WOODWARD 8840-1884 Generator Set Controller

Description

WOODWARD 8840-1884 Generator Set Controller

Product Overview

The Woodward 8840-1884 (official catalog P/N 8440-1884, model easYgen-2500-5/P1) is an all-in-one, microprocessor-based generator set (genset) controller from the easYgen-2000 Series. It combines engine start/stop automation, electrical parameter metering, comprehensive protection, synchronization, and real/reactive load sharing into a single panel-mounted module.

It features a built-in graphical LCD screen with soft keys for on-site configuration and monitoring, while also supporting PC-based setup, live diagnostics, and event-log retrieval via Woodward ToolKit software.

Technical Specifications

• 11 configurable relay outputs | | Analog I/O | • 4 FlexIn™ analog inputs (for oil pressure, coolant temp, etc.)

• 4 configurable analog outputs (±10 V / ±20 mA / PWM for governor & AVR) | | Communication Ports | • Dual CAN bus (load sharing & SAE J1939 ECU communication)

• RS-485 (Modbus RTU for PLC/SCADA integration)

• Service port for Woodward ToolKit software | | Operating Temperature | -20 °C to +70 °C (Storage: -30 °C to +80 °C) | | Humidity Rating | Up to 95% relative humidity, non-condensing | | Ingress Protection | IP65 (front panel when properly mounted) | | Weight | Approx. 1.1 kg to 1.5 kg |

Key Advantages

• All-in-One Control Integration: Consolidates engine control, electrical metering, breaker synchronization, and protective relaying into one compact device, reducing cabinet wiring and component count.
• Multi-Unit Load Sharing: Built-in high-speed CAN communication enables automatic island-mode paralleling and dynamic active/reactive load sharing across up to 16 generator sets.
• Broad Engine & AVR Compatibility: Configurable analog outputs (±10 V, ±20 mA, PWM) and native J1939 CAN support allow seamless interfacing with both electronic ECUs and traditional mechanical/analog governors and voltage regulators.
• Fast Troubleshooting & Event Logging: Features a battery-backed real-time clock (RTC) capable of storing up to 300 time-stamped event and alarm records for rapid root-cause analysis.
• Rugged Industrial Build: Engineered with wide DC voltage tolerance, high electromagnetic interference (EMI) immunity, and an IP65 front bezel for harsh generator room environments.

Important Installation & Usage Precautions

• Part Number & Revision Verification: When ordering replacements, confirm both the part number (8440-1884 / 8840-1884) and the hardware/firmware revision letter (e.g., Rev A, J, K, or P1 package) to ensure exact terminal pinout and logic compatibility.
• CT Input Rating: This specific variant is built for 5 A secondary current transformers (CTs). Do not connect 1 A CTs without verifying hardware compatibility, and never open-circuit a live CT secondary loop.
• Shielded Cabling & Grounding: Use shielded twisted-pair cables for analog sensor lines (MPU, oil/temperature senders) and communication buses (CAN and RS-485), terminating shields at a single ground point to prevent signal noise.
• DC Power Cranking Drops: While rated down to 9 V DC, ensure battery cabling is properly sized so starter-motor cranking voltage dips do not reset the controller during engine start.
• Back-Panel Clearance & Sealing: Ensure the panel gasket is properly seated to maintain the IP65 front rating, and install the unit inside an enclosed control panel since the rear terminals are exposed.

Applications

• Multi-Generator Paralleling Plants: Primary control and load-sharing unit for islanded power stations in mining, oil & gas, and remote industrial sites.
• Mission-Critical Backup Power: Emergency standby generator automation and mains-failure transfer for data centers, hospitals, and commercial facilities.
• Marine & Offshore Power Systems: Auxiliary and main shipboard generator synchronization, load sharing, and shore-power transfer.
• Combined Heat & Power (CHP) / Distributed Energy: Gas, biogas, and diesel genset packages requiring SCADA integration via Modbus RTU and precise real/reactive power control.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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