Min 5000 TL-XH
By chat in whatsapp, I had a good contact and help from Ayoub. Sometimes when the installation and cabling is done right. The problem exist on another plane. The tension measured between the A en B from the sys com from the inverter was between 3 - 4 V. So Ayoub saw the PROT(ocol) was not set right. Had to be on n1 not on 645. Thanks for the insight and the very late evening work. Giving service is not always easy and it is often busy times for specialists. Thanks.