Model Interpretation

8440: General part number prefix of easYgen-3500 series genset controller;

2145: Version P2 specification, 24VDC wide-range power supply, complete standard DI/DO/AI/AO onboard I/O, full-function paralleling & load-sharing firmware, built-in J1939/CAN bus interface for engine ECU communication.

Technical Specifications

Electrical Parameters

Power Supply: DC8~40V (rated 24VDC, typical working current ≤1.8A)

Operating Temp: -25℃ ~ +70℃; Storage Temp: -40℃ ~ +85℃, Humidity 5%~95%RH non-condensing

Overall Dimension:282×217×99mm, Net Weight≈1.88kg, panel flush embedded installation

Protection Grade: Front panel IP54, rear wiring terminal IP20

Certification: CE, UL/cUL, ABS, Lloyd’s marine certification

Onboard IO Configuration

Analog Input: Multi-channel AC voltage/current True RMS sampling, 4–20mA process analog collection, engine temperature/pressure AI access

Analog Output: 4-channel programmable 4–20mA remote transmission output

Discrete Input DI: Multi-path digital interlock input for emergency stop, auxiliary contact, fault signal

Relay Output DO: Multi-group SPDT relay dry contact for trip, alarm, breaker close/open control

Interface and Communication Configuration

Front Panel: LCD graphic display + membrane operation keypad, local parameter browsing, real-time running data check, fault code inquiry, screen brightness/contrast adjustable via panel button shortcut;

Rear Terminal Block: Screw fixed terminal row for generator PT/CT wiring, engine sensor signal, DI/DO/AI/AO hard wiring;

Communication: Standard Modbus RTU RS485, CANopen & J1939 bus, supports connection with DCS/SCADA upper monitoring system, remote parameter modification, fault alarm upload; matches external RP-3500 remote operation panel via dedicated bus.

Core Function

Full automatic genset control: Auto startup/shutdown, speed/frequency closed-loop regulation, smooth mains synchronization, active/reactive kW/kVar equal load sharing among multiple parallel gensets (max 32 units networking control).

Complete multi-layer protection logic: Over/under voltage, over/under frequency, reverse power, overcurrent, short-circuit, engine overspeed, high temp/low oil pressure trip protection with programmable threshold.

Built-in LogicsManager custom logic editor, freely compile interlock control logic without extra PLC; real-time running data & fault event historical recording function.

Dual working mode switchable: Isolated island grid operation and utility grid parallel peak shaving mode, adaptive for various on-site power supply demands.

Applicable Scenarios

Chemical factory self-owned power station multi-unit genset, waste heat gas turbine generator control system, marine genset parallel cabinet, peak-shaving backup power plant, data center emergency standby power unit, biogas generator set synchronization control.

Operation and Maintenance Instructions

Install away from inverter, high-power contactor and strong electromagnetic interference source; prevent dust, moisture and corrosive gas entering cabinet.

Periodically inspect and fasten rear wiring terminals, avoid loose CT/PT wiring causing sampling deviation and abnormal paralleling action.

Replacement spare part must adopt original 8440-2145; download backup configuration parameters via ToolKit software after replacement before commissioning startup.

Abnormal synchronization/load unbalance fault: firstly check PT/CT secondary wiring and engine ECU CAN bus connection; call up historical fault record on controller screen to locate fault source.