According to the manual and depending on the VFD model, there may be one or two SP open collector outputs and one relay output.
Unfortunately, the parameters list shows only 2 : P58 and P60. The former seems to be for SP1, the later for the relay. It's quite possible that a P59 exists in case SP2 is present.
Anyway this is the area where you should experiment.
The values explanations are not very clear, this is what I understand :
- 5 Reflecting the status of a multifunction input (X1-X6) which function is set to 20 (what if several input are set to 20 if it's even possible ?? )