Delta Electronics VFD-M - Manual (Page 78)

Chapter 4 Parameters|
Revision May 2008, ME14, SW V3.04 4-43
Pr.47 Desired Frequency Attained Unit: 0.1Hz
Settings 0.00 to 400.0 Hz Factory Setting: 0.00
This parameter allows monitoring a certain frequency and then activates one of the Multi-
function output terminals (Pr.45 or Pr.46 set to 8) when that frequency is achieved.
Desired Freq. Detection
range
-2Hz
Detection
range
+
- 4Hz
Detection range
+
- 2Hz
Time
Freq.
Max. Output
Freq.
ON
ON
OFF OFF
OFF
OFF
Preset Freq.
Attained
Indication
Pr.45 to
Pr.46
Desired Freq.
Attained
Indication
Pr.45 & Pr.46
Desired Freq. Attained & Preset Freq. Attained
Pr.47
Pr.48 Adjust Bias of External Input Frequency Unit: 0.1Hz
Settings 0.00 to 200.0% Factory Setting: 0.00 Hz
This parameter provides a frequency offset when the source of frequency command is the
analog input.
Pr.49 Potentiometer Bias Polarity
Factory Setting: 00
Settings 00 Positive Bias
01 Negative Bias
This parameter sets the potentiometer Bias Frequency to be positive or negative.
Pr.50 Potentiometer Frequency Gain Unit: 1%
Settings 0.10 to 200.0% Factory Setting: 100.0
This parameter sets the ratio of analog input vs frequency output.
Pr.51 Potentiometer Reverse Motion Enable
Factory Setting: 00
Settings 00 Reverse Motion Disabled in negative bias
01 Reverse Motion Enabled in negative bias