Delta VFD015EL43W-1 - Keypad Potentiometer Bias; Keypad Potentiometer Bias Polarity; Keypad Potentiometer Gain

Chapter 4 Parameters  VFD-EL-W
4-49
Group 4: Input Function Parameters
 You can set this parameter during operation.
04.00
Keypad Potentiometer Bias Unit: 0. 1
Settings 0.0–100.0% Default: 0.0
04.01
Keypad Potentiometer Bias Polarity
Default: 0
Settings 0: Positive Bias
1: Negative Bias
04.02
Keypad Potentiometer Gain Unit: 0.1
Settings 0.1–200.0% Default: 100.0
04.03
Keypad Potentiometer Negative Bias, Reverse Motion
Enable/Disable
Default: 0
Settings 0: No Negative Bias Command
1: Negative Bias: REV Motion Enabled
 Use Pr.04.00–04.03 for applications that use the potentiometer signal on the digital keypad to adjust the
setting frequency. The potentiometer is not an external device, but you need to use it when setting
parameters. Refer to the following examples to know how to use it.
 As shown in the left figure below, operating the potentiometer on the digital keypad to the leftmost means the
minimum value that the lowest voltage 0 V
DC
corresponds to. As shown in the right figure below, operating the
potentiometer on the digital keypad to the rightmost means the maximum value that the highest voltage 5 V
DC
corresponds to.
Example 1:
You set Pr.02.00 to 4 (the master frequency command comes from keypad potentiometer), set Pr.04.00~04.03
to defaults, and then you can set the main frequency command through the keypad potentiometer.
60Hz
Max.(5V)
Default:
Pr.01.00=60 Hz Max. operation frequency
Pr.04.00=0 % Bias adjustment
Pr.04.01=0 Bias direction adjustment
Pr.04.02=100 % Gain of frequency adjustment
Pr.04.03=0 No negative bias command
Pr.01.00
Max.
operation
frequency
Frequency/Hz
0Hz
Potentiometer
(voltage/V)
Min.(0V)
The minimum
The maximum