I/O Module Installation and Wiring - Module Placement in Racks

Terminal Block Styles

The terminal block is available in the barrier style, shown at left in

Figure 26, and the Euro style, shown at right.

Both styles of terminal blocks have an embossed numbering "key" that shows the numbering pattern of the 20 connections.

The frame associated with the terminal block has a transparent hinged door. The hinged door is a tool secured cover. To open the door, insert a flat screwdriver into the slot at the top and bottom of the door while pulling out. The door has molded-in tabs that hold labels, which are uniquely color-coded to identify each module type.

Each label is printed on both sides. On the front (visible when the door is closed) are I/O channel numbers, with spaces in which tagnames can be written. On the back (visible when the door is open) are wiring patterns for the type of module located in the slot.

Figure 26 - Terminal Block Styles

The 20-pin, inline connectors at the back of the terminal blocks are universal; that is, any type of I/O module can be used with either the Barrier style or the Euro style terminal block.

ATTENTION

Before mounting terminal blocks in the rack, be sure they are properly keyed to the module type they will be used with. See I/O Installation Procedures, page 63.

Terminal Block Colors and Keying

Both the barrier style and the Euro style are available in two colors (red and black). Black terminal blocks, which have gold-colored contacts, are used for low-voltage, low-energy signals such as contact inputs and low DC voltages. Red terminal blocks, which have tin-colored contacts, are used for higher voltages such as 120/240 Vac.

Colors of each Terminal Blocks must correlate to that of the mating header on I/O modules with which they are used; that is:

•Black terminal blocks, which have gold-colored contacts, are for use with I/O modules that have black headers and gold-colored pins in the 20-pin connector; these include: Analog Input, Analog Output, DC Input, DC Output, and Contact Input.

•Red terminal blocks, which have white (tin) contacts, are for use with I/O modules that have red headers and white- (tin-) colored contacts in the 20-pin connector; these include: AC Input, AC Output, and Relay Output.

•Terminal blocks may be keyed by the installer to prevent high voltage terminal blocks from being installed on low voltage modules. See Table 14.

Any of the color-coded labels will fit into the door of any terminal block. Use care to ensure that all hardware components match each other, and also match the control strategy in the configuration file. Use of documentation aids in Appendix A will facilitate correct use of labels.

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HC900 Hybrid Controller Installation and User Guide

Revision 5

 

 

9/03

Page 67 Page 69
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Honeywell HC900 manual Terminal Block Styles, Terminal Block Colors and Keying
Page 67 Page 69

HC900 specifications

The Honeywell HC900 is a robust control solution designed to meet the demands of process industries. This flexible and powerful platform provides a comprehensive set of features tailored for process control and monitoring applications. The HC900 is particularly suited for batch control, continuous processes, and discrete applications, making it a versatile choice for a variety of industries, including oil and gas, chemicals, and electricity generation.

One of the main features of the HC900 is its modular design. This allows users to customize their control systems by selecting from a range of I/O modules, communication options, and control strategies. The system supports both analog and digital inputs and outputs, enabling seamless integration with existing infrastructures. Additionally, the modular approach enhances scalability, allowing users to expand their systems as their needs evolve.

The HC900 is equipped with advanced control technologies, including adaptive control, multivariable control, and real-time data logging. These capabilities facilitate fine-tuned control over complex processes, improving efficiency and reducing waste. The system can manage multiple process loops simultaneously, providing operators with a holistic view of their operations.

Another significant characteristic of the HC900 is its intuitive user interface. The system features a graphical display that allows operators to monitor system performance easily and make adjustments quickly. This user-friendly design minimizes training requirements and encourages efficient operation across different experience levels.

Furthermore, the HC900 incorporates sophisticated data management tools. With built-in logging and reporting functions, users can track process variables and generate comprehensive reports for analysis and regulatory compliance. This data-centric approach fosters informed decision-making and enhances overall operational effectiveness.

From a communication standpoint, the HC900 supports a variety of protocols, making it compatible with many industry-standard devices. This interoperability ensures that users can integrate the HC900 into their existing systems without hassle, streamlining migration and upgrade processes.

Additionally, the HC900 is built with reliability in mind. Its rugged design ensures durability, capable of withstanding harsh environments while maintaining consistent performance.

In summary, the Honeywell HC900 stands out as a powerful and flexible control solution, equipped with modular design, advanced control technologies, and user-friendly interfaces that cater to the diverse needs of process industries. With its comprehensive data management capabilities and robust communications options, the HC900 is an excellent choice for organizations striving for efficiency and reliability.
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