text: <s>[INST] A large dumb drive Hi.Is there anyone else here who quite often needs a large drive (75kw - 315kw) that does not need a great lot of smarts. We do a lot of water pumping jobs so we really don't need all the bells and whistles. We just need rudimentary speed control, EMC filtering (built in) with an ethernet port and a 232 port that can talk modbus. The absence of all the smarts should keep the cost down which in this line of work is the most important thing.I thought the 400 range was going to fill this need but they do not even go up to 75kw. The filter is not built in and the voltage range is 240 and 480V. There are no 400V versions.Hoping this will get someone at RA thinking about larger, simpler drives.Regards Alan Case [/INST] The Powerflex400 does go up to 260kw @ 380-480vac, has modbus built-in and is 30% cheaper than PF700H. If the VSD is over 40% of the transformer load at the PCC then an EMI filter is not the solution. You will need a passive harmonic filter ( add another $10k aust ), and the speed range would need to be above 60% or the capacitors will screw up the powerfactor. Unfortunatly,there are alot of stories about vsd's saving you money, but all the examples used do not take in account the Harmonics generated and the $$$$'s needed to solve this. \\n </s>