CompoBus/D Communications Line Design

Chapter 2

 

 

 

HTotal Drop Line Length

The total drop line length is the total sum length of all the drop lines (but not including the trunk line). Do not exceed the maximum total drop line length (even when the length of each individual drop line is 6 m or less). The standard for the total drop line length varies with the baud rate as shown in the previous table.

HConfiguration Example

The following configuration example shows the maximum length of the Network, the drop line lengths, and the total drop line length.

Terminating Resistor

Trunk line 10 m

2m

Node

Trunk line 10 m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 m

6 m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Node

Trunk line 20m

Terminating

Resistor

2 m

Node

2 m

1 m

Node

1 m

1 m

2 m

2 m

 

Node

6 m

6 m

6 m

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Node

Node

Node

Node

Node

Node

Drop line

Drop line

Drop line

Drop line

2m

5 m

6 m

6 m

Maximum Network Length

Drop Line Length

Total Drop Line Length

The longest distance between nodes is 48 m, and the distance between the two Terminating Resistors is 40 m. The maximum Network length is therefore 48 m.

There are four branch points in the trunk line. The length of each drop line is shown in the diagram. The maximum drop line length is 6 m.

The sum of all the drop lines is 40 m.

2-2-2 Locating Terminating Resistors

Be sure to connect the Terminating Resistors at both ends of the trunk line to reduce signal reflection and stabilize communications.

When there is a T-branch Tap 6 m or less from the end of the trunk line (or the node):

A Terminating Resistor attached to a T-branch Tap can easily be mounted without taking up much space.

When there is not a T-branch Tap 6 meters or less from the end of the trunk line (or the node):

A Terminating Resistor must be connected before that point. Either a T-branch Tap mounted to a Terminating Resistor or a terminal block with Terminating Resistor can be used. In this case, be sure to make the cable length 1 m or less from the node to the Terminating Resistor.

 

 

 

1 m or less

Truck line

 

 

 

 

 

 

 

 

 

 

 

T-branch Tap mounted to a Terminating Resistor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or a terminal block with Terminating Resistor.

 

 

 

Node

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Node at end of trunk line

2-5

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Image 23
Omron 3G3FV-PDRT1-SIN user manual Locating Terminating Resistors, Total Drop Line Length, Configuration Example
Page 22 Page 24

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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