The Woodward 9905-973 Channel Relay Module is a high-reliability relay interface designed to expand control capabilities in industrial automation and power generation systems. It provides precise switching of electrical signals, ensuring safe and dependable operation for monitoring and control applications. The module is commonly used in conjunction with other Woodward control systems to enhance overall system functionality and flexibility.

Technical Specifications

Product Applications

• Industrial automation systems for controlling auxiliary devices

• Power generation plants for monitoring generator and turbine operations

• Safety interlocks and emergency shutdown systems

• Signal isolation and amplification for control system inputs and outputs

• Interface with programmable logic controllers (PLCs) and distributed control systems (DCS)

• Remote monitoring and control of critical processes

Product Advantages

• High Reliability: Engineered for continuous operation in harsh industrial environments.

• Fast Response: Typical switching time under 10 milliseconds ensures real-time signal control.

• Flexible Mounting: Supports both DIN rail and panel installation, providing versatile integration options.

• Electrical Isolation: Protects control circuits from voltage spikes and ground loops.

• Wide Temperature Range: Suitable for environments ranging from -40°C to 70°C.

• Compatibility: Easily interfaces with Woodward controllers and other standard automation systems.

• Compact Design: Space-saving form factor for control panels and equipment racks.

FAQ

Q1: What is the nominal input voltage for the 9905-973 module?

A1: The module operates at 24 VDC nominal input voltage.

Q2: What type of relay contacts does it provide?

A2: It provides SPDT (Single Pole Double Throw) relay contacts.

Q3: What is the switching capacity of the relay?

A3: The relay can switch up to 5 A at 250 VAC or 5 A at 30 VDC.

Q4: Can this module operate in extreme temperatures?

A4: Yes, it operates reliably in temperatures from -40°C to 70°C.

Q5: Is electrical isolation provided between inputs and outputs?

A5: Yes, the module offers 1500 VAC isolation between input and output circuits.

Q6: What is the typical response time of the relay?

A6: The typical response time is under 10 milliseconds.

Q7: What mounting options are available for this module?

A7: It can be mounted on a DIN rail or directly on a panel.

Q8: Can the module interface with PLCs or DCS systems?

A8: Yes, it is designed to interface seamlessly with PLCs, DCS, and other automation controllers.

Q9: What standards and certifications does the module comply with?

A9: It is CE compliant and UL recognized.

Q10: Is the module suitable for use in safety-critical systems?

A10: Yes, due to its high reliability and isolation capabilities, it is suitable for integration into safety interlock and emergency shutdown systems.