3Com VFD-D D Torque Compensation Time Constant, Slip Compensation Time Constant, Hunting Gain

Models: VFD-D D

1 141
Download 141 pages 56.51 Kb
Page 59
Image 59

 

 

 

 

 

Chapter 4 Parameter SettingsDD Series

 

 

 

Settings

0.0~6553.5mH

 

 

 

 

Torque Compensation Time Constant

 

 

 

 

 

Control mode

SVC

Factory setting: 0.020

 

 

 

Settings

0.001~10.000sec

 

 

 

 

Slip Compensation Time Constant

 

 

 

 

 

Control mode

SVC

Factory setting: 0.100

 

 

 

Settings

0.001~10.000sec

 

The slip compensation response time can be set by Pr.01-21 and Pr.01-22 and maximum up to 10 sec.

When Pr.01-21 and Pr.01-22 are set to 10 sec, it is the slowest response time the drive supports. If the response time is set too quick, the system may be unstable.

Torque Compensation Gain

Control mode VF VFPGFactory setting: 0 Settings 010

This parameter sets the amount of additional voltage output during operation to get greater torque.

Slip Compensation Gain

Control mode VF VFPG SVC

Factory setting: 0.00

 

Settings 0.0010.00

 

 

 

 

 

When AC motor drive drives the induction motor, slips increase as load increase. This parameter can be used to set compensation frequency and reduce the slip to close the synchronous speed when the motor runs in the rated current to raise the drive accuracy. When drive’s output current is greater than the motor current at no-load, the drive will compensate the frequency according to the setting in this parameter.

When actual speed is slower than expected, increase the value in Pr.01-24; if actual speed is faster than expected, lower the value in Pr.01-24.

This parameter is valid for SVC mode only.

Slip Deviation Level

Control mode

VFPG SVC FOCPG

Factory setting: 0

 

Settings 00~1000% (0:Disable)

 

 

 

 

 

Detection Time of Slip Deviation

Control mode

VFPG SVC FOCPG

Factory setting: 1.0

 

Settings 0.0~10.0sec

 

 

 

 

 

Over Slip Treatment

Control mode

VFPG SVC FOCPG

Factory setting: 0

 

Settings 0: Warn and keep operation

 

 

1: Warn and ramp to stop

 

 

2: Warn and coast to stop

 

Pr.01-25 to Pr.01-27 is used to set the allowable slip level/time and over slip treatment when the drive is running.

Hunting Gain

Control mode VF VFPG SVC

Factory setting: 2000

4-35

Page 59
Image 59
3Com VFD-D D Torque Compensation Time Constant, Slip Compensation Time Constant, Torque Compensation Gain, Hunting Gain

VFD-D D specifications

The 3Com VFD-D D is an advanced networking solution designed to meet the demands of modern communication and connectivity. As part of 3Com's extensive portfolio of networking products, this device stands out due to its robust features, innovative technologies, and characteristics that cater to various enterprise environments.

One of the main features of the 3Com VFD-D D is its high-speed data processing capability. Operating at speeds that comfortably support high-bandwidth applications, the device is equipped to handle a multitude of simultaneous connections without compromising performance. This makes it an ideal choice for businesses where consistent, fast access to data is critical.

In terms of connectivity options, the VFD-D D supports a variety of protocols, allowing it to seamlessly integrate with existing infrastructure. Whether through Ethernet, Fiber Channel, or wireless technologies, the device offers versatility in connecting diverse network configurations. This adaptability ensures that organizations can optimize their network setups according to their specific requirements.

The 3Com VFD-D D also boasts advanced security features designed to protect sensitive data from potential threats. With built-in encryption protocols and secure access measures, the device safeguards information while offering administrators full control over user permissions. This heightened security is especially important in today's risk-laden digital landscape, providing peace of mind for organizations entrusting their data to the network.

Moreover, the VFD-D D is designed with scalability in mind. Its modular architecture allows businesses to expand their network capabilities as needed, ensuring that the device can grow alongside their evolving requirements. This flexibility helps organizations manage costs effectively while preparing for future technological advancements.

Another characteristic that sets the 3Com VFD-D D apart is its user-friendly management interface. Administration tasks can be performed quickly and intuitively, reducing the burden on IT staff while enabling efficient network monitoring and troubleshooting. With real-time analytics and reporting capabilities, organizations can gain valuable insights into their network's performance.

Overall, the 3Com VFD-D D combines speed, security, and scalability in a single device, making it a powerful addition to any enterprise network. Its advanced features and technologies are tailored to support the dynamic needs of modern businesses, ensuring reliable performance and robust connectivity in an increasingly interconnected world.