kofiyartel
Member
Hi , I am trying to replace an old inverter with a new one and its giving me issues . Once the new one was installed , the S7-300 PLC started giving SF and BF error blinking lights (Red) and the drive initially was giving F79 Error. after trying to restore factory settings, we get an error 35 , after a series of tries to reset , we now get to status 2 which says no enable. But then , there is a similar machine in the factory using the same drive and running the same program , and when i remove the memory card from that drive and slot into this machine , it works and there are no issues. can any one help.