Description
Product Overview
The Woodward 8280-1001 is a 723PLUS digital control unit equipped with dual speed input channels, designed for prime mover speed regulation, generator load sharing and protective control for gas turbines, steam turbines and reciprocating engine generators. It accepts speed feedback signals from magnetic pickups (MPU) or proximity sensors, supporting torsional filtering for mechanical resonance suppression. Integrated analog and discrete I/O handles valve actuation, alarm outputs, breaker control and load management functions. It can work in tandem with Woodward DSLC digital synchronizer units for generator paralleling, soft loading and unloading, and automatic breaker tripping logic. This chassis-mounted controller is widely used in power generation, combined cycle plants and industrial standby generator packages as a drop-in replacement spare.
Technical Specifications
| Parameter | Details |
|---|---|
| Part Number | 8280-1001 |
| Manufacturer | Woodward |
| Product Type | 723PLUS Digital Speed / Load Controller |
| Speed Inputs | 2 independent MPU / proximity sensor speed channels |
| Speed Range | 100–6000 rpm for engines; 2000–30000 rpm for turbines |
| Speed Regulation Accuracy | ±0.01% steady state |
| Analog I/O | Configurable 4–20mA inputs and outputs for valve and process signals |
| Discrete I/O | Digital contact inputs, relay alarm and breaker control outputs |
| Communication | Serial interface for configuration, monitoring and HMI connection |
| Power Supply | 18–32 VDC nominal, 24VDC typical |
| Operating Temperature | -40°C ~ +70°C |
| Storage Temperature | -40°C ~ +85°C |
| Relative Humidity | 5% ~95% non-condensing |
| Enclosure | Metal sheet chassis, PCB conformal coated |
| Mounting | Panel / cabinet chassis mount |
| Approximate Weight | 1.6 kg |
Compliance & Certifications
- CE mark for EMC and Low Voltage Directive
- Designed to IEC power generation control standards
- Factory full functional test, speed loop and load sharing validation before shipment
- RoHS compliant
Storage & Installation Guidelines
Storage Requirements
- Store indoors in dry temperature-controlled warehouse; recommended ambient temperature 10°C ~30°C, RH <70% non-condensing
- Keep in original anti-static packaging before installation
- Protect from heavy shock, continuous vibration, dust and corrosive vapors
- ESD wristband required while opening chassis and handling PCB components
Installation Instructions
- Lock out and tag out all 24VDC control power and prime mover fuel supply before replacement
- Wear ESD protective equipment to prevent electrostatic damage to PCB
- Secure the controller chassis inside control cabinet and fasten mounting hardware
- Wire MPU speed inputs, analog I/O, discrete relay circuits and DC power following Woodward 723PLUS wiring manual
- Verify wiring isolation and noise separation; route MPU speed cables separately from high power wiring
- Apply power, download application configuration and tune speed PID parameters
- Perform speed test, load sharing test and protective trip functional checkout
- Commissioning must be completed by certified turbine / generator control technicians
FAQ
Q: What is the dual speed input function on 8280-1001? A: Two independent speed channels for redundant speed measurement and torsional filtering to avoid resonance-related false speed trips.
Q: Can this unit perform generator paralleling? A: It works together with Woodward DSLC synchronizer for paralleling, load sharing and soft loading; the 723PLUS itself handles speed and load regulation.
Q: What prime movers is this controller used for? A: Gas turbines, small steam turbines and reciprocating gas/diesel generator sets.
Q: Does this controller support torsional filtering? A: Yes, built-in torsional filtering algorithm to suppress mechanical torsional resonance on generator shafts.
Q: What warranty is available? A: Standard 12-month warranty applies for fully tested controllers operated under rated normal operating service conditions.
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