Chapter 2: Connections

Power Supply Connections

The FBDA module requires 13 to 18VDC @ 10mA. Model 232PS2 available from B&B Electronics is recommended. Although the 232PS2 is a 12VDC power supply, it outputs a voltage above 13VDC when less than 10mA are being drawn from it. The power supply is connected to the terminal blocks marked +13V and GND. Make sure the polarity of the power supply is correct (the white striped wire on the 232PS2 is the positive lead).

Sensor Connections

Most full-bridge sensor circuits require four connections for the sensor to operate properly. These connections will be made using the terminal blocks. First, an excitation voltage is required to excite the bridge circuitry. This can be done using the adjustable excitation voltage (marked EXV) available on the FBDA, or another voltage source can be furnished by the user. This excitation voltage is referenced with respect to ground, which is the second connection (marked GND). The remaining two leads from the sensor carry the differential signal voltage that is to be conditioned and read by the data acquisition module. These two leads are connected to SIG+ and SIG-. Consult your sensor manual to determine the signal lead polarity. Table 2.1 shows the terminal block assignments.

Table 2.1: Terminal Block Assignments

Terminal

Function

I/O

Block Name

 

 

SIG+

Positive Signal Lead

Input

SIG-

Negative Signal Lead

Input

EXV

Excitation Voltage

Output

A/D 1

A/D Converter channel

Input

+13V

Power Supply Connection

Input

GND

Power Supply Connection

Input

Note: A/D 1 is connected straight through from the terminal blocks to DB-25 pin # 9. This allows access to A/D channel 1 on B&B Electronic’s SDAXX line of A/D converters. This channel can read voltages between 0 and 5VDC (useful for calibrating the excitation voltage). This channel has no signal conditioning circuitry. It is simply connected to A/D 1 on the data acquisition module.

Documentation Number FBDA0797 Manual

3

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5105

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B&B Electronics FBDA manual Power Supply Connections, Sensor Connections, Terminal Function Block Name
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FBDA specifications

B&B Electronics’ FBDA series stands as a testament to innovation in the realm of data communication and networking solutions. These robust devices are designed to facilitate seamless data transmission, making them an essential component for various industrial applications. Thanks to their advanced features and technologies, the FBDA devices are suitable for demanding environments where reliability and performance are critical.

One of the standout characteristics of the FBDA series is its support for multiple communication protocols. This versatility ensures that users can integrate the devices into diverse systems without facing compatibility issues. The FBDA supports protocols such as RS-232, RS-422, and RS-485, making it an ideal choice for various applications, from serial communications in a factory setting to remote data acquisition in agricultural or environmental monitoring systems.

The FBDA incorporates advanced signal processing technologies that enhance data integrity over long distances. With features like advanced error-checking mechanisms and robust anti-jamming capabilities, the FBDA ensures that data remains accurate and reliable, even in electrically noisy environments. This capability is particularly valuable in industrial settings where electromagnetic interference can often disrupt signals.

Another distinguishing feature of the FBDA series is its compact and sturdy design, which allows for easy integration into existing systems without requiring extensive modifications. The rugged build quality ensures durability, making the devices suitable for harsh conditions, including extreme temperatures and vibrations commonly found in industrial installations.

Moreover, the FBDA series is equipped with user-friendly interfaces that facilitate easy configuration and monitoring. Many models come with features like LED indicators to provide real-time feedback on the operational status, allowing for quick troubleshooting and maintenance. Additionally, the devices often have intuitive software options that make setup and adjustment straightforward, enabling users to maximize functionality with minimal effort.

Power efficiency is another key characteristic of the FBDA series. Designed to operate at low power consumption levels, these devices help minimize energy costs while maintaining high performance. This feature is particularly beneficial for applications in remote locations where power availability may be limited.

In conclusion, B&B Electronics’ FBDA devices exemplify cutting-edge technology in data communication, combining multiple protocol support, robust signal processing, durable design, user-friendly interfaces, and energy efficiency. Their versatility and reliability make them an invaluable asset for any industrial or commercial application needing efficient data communication solutions.
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