Your search for the manual likely started with a blinking error on the screen. Here are the top 3 faults listed in the CVF-S1 manual and how to fix them:
: High-performance space voltage vector control ( Overload Capacity : rated current for 60 seconds. Frequency Range : 600.00600.00 Start Torque : Input & Output Terminal Configuration Convo Inverter Cvf-s1 Manual Pdf