At Alpha Drives we are just completing an MCC for control of Dosing, Aeration, sludge and pumping station with final effluent flow. Using Siemens S71500 , TP1200 Comfort Display , ET200SP cards & 12 x G120x VSD’s (2.2 KW-4KW-11KW) / Profibus DP. The G120x is optimized for pumping and Fan applications with de-ragging functions , pipe filling modes, cavitation detection & Multipump operation. SINAMICS G120X also provides a real-time clock for autonomous, time-controlled operation as well as a timestamp for fault and alarm reports.