Good Day, I have a Schindler elevator modernized with a STEP controller. The inverter on this control cabinet is Frenic 5000VG7S Series. Last week we replaced this inverter with the same model due to frequent error. Upon replacing it, we encounter a problem the elevator wont run in normal even during inspection mode. as we press the going down direction on manual mode the motor will run up first before it will go down. upon going down the elevator will stop. I think the Elevator Main PC Board are not communicating with the inverter. Do any one experience this kind of problem. Any suggestions will be highly appreciated.
