That just gives you the working point when that particular pump is used. That may not be the same as the required working point.
Here's a example, using my system which has a UPS2:
The required flow rate and head are 8 litres/min at 2.2m. The actual working point, shown by the yellow dot, is 9.99 lpm at 3.43m which is where the pump curve and system curve (red line) meet. See graph below.
If a PP setting is used, it needs to provide the required flow/head not those obtained by the fixed speed setting.
The attached UPS2 file is corrupted,
View attachment 36462