Potentiometer Scale

Chapter 5 ParametersVFD-S Series

Example 6:

In this example, a negative bias is used to provide a noise margin. Also a potentiometer frequency gain is used to allow the Maximum Output Frequency to be reached.

Max.

Output Pr.1-00 Freq.

60Hz

Negative	0Hz
bias 6Hz		0V 1V

Gain adjustment

Factory Settings

Pr.1-00=60Hz--Max. output Freq.

Pr.4-00=10%--Potentiometer bias freq.

Pr.4-01=1 -- Bias polarity

Pr.4-02=111% -- Pot. freq. gain

Pr.4-03=0 -- Forward motion only

Calculation of gain

Pr.4-02=( 10V9V )X100%=111%

10V

		27
It's 0Hz
within	0
this		Hz	54
range.	0V	Hz	10V
	0V		10V

Potentiometer Scale

Example 7:

In this example, the potentiometer is programmed to run a motor is both forward and reverse direction. A motor will be idle when the potentiometer position is at mid-point of its scale. Using Pr.4-03 will disable the external FWD and REV controls.

Max.
Output Pr.1-00
Freq.
	60Hz FWD			Factory Settings
	30Hz
0V	0Hz			Pr.1-00=60Hz--Max. output Freq.
				Pr.4-00=30Hz--Potentiometer bias freq.
		5V	10V
				Pr.4-01=1 -- bias polarity

	30Hz	Pr.4-02=200% -- pot. freq. gain
		Pr.4-03=1 -- pot. REV motion enable
REV
	60Hz

REV. FWD.

60	Hz	60
0V		10V

Example 8:

In this example, the option of anti-slope is shown. Anti-slope is used in an application where control of pressure, temperature, or flow is needed. Under a high pressure or flow situation, a sensor will generate a large signal such as 20 mA or 10V. With anti-slope enable, the large signal will slow or stop the AC drive.

Revision August 2006, SE08, SW V2.61

5-37

VFD007S23A specifications

Delta Electronics VFD007S23A is a highly versatile and efficient variable frequency drive (VFD) designed to control AC motors and enhance energy savings in various industrial applications. Known for its robust performance, this drive provides precise motor control and has become a preferred choice in industries requiring reliable and efficient motor management.

One of the main features of the VFD007S23A is its compact design, which makes it suitable for installations with limited space. With a compact size of only 200mm in height, 150mm in width, and 110mm in depth, it can be easily integrated into existing systems without needing extensive modifications.

The VFD supports a wide range of input voltages, accommodating 200V to 240V three-phase power supply. It is capable of delivering up to 0.75 kW of power, making it suitable for various applications including fans, pumps, and conveyors. Its adjustable frequency output allows for speed control, enhancing process efficiency and reducing energy consumption.

Equipped with advanced control technologies, the VFD007S23A offers both scalar and vector control modes. Scalar control is ideal for applications where precise speed control is not critical, while vector control provides superior torque performance, making it ideal for applications requiring high acceleration and deceleration. This feature allows users to achieve optimal performance regardless of the application requirements.

Incorporating features such as keypad programming, the VFD includes user-friendly interface allowing for easy setup and adjustments. The drive also supports various communication protocols, including Modbus RTU, enabling seamless integration into existing automation systems.

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In conclusion, Delta Electronics VFD007S23A stands out as an efficient and reliable choice for variable frequency drive applications. Its robust design, advanced control technologies, and energy-saving features make it ideal for a wide range of industrial applications, ensuring optimal performance and operational efficiency.