Delta Electronics 460V Series, 230V Series, 115V Series manual 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		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

0

REV. FWD.

60	Hz	60
0V		10V

Potentiometer Scale

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