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SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Parameter
Notes
P1.4.6.4
156
AI4 custom setting maximum “AI4 custom max”
Set the custom minimum and maximum input levels for the AI3 signal
within -160…160%.
AI3/AI4 Output
Analogue
Input
100 %
0 %
0 %
100 %
40 %
Custom
Min
80 %
Custom
Max
P1.4.5.5.
151
AI3 signal inversion “AI3 signal inv”
P1.4.6.5
162
AI4 signal inversion “AI3 signal inv”
The signal inversion function is useful in a situation when e.g. the PLC is sending
power limit to the drive using fieldbus. If the PLC is unable to communicate with the
drive the power limit from fieldbus to the drive would be zero. Using inverted signal
logic zero value from PLC would mean maximum power limit. When inversion is
needed for the process data signal fieldbus values need to be written to Analog input
monitoring signals. See parameter P1.4.5.1 AI3 Signal selection for details.
0 = No inversion
1 = Signal inverted
AI3/AI4 Output
Analogue
Input
100 %
0 %
40 %
Custom
Min
80 %
Custom
Max