Low Voltage Lv, Suitable power | Delta Electronics VFD-VE Series

Chapter 5 Troubleshooting

5.4 Low Voltage (Lv)

Low voltage

Yes

Power cut, including momentary

power loss

Restart after reset

Check if there is any malfunction

Yes

Change defective component

component or disconnection in

and check connection

power supply circuit

Check if voltage is

Change power supply

within specification

system for requirement

Yes

Check if there is heavy load

Yes Using the different power

with high start current in the

supply for this drive and

same power system

heavy load system

Check if Lv occurs when

Yes

Suitable power

breaker and magnetic

transformer capacity

contactor is ON

Check if voltage between +1/+2 No and - is greater than Pr.06-00

Yes

Control circuit has malfunction or misoperation due to noise. Please contact DELTA.

Yes

Maybe AC motor drive has malfunction. Please contact DELTA.

Revision August 2008, 03VE, SW V2.04

5-3

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.

Delta Electronics VFD-VE Series manual Low Voltage Lv, Suitable power

Models: VFD-VE Series

5.4 Low Voltage (Lv)

Suitable power

VFD-VE Series specifications