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Product Introduction
The Honeywell 621-4350 Input Module is a crucial component of Honeywell’s robust control systems, primarily designed for the HC900 Process Automation Controller series. This module provides high-density, reliable input functionality for industrial automation applications, supporting a wide range of field devices, including sensors, switches, and transmitters. With its versatility and ease of integration, the 621-4350 is ideal for both basic and advanced control systems in process industries such as oil and gas, chemicals, pharmaceuticals, and manufacturing.
Engineered for high reliability and performance, the Honeywell 621-4350 Input Module features 16 channels of digital input that provide a stable and noise-immune signal interface. The module’s compact design and flexible configuration options make it suitable for environments requiring space-efficient and high-performance control solutions.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | 621-4350 |
| Product Type | Digital Input Module |
| Compatibility | Compatible with Honeywell HC900 Process Automation Controller |
| Input Channels | 16 Digital Inputs |
| Input Type | Dry contact or wet contact (voltage or current) |
| Input Voltage | 24V DC (Nominal) |
| Input Current | 4-20 mA, 0-10V DC for analog interfaces (via conversion) |
| Isolation | 1500V (Optical Isolation) |
| Connector Type | Screw terminal block |
| LED Indicators | LED indicators for input status and fault detection |
| Dimensions (W x H x D) | 118 x 47 x 94 mm |
| Weight | 0.25 kg |
| Power Consumption | 2.5 W |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Compliance | CE, UL, RoHS, FCC |
Product Applications
The Honeywell 621-4350 Input Module is designed for use in applications that require a highly reliable and noise-immune interface between control systems and field devices. Key applications include:
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Process Automation Systems: For interfacing with digital sensors and devices in industrial environments.
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Manufacturing: Collects input signals from machinery, control panels, and factory-floor sensors.
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Oil and Gas: Interfaces with hazardous area field devices, ensuring reliable operation in critical process control systems.
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Pharmaceutical Industry: Provides safe and accurate data transmission from measurement devices in regulatory-controlled environments.
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Utilities: For monitoring digital inputs from pumps, valves, and power systems.
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Factory Automation: Collects operational data for monitoring and diagnostic purposes in assembly lines and production systems.
Product Advantages
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High Input Density: The 16 channels enable efficient utilization of space while maintaining optimal system performance.
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Enhanced Signal Integrity: The module supports optical isolation, preventing noise interference from affecting data accuracy.
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Compact Design: Its small footprint helps save space within the control system, making it ideal for tight environments.
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Wide Operating Range: Operates effectively across a broad temperature and humidity range, making it suitable for various industrial applications.
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Cost-Effective: Reduces system complexity and costs by consolidating multiple inputs into a single module.
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LED Status Indicators: Provides easy fault detection and system health monitoring, enabling quicker troubleshooting.
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Flexible Input Configuration: Supports a wide range of field device types (dry contact, voltage, or current inputs).
Frequently Asked Questions (FAQ)
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What types of inputs does the 621-4350 support?
The module supports digital inputs, both dry contact and wet contact (voltage or current), as well as analog inputs through conversion. -
Is the 621-4350 compatible with Honeywell’s HC900 controller?
Yes, the module is designed to be fully compatible with the Honeywell HC900 Process Automation Controller series. -
Can I use this module for hazardous area applications?
Yes, with proper installation and wiring, the module can be used in hazardous environments, especially in process industries like oil and gas. -
What is the power consumption of the 621-4350 module?
The module typically consumes 2.5 watts of power. -
What are the physical dimensions of the 621-4350?
The module measures 118 x 47 x 94 mm. -
Does this module support input isolation?
Yes, the module supports 1500V optical isolation, ensuring signal integrity in noisy environments. -
What is the operating temperature range?
The 621-4350 operates within a temperature range of 0°C to 60°C. -
Can I use this module in environments with high humidity?
Yes, the module is designed to function effectively in environments with a humidity range of 5% to 95% RH (non-condensing). -
How are input status and faults indicated?
The module has LED indicators for input status and fault detection, making it easy to identify issues. -
Is the module RoHS compliant?
Yes, the 621-4350 complies with RoHS and other industry standards like CE and UL.
Related Models from the Same Series
| Model | Description | Key Features |
|---|---|---|
| 621-4351 | 16-channel digital output module | Provides output signals to control devices |
| 621-4352 | 8-channel analog input module | Analog input module for temperature and pressure measurements |
| 621-4353 | 16-channel relay output module | Relay-based output module for alarm and control functions |
| 621-4360 | High-speed digital input module | Fast response for time-sensitive applications |
| 621-4355 | Digital input/output module with isolated channels | Ideal for sensitive signal environments |
| 621-4356 | Expansion module for additional inputs | Expands system capacity with more input channels |
Popular Honeywell Models
| Model | Description | Key Features |
|---|---|---|
| HC900 | Process automation controller | Advanced control capabilities, scalable |
| 621-4400 | Analog output module | Supports a wide range of analog devices |
| 621-4358 | Digital input/output module with relays | Includes built-in relay outputs for control |
| 631-2000 | Intelligent pressure transmitter | High accuracy for pressure monitoring |
| 631-5000 | Smart flow meter transmitter | Supports mass flow measurements for fluid systems |
| 3400 | Smart temperature sensor module | Compatible with a variety of temperature sensors |
