Chapter 4 Parameters

Output frequency

 

 

 

 

 

 

 

 

 

 

DC Braking Time

 

 

 

 

01-09

Start-point for during Stopping

 

 

 

 

Minimum

DC braking

 

 

 

 

 

output

 

 

 

 

 

time during

 

 

 

 

 

 

 

frequency

 

 

 

 

 

 

 

stopping

 

 

 

 

 

 

 

 

 

 

 

Run/Stop

ON

OFF

Time

 

 

 

 

 

 

 

DC Braking Time

DC Brake during Start-up is used for loads that may move before the AC drive starts, such as fans and pumps. Under such circumstances, DC Brake can be used to hold the load in position before setting it in motion.

DC Brake during stopping is used to shorten the stopping time and also to hold a stopped load in position. For high inertia loads, a dynamic brake resistor may also be needed for fast decelerations.

07-05DC Brake Proportional Gain

Control VF VFPG SVC mode

Settings 1 to 500Hz

It is used to set the output voltage gain when DC brake.

Unit: 1

Factory Setting: 50

07-06

Momentary Power Loss Operation Selection

 

 

 

Control

VF

VFPG

SVC FOCPG TQRPG

Factory Setting: 0

mode

 

 

 

 

 

 

 

 

 

 

Settings

0

 

Operation stops after momentary power loss.

 

 

 

1

 

Operation continues after momentary power loss, speed search

 

 

 

 

starts with the Master Frequency reference value.

 

 

 

2

 

Operation continues after momentary power loss, speed search

 

 

 

 

starts with the minimum frequency.

 

This parameter determines the operation mode when the AC motor drive restarts from a momentary power loss.

In PG control mode, the AC motor drive will execute the speed search function automatically by the PG speed when this setting isn’t set to 0.

07-07

Maximum Allowable Power Loss Time

Unit: 0.1

Control

VF

VFPG SVC FOCPG TQRPG

Factory Setting: 2.0

mode

 

 

 

 

4-108

Revision August 2008, 03VE, SW V2.04

Page 156 Page 158
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Delta Electronics VFD-VE Series manual 07-06, Momentary Power Loss Operation Selection, 07-07
Page 156 Page 158

VFD-VE Series specifications

Delta Electronics VFD-VE Series is a state-of-the-art variable frequency drive (VFD) designed to enhance energy efficiency and improve the operational capabilities of various industrial applications. Renowned for its reliability and performance, the VFD-VE Series serves a diverse range of sectors including manufacturing, HVAC, and water treatment.

One of the primary features of the VFD-VE Series is its advanced control algorithms, which provide precise speed and torque control for AC motors. The series utilizes a vector control method that enables excellent dynamic response and a wide speed range. This is particularly beneficial for applications requiring variable speeds or precise positioning, as it ensures smooth acceleration and deceleration while maintaining optimal performance.

The VFD-VE Series stands out with its Energy Saving Technology. By intelligently optimizing motor control parameters based on the load, the VFD can significantly reduce energy consumption. This built-in functionality not only helps companies save on electricity costs but also contributes to a lower carbon footprint, aligning with global sustainability efforts.

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The VFD-VE Series is built to withstand harsh industrial environments. Its robust design includes features such as IP20 or IP55 ingress protection ratings, ensuring reliable operation even in dusty or humid conditions. Furthermore, the drives are equipped with advanced thermal management systems that prevent overheating, thereby prolonging the lifespan of the equipment.

Safety is also a priority in the VFD-VE Series, which incorporates multiple safety features such as overvoltage, undervoltage, and overcurrent protection. These safeguards help protect both the drive itself and the connected machinery, minimizing downtime and reducing maintenance costs.

Overall, Delta Electronics VFD-VE Series combines cutting-edge technology, energy efficiency, and robust design to meet the dynamic needs of modern industrial automation. With its advanced features and reliable performance, it is an ideal choice for businesses aiming to optimize their processes and achieve greater energy savings.
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