Woodward 8440-1956 easYgen-3400-P1 | Gen Controller 0.5-99,999kW

• Woodward 8440-1956 belongs to the easYgen-3000 series.
• It is an easYgen-3400-1-P1 model. Smaller than P2 versions.
• This unit handles complex breaker applications and engine-generator control.
• Use it to monitor generator voltage (delta or wye configurations).
• The device comes in a metal frame. Handle with care during installation.

Technical Specifications (Tree View)

• ▹ Manufacturer: Woodward
• ▹ Model & Part Number: 8440-1956 / easYgen-3400-1-P1
• ▹ Series: easYgen-3000
• ▹ Accuracy Class: 0.5
• ▹ Setting Range: 0.5 to 99,999.9 kW / kvar
• ▹ Weight: approx. 1,850 g (4 lbs)
• ▹ Contact Material: AgCdO
• ▹ Ambient Humidity: 95% non-condensing
• ▹ Current Transformer Input: 1 A CT input
• ▹ Languages supported:
  • English, German, Spanish, French, Italian, Portuguese, Japanese
  • Chinese, Russian, Turkish, Polish, Slovakian, Finnish, Swedish

Key Features & Alarm System

• Generator voltage monitoring – choose delta (phase-phase) or wye (phase-neutral).
• For isolated or compensation networks, use wye mode to prevent earth faults.
• Six alarm classes: A, B, C, D, E, F. Assign a limit to each class.
• Each alarm class defines actions when reaching or passing the set limit.
• Perfect for engine-generator control and complex breaker logic.

Installation Guide – Read Carefully

• The metal frame can dent easily. Inspect for damage after unpacking.
• Mount the controller inside a dry, clean panel. Keep humidity below 95%.
• Connect 1 A CT inputs for current measurement. Use proper wiring for voltage sensing.
• Set voltage mode (delta/wye) based on your generator configuration.
• For isolated networks, always select wye mode. This avoids unwanted trips.

Easy Debug & Maintenance

• Multi-language display – pick from 13 languages for local operation.
• Alarm classes help you find issues fast. Each class has clear limits.
• Check generator voltage readings directly on screen.
• Use Woodward PC software for advanced diagnostics and log viewing.
• No special tools needed for basic setup.

Compatibility

• Works with any generator set using 1 A CTs and voltage transformers.
• Part of easYgen-3000 family – shares accessories with other P1 models.
• Can integrate with PLC systems including Modicon Quantum via Modbus.
• Replaces older Woodward generator controllers directly.

Certifications & Standards

• Accuracy Class 0.5 – meets IEC/EN standards for power metering.
• Humidity tested: 95% non-condensing – reliable for indoor panels.
• CE marked for European market. RoHS compliant.
• Contact material AgCdO ensures long life for relays.

Package Contents & Warranty

• 12 months warranty from invoice date. Covers defects.
• Package includes: 1 x 8440-1956 controller, quick start guide (digital).
• No cables or CTs included – order separately.
• Return policy: defective units replaced under warranty.

Shipping – Fast & Reliable

• We ship worldwide with FedEx, UPS, DHL.
• Tracking number provided within 24 hours. Insurance included.
• Express delivery: 3-7 business days typical.

Typical Applications

• Diesel or gas generator control in standby power systems.
• Complex breaker synchronization for parallel generators.
• Industrial cogeneration plants.
• Marine and offshore generator management.

Diagnostic Capability

• Real-time voltage and power readings on display.
• Alarm history log – stores past events for troubleshooting.
• Detects CT wiring errors, voltage loss, or frequency drift.
• Self-diagnostic test at power-up.

Frequently Asked Questions (FAQ)

• Question: What is the difference between P1 and P2 models?

  Answer: P1 is smaller with fewer I/Os. P2 has more connectors and inputs.

• Question: Can I use 8440-1956 for single-phase generators?

  Answer: Yes, configure voltage monitoring as wye (phase-neutral).

• Question: Does this unit support Modbus communication?

  Answer: Yes, it supports Modbus RTU via RS485. Great for PLC integration.

• Question: What happens if the metal frame gets damaged?

  Answer: Do not install it. Damaged frame may cause electrical hazards. Return for replacement.

• Question: How do I set the alarm limits?

  Answer: Use the front panel or Woodward software. Assign values to classes A-F.

Experience-based Q&A (Field Notes)

• Question: My controller trips on voltage fault. What is wrong?

  Answer: Check if you selected wye mode for isolated network. Delta mode causes false trips.

• Question: Can I upgrade firmware on 8440-1956?

  Answer: Yes. Download latest firmware from Woodward. Use serial cable and PC tool.

• Question: The display shows wrong power factor. Why?

  Answer: Verify CT polarity and voltage input wiring. Reversed CT wires cause errors.

Buying Guide – Choose the Right Unit

• Choose 8440-1956 if you need compact generator control for one or two breakers.
• Need more I/Os? Look at easYgen-3400-P2 models instead.
• Check your CT rating – this unit accepts 1 A secondary CTs only.
• For multiple languages, this model supports 13 languages – good for global teams.
• Order a spare unit for critical sites. Lead times vary.
• Contact us for bundle pricing with CTs or communication modules.

Need Help? Contact Us

• Technical support or quote requests:
  +86 158 8020 0923 (WhatsApp)
• Email: sales@plcdcshub.com – fast response within 24h.
• Pre-sales consulting and RMA support available.

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