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5462-757 - 48-channel Discrete Input Module is available in stock which ships the same day.
5462-757 - 48-channel Discrete Input Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5462-757
Manufacturer: Woodward
Series: MicroNet / MicroNet TMR
Module Type: Discrete Input
Number of Channels: 48 Optically Isolated Inputs
Input Current: 3 mA per channel
Contact Power: Onboard isolated +24 VDC (0.3 A)
External Contact Power: Supported (18–32 VDC)
Isolation: Optical Isolation for enhanced noise immunity
Dimensions: 19.1 cm x 2.5 cm x 23.5 cm
Operating Temp: -30 °C to +65 °C (-22 °F to +149 °F)
Availability: In Stock
Origin: United States
FUNCTIONAL DESCRIPTION:
The 5462-757 is a high-density 48-Channel Discrete Input Module designed and manufactured for the Woodward MicroNet and MicroNet TMR control systems. It serves as a vital interface for capturing state changes from field devices such as limit switches, relay contacts, and pushbuttons. By translating these physical on/off signals into digital data for the system CPU, the 5462-757 enables precise sequencing, alarming, and safety monitoring of industrial prime movers.
HIGH-DENSITY OPTICAL ISOLATION
To ensure the integrity of the central control logic, the 48-channel Discrete Input Module features 48 independent, optically isolated input circuits. This design protects the MicroNet backplane and CPU from external electrical noise, ground loops, and high-voltage transients often present in power plant environments. Each channel requires only a minimal 3 mA current to register a state change, reducing the thermal load and power consumption within the control chassis.
FLEXIBLE CONTACT WETTING
The module is designed with flexibility in mind regarding contact wetting voltage. It features an onboard, isolated +24 VDC power supply (rated at 0.3 A) that can be used to power the external field contacts. Alternatively, the module can be configured to use an external 18–32 VDC power source. This versatility allows the Discrete Input Module to adapt to various field wiring standards and power distribution architectures without requiring additional hardware.
SYSTEM INTEGRATION AND TERMINATION
The 5462-757 is typically installed in the MicroNet chassis card guides and interfaces with the system via low-density discrete cables connected to Field Termination Modules (FTMs). In a standard setup, each Discrete Input module connects to two 24-channel FTMs, allowing for organized and secure termination of all 48 field signals. The module supports "hot-replacement" in certain MicroNet configurations, facilitating maintenance without complete system shutdowns.
WHY BUY FROM WOC:
World of Controls supports the reliability of your Woodward MicroNet systems by offering the 5462-757 in both UNUSED and REBUILT conditions. Every discrete input module is rigorously tested on specialized diagnostic benches to verify signal response, optical isolation integrity, and contact power stability across all 48 channels. We maintain a large inventory of MicroNet I/O to ensure rapid response to your maintenance and upgrade requirements. With global logistics and 24/7 technical expertise, WOC is your trusted partner for high-precision turbine control hardware.
What is the Woodward 5462-757?
The 5462-757 is a 48-channel Discrete Input module used in Woodward MicroNet systems to sense the state of external switches or relay contacts.
Does this module require an external power supply for the contacts?
No, it is not strictly required. The module includes an onboard isolated +24 VDC supply for contact wetting, though it can also be configured to accept external power if your site standard requires it.
How many channels are on the Discrete Input Module?
This is a high-density module featuring 48 individual discrete input channels, organized for connection to two separate 24-channel terminal boards.
What is the purpose of the optical isolation?
Optical isolation separates the field-side electrical circuits from the sensitive logic-side electronics. This prevents electrical surges or noise from the field from damaging the control system CPU or causing data errors.
Can I use this in a MicroNet TMR system?
Yes, the Discrete Input Module is compatible with both Simplex MicroNet and Triple Modular Redundant (TMR) MicroNet architectures, providing reliable data for 2-out-of-3 voting logic where necessary.