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The 8405-307 Speed Controller delivers precise engine speed regulation for industrial and power generation applications.
It provides stable governor control for diesel, gas, and turbine-driven prime movers.
Engineers rely on this controller to maintain frequency stability under dynamic load conditions.
Moreover, the unit supports accurate speed trimming during synchronization and load sharing operations.
The 8405-307 model integrates easily into new installations and retrofit generator control panels.
Therefore, operators can improve performance without redesigning existing engine systems.
Its robust electronic architecture ensures consistent control accuracy in harsh industrial environments.
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Model Number | 8405-307 |
| Product Type | Electronic Speed Controller |
| Control Function | Engine speed regulation and governor control |
| Speed Range | Configurable according to engine application |
| Control Mode | Isochronous and droop operation |
| Speed Accuracy | High precision electronic regulation |
| Input Signal | Magnetic pickup or speed sensor input |
| Output Signal | Actuator control output (voltage/current depending on configuration) |
| Load Sharing Compatibility | Compatible with external load share modules |
| Power Supply | Industrial AC/DC supply options depending on version |
| Frequency Application | 50 Hz and 60 Hz generator systems |
| Adjustment Parameters | Gain, stability, droop, ramp rate |
| Mounting Type | Panel-mounted industrial enclosure |
| Operating Temperature | Industrial temperature range suitable for generator rooms |
| Protection Features | Reverse polarity protection and noise immunity design |
| Environmental Resistance | Designed for vibration-prone engine environments |
Q1: What is the main function of the 8405-307 controller?
A: It regulates engine speed to maintain stable generator frequency under varying load conditions.
Q2: Can the controller support parallel generator systems?
A: Yes, it works with external synchronization and load sharing modules for parallel operation.
Q3: Does it support both isochronous and droop control modes?
A: Yes, operators can configure either mode depending on system design requirements.
Q4: What type of speed input does the controller require?
A: It typically uses a magnetic pickup or compatible engine speed sensor.
Q5: Is it suitable for harsh industrial environments?
A: Yes, it is designed for vibration resistance and electrical noise immunity in generator rooms.
At PLC DCS Pro Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.
This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.
To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.
We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.

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