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
Summary of Contents for VFD-EL-W Series
Page 7: ...v This page intentionally left blank ...
Page 21: ...Chapter 1 Introduction VFD EL W 1 14 This page intentionally left blank ...
Page 34: ...Chapter 2 Installation and Wiring VFD EL W 2 13 This page intentionally left blank ...
Page 42: ...Chapter 3 Keypad and Start up VFD EL W 3 8 This page intentionally left blank ...
Page 150: ...Chapter 4 Parameters VFD EL W 4 108 This page intentionally left blank ...
Page 152: ...Chapter 5 Troubleshooting VFD EL W 5 2 5 1 Over Current oc ...
Page 153: ...Chapter 5 Troubleshooting VFD EL W 5 3 5 2 Over Voltage ov ...
Page 154: ...Chapter 5 Troubleshooting VFD EL W 5 4 5 3 Low Voltage Lv ...
Page 155: ...Chapter 5 Troubleshooting VFD EL W 5 5 5 4 Overheat oH1 ...
Page 156: ...Chapter 5 Troubleshooting VFD EL W 5 6 5 5 Overload oL ...
Page 157: ...Chapter 5 Troubleshooting VFD EL W 5 7 5 6 Keypad Display is Abnormal 5 7 Phase Loss PHL ...
Page 158: ...Chapter 5 Troubleshooting VFD EL W 5 8 5 8 Motor Does Not Run ...
Page 159: ...Chapter 5 Troubleshooting VFD EL W 5 9 5 9 Motor Speed Cannot be Changed ...
Page 163: ...Chapter 5 Troubleshooting VFD EL W 5 13 This page intentionally left blank ...
Page 179: ...Appendix A Specifications VFD EL W A 6 This page intentionally left blank ...