Main Features
The Woodward MFR 1 is designed to provide accurate electrical monitoring and dependable protection for marine generator systems. Key features include:
- Multifunction digital generator monitoring
- Voltage, current, frequency, and power measurement
- Generator protection and alarm functions
- LCD reversible display for easy viewing
- User-friendly programmable interface
- High-accuracy electrical measurement
- Compatible with marine Power Management Systems (PMS)
- Event and alarm indication
- DIN panel mounting design
- Reliable operation in harsh marine environments
- Long service life with minimal maintenance
The Woodward LR20025 Measuring Module works alongside the MFR 1 by processing CT and voltage inputs, ensuring precise monitoring and dependable generator protection.
Marine Applications
The Woodward MFR 1 and LR20025 are widely installed in:
- Marine Diesel Generator Sets
- Auxiliary Generator Panels
- Main Switchboards
- Generator Synchronizing Systems
- Power Management Systems (PMS)
- Marine Automation Systems
- Emergency Generator Systems
- Electrical Distribution Panels
- Engine Control Rooms
- Generator Protection Cabinets
Common vessel types include:
- Container Ships
- Bulk Carriers
- Oil & Chemical Tankers
- LNG & LPG Carriers
- Offshore Support Vessels
- Passenger Ships
- Ro-Ro Vessels
- Naval Ships
- Research Vessels
SM MARINE SERVICE™ supplies replacement Woodward monitoring equipment for ships operating worldwide.
Common Problems & Troubleshooting
| Problem |
Possible Cause |
Recommended Solution |
| Blank display |
Power supply failure |
Check auxiliary supply voltage and wiring |
| Incorrect voltage reading |
CT/PT wiring error |
Verify transformer connections and configuration |
| Frequency alarm |
Generator speed instability |
Inspect governor and engine speed control |
| Communication failure |
Loose terminal or damaged cable |
Check communication wiring and connectors |
| Alarm relay not operating |
Output relay fault |
Test relay contacts and replace if necessary |
| Measurement error |
Incorrect parameter settings |
Reconfigure system according to the manual |
| Display frozen |
Internal electronic fault |
Restart the unit or perform diagnostics |
| No response after power-up |
Module failure |
Test LR20025 measuring module and replace if required |
Maintenance Tips
To maximize operational reliability:
- Inspect terminal connections regularly.
- Verify CT and PT wiring.
- Clean dust from ventilation openings.
- Test protection functions periodically.
- Check alarm outputs during maintenance.
- Keep software parameters backed up.
- Inspect connectors for corrosion.
- Replace damaged wiring immediately.
- Perform functional testing during scheduled maintenance.
Routine inspection significantly extends the service life of generator monitoring equipment.
Why Ships Still Use Woodward MFR 1
The Woodward MFR 1 remains a preferred generator monitoring solution because of its:
- Proven marine reliability
- Accurate electrical measurements
- Stable long-term performance
- Easy programming
- Excellent compatibility with existing PMS systems
- Fast protection response
- Worldwide spare parts availability
- Low maintenance requirements
Many vessels continue operating these systems successfully for years by replacing only defective display units or measuring modules instead of upgrading the complete PMS.
SM MARINE SERVICE™ provides tested replacement units, repair services, technical support, and genuine spare parts to help customers maintain their existing Woodward systems efficiently.
Frequently Asked Questions (FAQ)
What is the Woodward MFR 1?
It is a multifunction digital generator monitoring relay used for electrical measurement, alarm handling, and protection in marine power management systems.
What is the Woodward LR20025?
The LR20025 is the measuring module that interfaces with CT and voltage inputs and supplies accurate measurement data to the MFR 1.
Can the MFR 1 be repaired?
Yes. Many display, power supply, communication, and electronic faults can be repaired following professional diagnosis.
Is calibration required?
Periodic testing and verification are recommended during vessel maintenance to ensure measurement accuracy.
Does SM MARINE SERVICE™ supply this equipment?
Yes. We supply new, reconditioned, and fully tested Woodward MFR 1 displays, LR20025 measuring modules, spare parts, repair services, and worldwide shipping.
Spare Parts Available
SM MARINE SERVICE™ can supply:
- Woodward MFR 1 Display Unit
- Woodward LR20025 Measuring Module
- Generator Monitoring Modules
- Protection Relay Modules
- LCD Display Assemblies
- Communication Boards
- Interface Modules
- Power Supply Boards
- Terminal Connectors
- Electronic PCB Assemblies
- Generator Control Spare Parts
- Marine PMS Components
Short Product Description
The Woodward MFR 1 Multifunction Generator Monitor and LR20025 Measuring Module provide reliable monitoring, measurement, alarm, and protection for marine diesel generators. Designed for use in shipboard power management systems, they ensure safe electrical operation, accurate generator supervision, and dependable long-term performance in demanding marine environments.
User Manual & Technical Resources
For installation, wiring diagrams, CT/PT configuration, parameter settings, alarm programming, troubleshooting, calibration, and maintenance procedures, engineers should consult the official Woodward MFR 1 User Manual, Woodward LR20025 Technical Documentation, and the vessel's Power Management System (PMS) Manual.
SM MARINE SERVICE™
Global Marine Automation & Generator Control Specialist
We Supply:
- New Marine Equipment
- Reconditioned Marine Equipment
- Genuine Marine Spare Parts
- Repair & Calibration Services
- Technical Support
- Worldwide Shipping
Products & Services
- Woodward Generator Controllers
- Woodward MFR Series
- Woodward Measuring Modules
- Generator Protection Relays
- Power Management Systems (PMS)
- Generator Synchronizing Equipment
- Marine Automation Systems
- Electrical Control Modules
- PCB Repair & Functional Testing
- Obsolete Marine Spare Parts
Bangladesh Office
Samir Market, DT Road, Beside CDA Market, Pahartali, Chattogram, Bangladesh
China Warehouse & Support Center
Shanghai, China
Website
https://www.smmarineservice.com
Email: info@smmarineservice.com
WhatsApp: +8801818929292
Marketing Contact: Nazmul Hasan Bhuiyan
SM MARINE SERVICE™ specializes in supplying Woodward MFR 1, Woodward LR20025, Woodward generator monitoring systems, multifunction relays, generator protection modules, PMS spare parts, synchronization equipment, marine electrical automation systems, repair services, calibration, troubleshooting, obsolete spare parts, and worldwide technical support for ship owners, ship management companies, shipyards, offshore operators, and marine engineers worldwide.
