(10 to 20 m or less)
„ For models 7.5hp/5.5kW and above:
The length of the cable between AC motor drive and motor should be as short as possible
Connect an output reactor (optional) to the output terminals of the AC motor drive
„ Use a motor with enhanced insulation.
„
„
Appendix B Accessories
The length of motor cable
When motor is driven by an AC motor drive of PWM type, the motor terminals will experience surge voltages easily due to components conversion of AC motor drive and cable capacitance. When the motor cable is very long (especially for the 460V series), surge voltages may reduce insulation quality. To prevent this situation, please follow the rules below:

Insulation level of motor

1000V

1300V

1600V

 

 

 

 

460VAC input voltage

66 ft (20m)

328 ft (100m)

1312 ft (400m)

 

 

 

 

230VAC input voltage

1312 ft (400m)

1312 ft (400m)

1312 ft (400m)

 

 

 

 

„For models 5hp/3.7kW and less:

Insulation level of motor

1000V

1300V

1600V

 

 

 

 

460VAC input voltage

66 ft (20m)

165 ft (50m)

165 ft (50m)

 

 

 

 

230VAC input voltage

328 ft (100m)

328 ft (100m)

328 ft (100m)

 

 

 

 

NOTE

When a thermal O/L relay protected by motor is used between AC motor drive and motor, it may

malfunction (especially for 460V series), even if the length of motor cable is only 165 ft (50m) or less.

To prevent it, please use AC reactor and/or lower the carrier frequency (Pr. 00-17 PWM carrier

frequency).

NOTE

Never connect phase lead capacitors or surge absorbers to the output terminals of the AC motor

drive.

Revision August 2008, 03VE, SW V2.04

B-31

Page 269 Page 271
Page 270
Image 270
Delta Electronics VFD-VE Series manual Insulation level of motor 1000V 1300V 1600V, „ For models 5hp/3.7kW and less
Page 269 Page 271

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.
Top Page Image Contents