A - AOI CASE ACK EN, A - 1 Hour Delay rslv, AOI - New CSAT Sent, LOCKED
Current case
Customer issue
Hi, VT-S1040 S/N 1033925-40A/ AOI was installed recently. During the installation we ran one board at a time through the machine with no smema problems. Now when the line is stacked with boards the AOI will not unload the board to the next conveyor. The input side of the aoi is a gate conveyor and output a standard conveyor but not a reject conveyor. It's displaying "unloading pcb" but will not unload. I believe that the smema cable is the correct pin layout. Why does it work with one pcb and not when the line is stacked with boards. Is it a smema setting on the machine? Thank you Peter Vukic Maintenance Department Touchpad Electronics LLC
Hello Peter, Please check the SMEMA connection on the Down Stream conveyor side. If the first board is transferred and the second board waits in the machine then there maybe problem on the conveyor side. The downstream ready signal from the conveyor to AOI must reset after each board is transferred from the AOI to the conveyor. You can simply test that by unplugging the SMEMA cable after one board is transferred. If the 2nd board is transferred, then problem maybe on the conveyor side. Please let us know if this helps. Best Regards
OA
Omron Application EngineerOmron reply | Apr 24, 2026 at 11:25 AM