CompoBus/D Communications Line Design

Chapter 2

 

 

 

2-1 Network Configuration Overview

The following diagram shows the configuration of a CompoBus/D Network.

Terminating Resistors

 

 

 

 

 

 

Terminating Resistors

are connected at each

 

Communications

CompoBus/D

are connected at each

end of the trunk line.

 

power supply

cables are used.

end of the trunk line.

 

 

 

24 VDC

Power Supply Tap

Trunk

 

 

 

 

 

 

 

 

 

Trunk line

Trunk line

Trunk line

or T-branch Tap

line

M Trunk line M Trunk line

 

 

 

T

T

T

 

T

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

T-branch

 

 

 

 

 

 

 

 

T-branch

 

 

 

 

 

T-branch

 

 

 

 

 

 

T-branch

 

Node

 

 

Node

 

 

 

 

 

 

 

 

 

 

T-branch

 

 

 

 

 

 

 

 

 

 

 

Tap

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tap

 

 

 

 

 

Tap

 

 

 

 

 

 

Tap

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tap

CompoBus/D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drop line

Drop line

 

T-branch Tap

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drop line

 

 

Drop line

 

 

 

 

Drop line

 

M

 

 

Node

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cables are used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

Node

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drop line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Node

 

 

Node

 

 

 

 

 

Node

 

 

M

 

 

Node

 

 

 

 

 

 

Drop line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M

 

Node

 

 

 

 

 

T: T-branch connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M: Multi-drop connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Node

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CompoBus/D cables (5-wire cables) are used for the trunk lines and drop lines.

2-1-1 Network Components

HNodes

There are two kinds of nodes on a CompoBus/D Network: The Master and Slaves. The Slaves connect to external I/O and the Master administers the Network and manages the external I/O of the Slaves. The Master and Slaves can be connected at any location in the Network, as shown in the preceding diagram.

HTrunk/Drop Lines

The trunk line refers to the cable that has Terminating Resistors on both ends. Cables branching from the trunk line are known as drop lines. The trunk line length does not necessarily coincide with the maxi- mum length of the Network. CompoBus/D communications are transmitted through 5-wire cables. The cables come in thick and thin versions.

HConnection Methods

Two methods can be used to connect CompoBus/D nodes: The T-branch method and the multi-drop method. With the T-branch method, the node is connected to a drop line created with a T-branch Tap. With the multi-drop method, the node is directly connected to the trunk line or the drop line. Secondary branches can be made from a drop line. Both of these connection methods can be used in the same Network.

HTerminating Resistors

Terminating Resistors are connected at each end of the trunk line to reduce signal reflection and stabi- lize communications. There are two kinds of Terminating Resistors available: One that is provided with a T-branch Tap and a Terminal-block Terminating Resistor. Use a CompoBus/D Cable when connecting a Terminal-block Terminating Resistor.

HCommunications Power Supplies

To use CompoBus/D, connect a communications power supply to the communications connector of each node with a 5-wire cable. Basically, a communications power supply, internal circuit power supply, and I/O power supply must be provided separately.

2-2

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Omron 3G3FV-PDRT1-SIN user manual Network Configuration Overview, Network Components
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3G3FV-PDRT1-SIN specifications

The Omron 3G3FV-PDRT1-SIN is a highly sophisticated variable frequency drive (VFD) designed to enhance energy efficiency and drive performance in various industrial applications. This particular model is part of the Omron 3G3FV series, which is well-regarded for its reliability, versatility, and ease of use.

One of the main features of the 3G3FV-PDRT1-SIN is its ability to control asynchronous motors efficiently. The drive supports a wide range of motor types, making it suitable for diverse applications across different sectors, including manufacturing, HVAC systems, and material handling. The unit is designed to provide precise control over the speed and torque of motors, which is crucial for optimizing machine performance and energy consumption.

The 3G3FV-PDRT1-SIN incorporates advanced technologies such as vector control and high-performance algorithms. These technologies allow for superior motor control, enabling the drive to maintain accurate speed and torque under varying loads. This functionality is essential for applications that require consistent performance, particularly in processes that demand high precision and responsiveness.

Additionally, the drive features an easy-to-use graphical display, which simplifies the programming and monitoring of drive settings. Users can quickly configure the operating parameters and monitor performance metrics, enhancing operational efficiency. The intuitive interface also allows for quick troubleshooting, reducing downtime and maintenance costs.

The Omron 3G3FV-PDRT1-SIN is built with robustness and durability in mind. It conforms to several international standards, ensuring reliable operation in industrial settings. The drive is designed to withstand harsh environments, including fluctuations in temperature and humidity. This resilience helps to extend the lifespan of both the drive and the connected motor.

Furthermore, the 3G3FV series includes built-in communication capabilities that facilitate integration with other automation equipment. This connectivity supports various industrial protocols, enabling seamless data exchange and real-time monitoring of system performance.

In conclusion, the Omron 3G3FV-PDRT1-SIN is an advanced variable frequency drive that combines energy efficiency, precision control, and robust design. It is an ideal solution for optimizing motor-driven systems across a range of industrial applications, with features that enhance user experience and overall operational effectiveness.
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