Joined: 02 March 2010
There are 2 Duty/Standby pump motor driven by 2 AB PowerFlex 40 VFDs, the operation conditions shall be same as similar propose for these. But, it is found that "Digital In1~4 Sel A051~A054" in both VFD are set with different value by supplier, I assumed that it is incorrect, am I right?
I tried to study the Manual of PowerFlex 40, but it is hard to understand the description of these Digital In 1~4, if any one can help me to understand it?
The setting of A051~A054 in VFD A are: 4, 4, 5, 11;
The setting of A051~A054 in VFD B are: 6, 0, 5, 11;