on DIN rail, connect backplane bus and Ethernet cable, download control program, test logic operation and network communication after commissioning.
Interface
Ethernet communication port, backplane bus connector, 24V DC power terminal.
Diagnostic
No network link: Cable damage, IP address conflict. Controller fault: Program error or memory failure. Run stop: External stop signal or watchdog trigger.
Product Brief
GJR5253100R0272 controller, ABB 07KT98 Advant Controller 31 PLC unit spare for marine genset and industrial automation cabinet replacement.