Discover VEVOR VFD 1.5KW Variable Frequency Drive 7A 220V Single Phase to 3 Phase Inverter Converter for Spindle Motor Speed Control, Premium Quality and Powerful Performance at lowest price, 2days delivery, 30days returns.
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In the specs. for it, it gives the model number as A2-8015
In there, it says parameter 32, option 5 will write OEM settings (i.e. factory reset). It also lists for each individual parameter the default setting. That might be another, quicker route to do what you want.
The reason for all the above links is that if any of them are wrong, the final answer also has a good chance of being wrong so please confirm for yourself.
Remember:
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKEN.
Thanks @Agroshield . What happened was,,,,,,,,the invertor ran the motor ok when it arrived but was slow acceleration and little torque. I adjusted some of the parameters to what I thought suitable, now it comes up with 'error' when I press start. I think that if I can get it back to original setting that I can then adjust the parameters one at a time and at least if it shows 'error' I will know where I am with it. Will try it soon.