I have been working for programming an inverter Allen Bradley 1305 - 3HP. I have scaled the inverter 0-10V = 0-50HZ. I want that when speed reference drops bellow 1V, output frequency remain at 5HZ (idle speed). There is a parameter Minimum Frequency and when I put 5HZ in this parameter, I found my requirement fulfill but the scale of drive (1V = 5HZ) disturbs and drive scales between min freq and max freq while I need that the scale must remain 1V = 5HZ and bellow the 1V value of speed reference. The output freq remain 5HZ. I have an old AB drive in which there is a parameter "Lower Freq clamp" which fulfill that requirement but this new drive don't have.
Can anyone have any idea for solving that problem?
Setting Of Idle Speed Of Motor
Started by AB2005, Jan 13 2009 04:03 AM
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AB2005
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Posted 13 January 2009 - 04:03 AM
"Don't assume any thing, always check/ask and clear yourself".
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