51400993-200 HONEYWELL

HONEYWELL 51400993-200 Digital Input Module

Brand：HONEYWELL Model number：51400993-200

Country of origin: United States Product weight：0.4kg

HS code：8517623990

Product Details：

Product Dimensions：

A Honeywell digital input module is a hardware component, typically a circuit board assembly with a front faceplate. It is designed to be installed in a control rack or on a DIN rail. The module has a specific number of channels, each capable of receiving a digital signal (either an AC or DC voltage). The module's internal circuitry provides galvanic isolation between the field inputs and the control system, protecting the sensitive electronics of the controller from electrical noise and voltage spikes. Some modules feature built-in diagnostics, such as monitoring for open circuits or other wiring faults, and a status LED for each channel to aid in troubleshooting.

Product Parameters

Parameters vary by specific model, for example:

Number of Channels: Common configurations include 16, 32, or more inputs.
Input Voltage: Modules are available for different voltage levels, such as 24VDC, 120VAC, or 230VAC.
Input Type: Can be sinking (current flows from the field device into the module) or sourcing (current flows from the module to the field device).
Response Time: The time it takes for the module to register an ON-to-OFF or OFF-to-ON transition (e.g., a few milliseconds).
Isolation: Often features isolation between channels or groups of channels to prevent ground loops.
Power Consumption: The amount of current the module draws from the system's power supply (e.g., 130 mA at 5V supply).
Operating Environment: Specified temperature and humidity ranges, as well as resistance to shock and vibration.

Product Advantages

High Reliability and Safety: Many modules are certified for use in hazardous locations (e.g., Class 1, Div 2). Redundant configurations are available to ensure no single point of failure.
Durability: Built to withstand harsh industrial environments and resist electromagnetic interference (EMI) from motors and other equipment.
Compact Design: The "Module-IOTA" integrated structure (in Series C) saves control cabinet space and simplifies installation.
Easy Maintenance: Features like plug-and-play installation and comprehensive self-diagnostics reduce maintenance time and effort.
Flexibility: Some modern modules, like Universal I/O, reduce the need for specific hardware configurations, allowing for easier last-minute design changes.

Important Considerations

Obsolete Models: As a major manufacturer, Honeywell updates its product lines. Many older digital input modules may be considered legacy or obsolete, which can make sourcing replacements and finding technical support more challenging.
Installation and Safety: Installation must be performed by authorized personnel, and all manufacturer instructions must be followed to ensure safe operation. Adherence to local electrical codes is mandatory.
ESD Precautions: Proper electrostatic discharge (ESD) precautions must be taken when handling modules to prevent damage.
Compatibility: Ensure the module is compatible with your specific controller platform (e.g., Experion PKS, HC900) and other system components.
No User-Serviceable Parts: These modules are sealed units and should not be opened or modified, as doing so will void the warranty and could pose a safety risk.

Product Applications

Honeywell digital input modules are used across a wide range of industries for various control and monitoring tasks:

Process Control: Monitoring the status of pumps, valves, and other process equipment in chemical plants, oil and gas refineries, and pharmaceutical manufacturing.
Industrial Automation: Interfacing with limit switches, proximity sensors, and E-stops on assembly lines and robotic systems.
Building Automation: Monitoring fire alarm pull stations, security contacts, and other discrete devices in building management systems.
Power and Energy: Used in power plants to monitor breaker status and other electrical signals.
Water and Wastewater: Monitoring pump status, valve positions, and other operational signals in treatment facilities.

51400993-200 HONEYWELL

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