Perhaps a second chance. Its the R and S 110Vac single phase designation that doesn't sit well with me. 110Vac single phase will have a hot (L)ine and a (N)eutral line and the hot will measure close to 110V to ground and the neutral will have little to no voltage ~0Vac to ground. When you jump up to 220V single phase, both (L)ine and (N)eutral are hot and will both measure ~110V to ground, and 220V L to N.
The diagram implies, when using single phase, connections are made at R/L and T/N, and no indication of a jumper requirement to S. Many three phase only drives will have circuitry to verify all three legs, R,S,T, are connected or the unit will fault and not operate. A common workaround, when using an intended three phase unit in single phase supply (derated, general rule of thumb 2x vfd rating for application) is to jumper one leg to S.
The diagram thus implies that only the R/L and T/N connections are needed ad single phase connections are an intended option, meaning rated for service (no derating required).
The manual, if you could read, should address all of this. If you could repost the manual or link to it, I will see if I can get someone to translate the manual to verify.
There should also be a sticker or label on the unit with the voltage requirement and the 2.2kW rating. If it indicates 220Vac, I would give it a go with 220Vac single phase connecting at R and T.
After reading the posted spec, wow very well written (what is tow- phase?). Is the manual in chingrish or native mandarin/cantonese?
The spec sheet does suggest 220V power input, no phase designation, but also indicates possible 380V supply, which strikes me as odd. Personally, I would still give it a go with 220V single phase at R and T.
The Hitachi's come with an Excellent manual in North American english, and I am willing to bet available in Japanese as well.