Good day. Please, I want to replace a inverter MM440 (1.5KW) with a new one on my production line. But whenever I click on the connect to target icon, it tells me "cannot connect to target device". What could be responsible for this?

Thanks

Thank you so much for this input. It is really of great help.

What could be make the MM440 constantly display fault then eventually stop the production line. We can only resume line run after we reset the Micromaster itself.

How do we prevent a reocurrence of this faults?