VFD-F Series
Factory Setting: 00

5.12 Group 11: Fan and Pump Control Parameters

11 - 00 V/f Curve Selection

Settings

00: Determined by group 1

 

01: 1.5 power curve

 

02:

1.7 power curve

 

03:

2 power curve

04: cube curve

This parameter is to set V/f curve. If this parameter isn’t set to 00, parameter 01-03 and 01-04 will disable.

Input current of the motor could divide into two orthogonal vectors: magnetic vector and torque vector. Gap flux, which is produced by Magnetic vector, is in direct proportion with output voltage of motor. Torque vector produces torque. Torque is in direct proportion with the result of magnetic vector multiply by torque vector. In theory, if the value of magnet vector is the same with torque vector (in unsaturated flux condition), the input current is minimum. If motor loading is unsteady torque loading (loading torque is in direct proportion with speed. For example, the loading of fan or pump), loading torque is low during low speed, suitable lower input voltage will decrease input current of magnetic field to lower flux loss and iron loss of the motor and promote whole efficiency.

When this parameter is set to high power V/f curve and low frequency torque is lower, it is not suitable for AC drive to accel/decel quickly. If it needs to accel/decel quickly, it is not recommended to use this parameter.

 

01-02Voltage%

100

1.5 power curve

90

80

1.7 power curve

70

 

602 power curve

 

 

50

 

3 power curve

 

 

 

 

 

 

 

40

 

 

 

 

Frequency

 

 

 

 

 

 

 

 

 

 

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

%

 

 

 

20

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

01-01

 

 

 

0

20

 

40

60

80

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V/F Curve Diagram

 

 

 

 

 

 

 

 

 

 

 

11 - 01

Circulative Control

 

 

 

 

 

 

Factory Setting: 00

 

Settings

00: No function

 

 

 

 

 

 

 

01: Time circulation (by time)

 

 

 

02: Fixed amount circulation (by PID)

03: Fixed amount control (an AC drive runs with 4 motors)

This parameter is to set an AC drive runs with multiple motors in circulation control mode.

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Delta Electronics VFD-F Series manual Group 11 Fan and Pump Control Parameters, Curve Diagram

VFD-F Series specifications

Delta Electronics has established itself as a leader in the production of Variable Frequency Drives (VFDs), and the VFD-F Series exemplifies their commitment to innovation and efficiency in motor control solutions. Designed for a wide range of applications, the VFD-F Series ensures seamless operation in various industrial settings, from pumps and fans to conveyor systems and HVAC equipment.

One of the primary features of the VFD-F Series is its compact design, which allows for easy integration into existing systems without consuming excessive space. This makes it an ideal choice for projects where space is limited. The series also boasts a high IP20 protection rating, ensuring that the drives are safeguarded against dust and accidental contact, contributing to their reliability and longevity.

The VFD-F Series utilizes advanced control technologies, including vector control and scalar control. Vector control provides precise torque and speed control, allowing for optimal performance under varying load conditions. This is particularly advantageous in applications requiring high accuracy, such as robotics and machine tools. The scalar control mode, on the other hand, is simpler and suitable for applications where precise control is not as critical.

Energy efficiency is a hallmark of the VFD-F Series. By allowing users to control motor speed and torque based on the actual demand, these drives can significantly reduce energy consumption compared to traditional fixed-speed motors. Coupled with Delta's energy-saving algorithms, the VFD-F Series not only promotes sustainable operation but also helps lower operational costs.

Another key characteristic of the VFD-F Series is its user-friendly interface. The intuitive control panel and programmable features enable quick setup and adjustments. Furthermore, the series supports multiple communication protocols, including Modbus, CANopen, and EtherCAT, which facilitate integration into various automation systems.

Safety features are paramount in the design of the VFD-F Series. It includes built-in protections against over-voltage, over-current, and overheating, ensuring safe operation in demanding environments. Additionally, its compliance with international safety standards underlines its reliability and robustness.

In summary, Delta Electronics' VFD-F Series stands out with its compact design, advanced control technologies, energy efficiency, user-friendly interface, and integral safety features. These characteristics make it a formidable solution for industries seeking high-performance motor control while maximizing efficiency and safety. As the demand for integrated and intelligent automation solutions grows, the VFD-F Series is well-positioned to meet these challenges head-on, reinforcing Delta Electronics’ reputation as a pioneer in the field.