Chapter 4 Parameters

From the table, we see that the PWM carrier frequency has a significant influence on the electromagnetic noise, AC motor drive heat dissipation, and motor acoustic noise.

 

00-18

Auto Voltage Regulation (AVR) Function

 

 

Control

VF

VFPG

SVC FOCPG TQRPG

Factory setting: 0

 

mode

 

 

 

 

 

 

 

 

Settings

0

Enable AVR

 

 

 

 

1

Disable AVR

 

 

 

 

2

Disable AVR when deceleration stop

 

 

 

 

 

 

 

It is used to select the AVR mode. AVR is used to regulate the output voltage to the motor. For example, if V/f curve is set to AC200V/50Hz and the input voltage is from 200 to 264VAC, the output voltage won’t excess AC200V/50Hz. If the input voltage is from 180 to 200V, the output voltage to the motor and the input voltage will be in direct proportion.

When setting Pr.00-18 to 1 during ramp to stop and used with auto accel./decel. function, the acceleration will be smoother and faster.

 

00-19

Auto Energy-saving Operation

 

 

 

 

 

 

 

 

Control

VF

VFPG

SVC FOCPG

Factory setting: 0

 

mode

 

 

 

 

 

 

 

 

Settings

0

Disable

 

 

 

 

1

Enable

 

 

 

 

 

 

 

When the Auto Energy-saving function is enabled, the drive will operate with full voltage during acceleration and deceleration. At constant speed, the AC drive will calculate the optimal output voltage value for the load. It is possible for the output voltage to be 25% below Maximum Output Voltage during auto energy-saving operation. This function should not be used with variable loads or continuous rated output loads.

When output frequency is constant, i.e. constant operation, the output voltage will be auto decreased with load reduction. To make the AC motor drive runs under the energy-saving with the minimum value of the product of voltage and current.

Revision August 2008, 03VE, SW V2.04

4-47

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Delta Electronics VFD-VE Series manual 00-18, Auto Voltage Regulation AVR Function, 00-19, Auto Energy-saving Operation
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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.

Another key characteristic of the VFD-VE Series is its user-friendly interface. Equipped with a clear and intuitive LCD display, it simplifies monitoring and adjustments, allowing operators to configure settings easily. Additionally, the series supports various communication protocols such as Modbus, EtherCAT, and CANopen, enabling seamless integration with existing control systems for enhanced automation.

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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