Product Introduction
The Woodward 8440-1934 is a highly versatile industrial automation module designed for genset control and protection. Part of the easYgen-2500 series, this operator interface and breaker control unit features a color LCD display and front panel mounting. It delivers reliable performance for power generation applications, from emergency standby to complex parallel operation with up to 32 gensets. By standardizing on the 8440-1934, users reduce inventory costs and simplify training, achieving a strong return on investment.
Technical Specifications
The 8440-1934 operates on a 12/24 V DC power supply with a maximum consumption of 19 W. Key specifications include:
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Power Supply: 12/24 V DC (8 to 40 VDC) – max. 17 W per description_full
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Display: Color LCD, front panel mounted
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Discrete I/O: 32 inputs / 32 outputs (external)
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Analog I/O: 16 inputs / 4 outputs (external)
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Ambient Temperature: Storage -30 to 80°C; Operation -20 to 70°C
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Humidity: 95% non-condensing
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AC Voltage Input: 120 VAC and 480 VAC true RMS, Class 1 accuracy
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AC Current Input: 1 A or 5 A true RMS, isolated, Class 1
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Discrete Inputs: 12/24 VDC (8 to 40 VDC), isolated
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Relay Outputs: Dry contacts, resistive load 2 A at 24 VDC / 250 VAC
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Analog Inputs: 0 to 500 ohms, 0 to 20 mA
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Analog Outputs (isolated): ±10 V / ±20 mA / PWM
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Communication: CAN open, J1939, Modbus RTU, modem support
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Mounting: Front panel (plastic housing) or back panel (sheet metal housing)
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Sealing: IP66 front / IP20 back
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Weight: Approx. 1,850 g (plastic) / 2,150 g (sheet metal)
Industry Applications
The 8440-1934 excels in multiple power generation scenarios. Common applications include emergency standby systems, cogeneration plants, marine ship/shore power transfer, island prime power, and utility paralleling with peak shaving or import/export control. Its true RMS sensing and LogicsManager™ enable precise protection and metering, reducing downtime and operational costs.
Installation & Setup Guidance
Choose between front panel mounting (plastic housing, 282×217×99 mm) for operator access or back panel mounting (sheet metal, 250×228×84 mm) for harsh environments. Ensure the unit is installed in a location meeting the ambient temperature range (-20 to 70°C) and humidity limits (95%, non-condensing). Connect AC voltage and current inputs per the120 VAC/480 VAC and 1/5 A channels. Isolated discrete inputs accept 12/24 VDC range (8 to 40 VDC). For analog inputs, use 0-500 ohm or 0-20 mA signals. Follow the wiring diagrams for relay outputs (dry contacts) and analog outputs (±10 V / ±20 mA / PWM).
Compatibility & Integration
The Woodward 8440-1934 integrates with engine ECUs, SCADA systems, external I/O, and the RP-3000 remote panel. It supports CAN open, J1939, Modbus RTU, and modem communication. The unit can load-share up to 32 gensets in island mode or when paralleled to the utility. This broad compatibility simplifies system integration and reduces engineering effort.
Selection Guide & Purchasing Advice
Before purchasing the Woodward 8440-1934, verify the required housing type (front panel plastic or back panel sheet metal) and ensure your power supply matches 12/24 V DC with adequate capacity. Confirm the number of discrete and analog I/O needed (up to 32/32 digital and 16/4 analog). For a reliable source, choose PLC Source PRO (formerly ubest101) for genuine Woodward parts and fast delivery. Our team can help you select the right version for your genset control project.