[Problem with V120-22-UN2]

Hi everyone ! I’m new member of Unitronic Family !

I had know about Unitronic very long time ago ! But now I have contact it at new factory ! 

I’m technical of Dao Coffee Factory at Laos, At here have 2 machine filling&packing,  them buy from Thailand which use Unitronic Vision120-22-UN2 connect with inverter to control speed machine and something other (solenoil valt,thermocouple….).

Machine Run when press Start button. But now get problem :

When I power on machine, motor auto run while I didn’t press start Button. I can’t press Start or Stop button to stop machine.

Pls help me ! I find very doccument about Unitronic but can’t resolved this problem !

Thank you very much !