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Woodward 8440-1935 – Digital Speed Control Unit

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8440-1935 Woodward EASYGEN-3000 Controller: Configuration Guide

Product Introduction

The Woodward 8440-1935 operates as a genset controller. It manages diesel or gas engine generators. This unit controls speed, voltage, and load. Moreover, the 8440-1935 supports both isochronous and droop modes. You can use it for single units or multiple paralleled sets. Specifically, it includes a backlit LCD display. Many power plants and data centers rely on this controller.

Core Value

This controller increases generator reliability. Firstly, it provides automatic synchronization to the bus. Therefore, you avoid manual paralleling errors. Moreover, the Woodward 8440-1935 includes built-in protective functions. Specifically, it monitors overspeed, overvoltage, and reverse power. Besides, it supports Modbus RTU communication. You can integrate it with a SCADA system easily.

Technical Insights

The Woodward 8440-1935 requires a 12 VDC or 24 VDC supply. It draws approximately 0.5 A during normal operation. Furthermore, this controller accepts magnetic pickup inputs for speed sensing. It also takes PT and CT inputs for voltage and current measurement. Meanwhile, the 8440-1935 provides relay outputs for start/stop control. Use it with Woodward actuators like the 2301 series. The operating temperature ranges from -40°C to +70°C.

Installation & Maintenance

Always disconnect battery power before wiring the Woodward 8440-1935. First, mount the controller on a flat panel. Use M5 screws for secure attachment. Then, connect the magnetic pickup to the speed input terminals. Wire the generator voltage and current signals carefully. Moreover, use shielded cables for all analog inputs. After power-up, enter the configuration menu. Set engine parameters like rated speed and number of cylinders. Test the overspeed shutdown function annually. Clean the front panel with a dry cloth only.

Buyer’s Guide FAQ

1. What systems work with the Woodward 8440-1935?
This controller works with diesel and gas generators. It pairs with Woodward actuators and magnetic pickups.

2. Can the 8440-1935 operate multiple generators in parallel?
Yes. The unit supports up to 16 generators in island mode. It uses load sharing lines for communication.

3. How do I update firmware on the Woodward 8440-1935?
You need Woodward Service Tool software. Connect via the RS-232 port on the front panel.

4. What is the difference between 8440-1935 and 8440-1936?
The 8440-1935 is the standard version. The -1936 includes additional discrete input/output points.

5. Does the Woodward 8440-1935 log event history?
Yes. The controller stores up to 100 events. You can view them through the front panel display.

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