PowerFlex Digital DC Drive User Manual - Publication 20P-UM001C-EN-P - July 2008
Application Notes C-3
Configure the following:
• Set Par 70 [Anlg In1 Sel] = “Speed Ref A”
• Set [Digital Outx Sel] = “Input1 Cmp” (Par 1045 [Anlg In1 Cmp Eq])
• Set Par 1042 [Anlg In1 Cmp] = 4667 (700 x 10000 / 1500)
• Set Par 1043 [Anlg In1 Cmp Err] = 666 (100 x 10000 / 1500 )
• Par 1045 [Anlg In1 Cmp Eq] = “1” (high) when the signal on Analog
Input 1 is within the range specified in Par 1043 [Anlg In1 Cmp Err]. Par
1045 [Anlg In1 Cmp Eq] = “0” (low) when the signal on Analog Input 1
is outside the range specified in Par 1043 [Anlg In1 Cmp Err].
Example 2:
An application requires an indication via a digital output that the output
current is within ±2% of 50% of the maximum current limit.
• Par 7 [Current Limit] = 100% (maximum reference value)
• For Analog Input 1, 10V or 20mA sets the maximum value = Par 7
[Current Limit]
Configure the following:
• Set Par 70 [Anlg In1 Sel] = “Pos Cur Lim”
• Set [Digital Outx Sel] = “Input1 Cmp” (Par 1045 [Anlg In1 Cmp Eq])
• Set Par 1042 [Anlg In1 Cmp] = 5000 (50 x 10000 / 100)
• Set Par 1043 [Anlg In1 Cmp Err] = 200 (2 x 10000 / 100 )
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