Woodward 9907-077

Woodward 9907-077 is a 24 V DC power supply module in the NetCon series, belonging to Woodward's "Power Supply" product family. It is mainly used to provide regulated DC power for industrial control systems, electromechanical equipment, and field instruments. This model is marked as "replaces 5437-077" in the 2024 product catalog and is an upgraded version that replaces the old model.

1. Key Technical Specifications

Specification	Typical Value / Range
Input Voltage	18 ~ 32 V DC (accepts wide-range DC power supply)
Output Voltage	24 V DC (single or multiple channels)
Output Current	4 A (single channel) or 4 A × 4 A (multiple channels)
Power	≤ 96 W (depending on output configuration)
Operating Temperature	–40 °C ~ +85 °C
Protection Level	IP20 (for indoor use)
Dimensions / Weight	Approximately 120 mm × 80 mm × 30 mm, approximately 0.2 kg
Interface	Terminal block (bolt-type), compatible with Woodward standard wiring methods
Certifications	CE, UL (depending on region)

2. Product Features

• Modular Design: Adopts a compact chassis structure, allowing direct plug-in installation in cabinets or field panels and supporting quick replacement.
• Wide Input Voltage Range: The 18-32 V DC wide-tolerance input can adapt to various on-site power supplies, improving system reliability.
• Multiple Output Channels: Can provide single-channel 24 V DC or multi-channel 24 V DC (4 A × 4) configurations to meet the power supply needs of different subsystems.
• High/Low Temperature Adaptability: The operating temperature range covers –40 °C ~ +85 °C, making it suitable for harsh industrial environments.
• Protection Functions: Equipped with overvoltage, undervoltage, overcurrent, short-circuit, and reverse polarity protection to ensure the safety of downstream equipment.
• Easy Maintenance: Terminal block wiring, clear identification, and detachable heat sinks facilitate on-site inspection and component replacement.

3. Structure and Composition

• Housing: Made of aluminum alloy or high-strength plastic, providing good heat dissipation and dust-proof and moisture-proof properties (IP20).
• Power Conversion Module: Uses an efficient switching power supply topology internally to achieve regulated conversion from 18-32 V DC to 24 V DC.
• Output Terminal Block: Bolt-type terminals that support 4 A single-channel or multi-channel parallel output.
• Protection Circuit: Integrates overvoltage, undervoltage, overcurrent, short-circuit, and reverse polarity detection circuits.
• Heat Sink: A metal heat sink is directly attached to the power conversion chip, combined with natural convection heat dissipation.
• Identification Label: Includes model number, input/output specifications, warning signs, and certification marks.

4. Typical Application Fields

Industry	Specific Applications
Industrial Automation	Power supply for PLCs, DCS, field instruments, and sensors
Power Systems	Power supply for generator control units and frequency converter front-ends
Oil and Gas	Power supply for wellhead control cabinets and valve drives
Marine and Offshore Engineering	Power supply for marine automation systems and offshore platform control cabinets
Transportation	Power supply for rail transit and railway signal systems
Manufacturing	Power supply for robots, CNC machine tools, and packaging equipment

5.1 Commissioning

1. Voltage Monitoring: Use a multimeter or on-site monitoring system to confirm that the output 24 V DC is stable within the rated range.
2. Load Testing: Operate under rated load (4 A) for 5 minutes and observe whether overcurrent or over-temperature alarms occur.

5.2 Maintenance

Maintenance Item	Recommended Cycle	Operation Points
Visual Inspection	Monthly	Check for dust, corrosion, or mechanical damage on the chassis.
Wiring Tightening	Every 6 months	Use a torque wrench to check terminal bolts to prevent poor contact due to loosening.
Heat Sink Cleaning	Annually	Use a soft brush or compressed air to remove dust from the heat sink and maintain heat dissipation efficiency.
Functional Self-Test	Annually	Verify the normal operation of overvoltage, undervoltage, and overcurrent protection through the built-in self-test function or external instruments.
Replacement of Aging Components	According to service life (≥ 5 years)	If capacitor bulging or diode aging is found, replace them in a timely manner.

 ------------------------------------------

Many products have not been listed yet. Please contact us for more products

📧 sales5@xrjdcs.com |  📞 +86 18250705533（WhatsApp）丨Sales Manager： Jinny  

Main brand

ABB 丨 GE 丨Allen Bradley  丨  Honeywell 丨   Emerson  丨  Bently Nevada   丨 Westinghouse  

Triconex  丨Foxboro 丨   ICS Triplex  丨  Hima  丨  Schneider 丨  Yokogawa  丨 Woodward  & more

Company Advantages & Main Products

Company Advantageous Services

1. With long-term experience in the industrial control industry, we have a large inventory of products.
2. Leading in the industry, we offer competitive prices and guaranteed product quality.
3. We provide a wide range of models and products, including various rare and discontinued items.
4. Free replacement is available within 15 days if there are quality issues with the products.

Our products, including various modules, cards, drivers, controllers, servo motors, embedded cards, wires, cables, power modules and control modules, are suitable for industries such as iron and steel, hydropower, nuclear power, power generation, glass manufacturing, tire factories, rubber production, thermal power generation, papermaking, shipping and navigation.

Main Products

PLC, DCS, CPU modules, communication modules, input/output modules (AI/AO/DI/DO), power modules, thyristor modules, terminal modules, PXI modules, servo drives, servo motors, industrial displays, industrial keyboards, controllers, encoders, regulators, sensors, I/O boards, counting boards, fiber optic interface boards, acquisition cards, gas turbine cards, FIM cards and other automation spare parts.