CompoBus/D Communications Line Design

Chapter 2

 

 

 

2-4 Communications Line Noise Prevention

2-4-1 Communications Line Noise

The communications line sends and receives high-speed pulse signals, and checks whether the data is correct by checking the sequence of the signals. If the amount of noise on the communications line is too great, the interference will alter the communications signal data, and communications will be impossi- ble. Communications lines are more sensitive and require higher speeds than normal I/O lines, so be sure that noise does not interfere with communications. Use the preventative noise countermeasures described here when configuring the system to ensure smooth system start up.

2-4-2 Grounding the Network

HGrounding the Network

The CompoBus/D Network must be grounded at only one location so that a ground loop is not created. The ground should also be connected as close as possible to the center of the Network. Connect the cable shield to the ground terminal on the communications power supply and then connect to a ground of 100 Ω max., as shown in the following diagram.

 

Power Supply Tap

 

 

V+

 

V+

 

CAN H

 

CAN H

 

Shield

 

Shield

Communications

CAN L

 

CAN L

cable

 

 

V–

 

V–

 

Ground

V–

V+

 

terminal

 

 

 

FG V– V+ Communications power supply

Ground (100 Ω max.)

If more than one communications power supply is connected to the same Network, ground only the one nearest the center of the Network. Do not connect the shield wire at the other power supplies.

Note

1.

Always ground the communications cable shield at one and only one location in the Network.

Note

2.

Always ground to 100 Ω or less.

Note

3.

Always use a separate ground. Never use the same ground as for Inverters or other drive

 

 

system devices.

HGrounding the CompoBus/D Communications Card

The CompoBus/D Communications Card should be grounded according to DeviceNet recommenda- tions installing a noise filter as shown in the following diagram. The ground is normally wired to the ground terminal (12 (G)).

2-15

Page 32 Page 34
Page 33
Image 33
Omron 3G3FV-PDRT1-SIN user manual Communications Line Noise Prevention, Grounding the Network
Page 32 Page 34

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.
Top Page Image Contents