Dear Sir,
One of our client using the Dc drives for their applications. In that plant we comissioned our compressor 22Kw. For our compressor we have the Controller which have the Digital O/p , relay O/p, Analog I/p (electronic Circuit PLC) to control the Star Delta circuit & other purposes for compressor. It requires 24v Ac. So we have transformer 50VA to stepdown 415v Ac to 24v Ac. But only at the time when customer starts the DC motor for their application means our compressors stops & Controller (electronic Circuit PLC) also get hangs automatically by itself. But it getting the 415v 50Hz 3phase supply & for I/p of (electronic Circuit PLC) also getting 24vac 50Hz. But it doesnt give any command just in hang position. But our compressor run when their DC motor in stop condition. So plz give me the soluton whether we should use any filters before I/p of (electronic Circuit PLC) to activate..??
I also checked volage there was no DCv in the supply..........We thought there will be prblm due to the harmonics. So plz give me the soluton whether we should use any filters before I/p of (electronic Circuit PLC) to activate..??
Rgs
Thiruvenkatam.S.P| Engr-After sales I ELGI-Equipments ltd | 23,Shivaji Marg,karam Pura| New Delhi,15| India M: +919910016727 | P: 011-25928095, 8593 | f: 011-25459375 | e: thiruvenkatam@elgi.com