text: <s>[INST] Using a VSD with a Demag conical brake motor Summary: Demag Conical brake motor can be used with an ABB ACS 800 drive, is there a suitable Rockwell productA Demag conical brake motor can be used with an ABB ACS 800 drive. Is there any AB Powerflex Inverters which are suitable for this task? [/INST] We've actually done this with PF753 drives, without knowing before hand that the motors were conical rotor. The crane bridge had 6 motors running off one PF753, and it worked surprisingly well. Only at the slowest speeds did the rotors not release. It took some tuning of parameters P60-P63 to get something the operators thought was good. Never mind that it was VERY qualitative and I think they said one test run was better than another despite the fact that we'd not changed anything that time. \\n </s>