Description
Woodward 9907-014 belongs to the classic 2301A series forward-acting speed & load sharing controller
Product Title & Description
Model: 9907-014 The Woodward 9907-014 belongs to the classic 2301A series forward-acting speed & load sharing controller. It is an analog governor control unit for prime movers, supporting isochronous and droop speed regulation, plus parallel generator load sharing. Widely used for diesel/gas engine gensets, small steam turbines and gas turbines in power plants, marine power systems and industrial backup power stations, it stabilizes speed and balances active power for paralleled generator sets.
Core Product Overview
2301A 9907-014 is a well-proven analog speed governor, the forward acting version of the 2301A family. It receives speed signal from MPU magnetic pickup sensor, compares actual speed with setpoint and outputs drive signal to fuel actuator. It supports two control modes: Isochronous (constant speed for isolated grid) and Droop (for multi-generator parallel load sharing). Front panel potentiometers allow onsite adjustment: start fuel limit, ramp time, actuator compensation, speed setpoint and gain. It also includes over-speed protection logic and loss of speed signal detection. It can work together with Woodward SPM-D11 synchronizer (8440-2165) for complete generator paralleling and load management solution. It is a popular spare for legacy power generation retrofits and maintenance.
WOODWARD 9907-014
Main Technical Specifications
- Manufacturer: Woodward (USA)
- Part Number: 9907-014
- Series: 2301A Forward Acting Speed & Load Sharing Controller
- Power Supply: 10–40 VDC (typical 24 VDC)
- Speed Input: MPU magnetic pickup, 1~30 Vrms
- Actuator Output: 0–200 mA
- Speed Setpoint Input Options: 4–20 mA / 1–5 VDC
- Control Modes: Isochronous / Droop
- Load Sharing: Analog load share line for parallel gensets
- Front Adjustment Pots: Start Fuel Limit, Ramp Time, Actuator Compensation, Gain, Speed
- Mounting: Panel mount, sheet metal enclosure
- Dimension: 8.625 × 7.25 × 2.5 inch
- Weight: ~0.8–1.2 kg
- Operating Temperature: -40°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5% ~95%, non-condensing
- Certifications: UL, CSA
Quality Control Procedures
Woodward governor products comply with ISO9001 and IEC power generation standards.
- Incoming Component Inspection: Operational amplifiers, signal circuits, potentiometers, power components and terminal blocks sourced from approved vendors with full screening.
- Assembly & Serial Traceability: PCB assembly, each unit assigned unique serial number for lifecycle traceability.
- Full Functional Calibration Test: Speed simulation test, actuator output calibration, droop/isochronous mode test, load share line test and loss-of-speed fault test.
- Environmental Stress Screening: Thermal cycling, vibration and EMC surge testing for power cabinet environments.
- Final Inspection & Packing: Visual inspection, anti-static packaging and factory test documentation before shipment.
WOODWARD 9907-014
Brand Related Model Recommendations
- 9907-015: Reverse acting variant of 2301A controller.
- 9905-001: Older 2301A base model without load share function.
- SPM-D11 8440-2165: Woodward synchronizer for genset paralleling, commonly paired with 9907-014.
- 505 / 505E: Digital turbine governor, upgrade replacement for legacy 2301A.
Frequently Asked Questions (FAQ)
Q1: What is 9907-014 used for? A1: It is an analog governor for diesel/gas engines and small turbines, for speed regulation and multi-generator active load sharing.
Q2: What is forward acting? A2: Forward acting means actuator fuel increases when controller output current rises; reverse acting model (9907-015) is the opposite. Must match your actuator type.
Q3: What sensor connects to speed input? A3: Magnetic pickup (MPU) speed sensor mounted on the engine/turbine gear.
Q4: Can it work for island mode generator? A4: Yes, use isochronous mode for standalone island power; droop mode for grid parallel and load sharing.
Q5: What is the warranty for original Woodward 9907-014? A5: Original Woodward controller carries standard 12-month factory warranty against manufacturing defects under proper installation and operating conditions.
Installation & Configuration Guide
7.1 Pre-installation Preparation
Verify 9907-014 controller, check front potentiometers and terminal block for damage. Prepare 24VDC power supply, MPU speed sensor, actuator wiring, shielded analog cables. Isolate generator and lock out prime mover before wiring. Wear ESD protection. Confirm whether actuator requires forward/reverse acting.
7.2 Installation Steps
Mount controller on control cabinet panel. Connect 10–40VDC power terminals. Wire MPU magnetic pickup speed signal input. Wire actuator output to fuel actuator. Connect analog load share wiring if multiple generators run in parallel. Route shielded instrument cables, single-point shield grounding inside cabinet. Tighten all terminals.
7.3 System Configuration & Commissioning
Set front panel potentiometers: start fuel limit, ramp time, actuator compensation and speed gain. Select Isochronous / Droop mode according to application. Perform crank and start test, check acceleration ramp and fuel limit. Run no-load speed calibration. Test load sharing function when paralleled with other generators. Record all potentiometer positions as baseline parameters.
7.4 Maintenance & Precautions
During generator outages, inspect terminal tightness, cable shielding and MPU sensor gap. Keep controller cabinet clean. Do not adjust potentiometers randomly during running. If speed hunting or unstable load sharing appears, first check MPU sensor, actuator and wiring before replacing 9907-014.
Start Chat
Send an Email
