Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 117)

Rockwell Automation Publication 750-RM002B-EN-P - September 2013 117
Feedback and I/O Chapter 2
Case 3
Absolute (Default)
Certain quantities used to drive the analog output are signed, for example the
quantity can be both positive and negative. You have the option of having the
absolute value (value without sign) of these quantities taken before the scaling
occurs. Absolute value is enabled separately for each analog output via the bit
enumerated P71 [Analog Out Abs].
P77 [Anlg Out0 Data] P78 [Anlg Out0 DataHi] P79 [Anlg Out0 DataLo] P80 [Anlg Out0 Hi]
[Anlg Outn DataHi] = 1500
[Anlg Outn DataLo] = 500
When the motor speed reaches 500 rpm, [Anlg Outn Val] begins to increase from 2.
When the motor speed reaches 1500 rpm, [Anlg Outn Val] is at maximum of 8.
[A
nl
g O
ut
n Va
l]
[Anlg Outn Hi] = 8
[Anlg Outn Lo] = 2
P82 [Anlg Out0 Val] P81 [Anlg Out0 Lo]