text: <s>[INST] 2-phase Powerflex 755? Hi Is it possible to use only two phases (230V each) for supplying Powerflex 755 driving 3-phase motor? I am asking because I've noticed that some of our power inverters are connected to three phases but when I measure current in each phase there is only current in L2 and L3 and no in L1. [/INST] Rockwell technical data document: http://literature.rockwellautomation.com/idc/groups/literature/documents/td/750-td001_-en-p.pdf page 9 says frames 1 through 7 can be supplied with single-phase, at the cost of derating the drive capacity by 50%. You cannot select by software to single-phase the drive, you have to wire it that way. What is the voltage between each of the legs? \\n </s>