1.Used in the SMT behind the AOI to separate the OK/NG PCBs.
When received the first NG signal from AOI,PCB flow to the middle of rail.
PCB leave the rail and goes up then alarms by sounds and green light flash
to remind operator double check.OK PCB transport to downstream.When received
the second NG signal from AOI,conveyor stop working and alram by sounds and
red light flash,press reset button to continue after pick away the first NG PCB.