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What to do if the barrier doesn’t open after reading the card?
Try the following possibilities:
Short circuit the NO and COM terminals of the reader, check whether the
switch is open. If it is not open, check whether the connection between
the reader controller port and the barrier port is correct.
Check whether the barrier is open when the UP and GND terminals are
short circuited. If not, the barrier isfaulty.
Check whether the tag has registered the information on the software
and the data is synchronized to the reader. When swiping the card,pay
attention to whether the controller has the sound of relay jumping, and
whether the software has the normal door opening record display. If so,
check whether the output port of the controller relay signal is connected
to the brake in a wrong manner or connected to another output port.